{"title":"Lifting Clamps","description":"\u003ch2\u003eLifting Clamps for Safe \u0026amp; Secure Material Handling\u003c\/h2\u003e\n\u003cp\u003eDiamond Tool Store offers a professional selection of lifting clamps designed for secure lifting, positioning, and handling of steel plate, beams, structural materials, and other heavy loads. Built for commercial, construction, fabrication, and industrial applications, lifting clamps provide a reliable connection between your lifting equipment and the material being handled.\u003c\/p\u003e\n\u003cp\u003eWhether you're lifting steel plates, structural beams, or other heavy materials, our lifting clamps are designed for strength, durability, and dependable performance in demanding environments. Choose from a variety of lifting clamp designs and capacities to match your specific lifting and material-handling requirements.\u003c\/p\u003e\n\u003ch3\u003eHeavy-Duty Construction for Industrial Applications\u003c\/h3\u003e\n\u003cp\u003eOur lifting clamps are manufactured for demanding lifting and rigging applications, providing a secure grip on materials while allowing for efficient handling and positioning. Available in different configurations, capacities, and lifting orientations, these clamps help contractors and industrial professionals handle heavy materials with greater efficiency.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHeavy-duty steel construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for industrial lifting and material handling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMultiple working load limits available\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVertical and horizontal lifting options\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSecure grip on steel and structural materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDurable construction for demanding applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact and portable designs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with cranes, hoists, slings, and rigging hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvailable in multiple sizes and configurations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for commercial and industrial use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eLifting clamps are commonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSteel plate lifting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStructural steel handling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBeam lifting and positioning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOverhead lifting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaterial handling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSteel fabrication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConstruction and steel erection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEquipment installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturing facilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWarehouse operations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical contracting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLoading and unloading heavy materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypes of Lifting Clamps\u003c\/h3\u003e\n\u003cp\u003eOur selection of lifting clamps includes solutions for a variety of material-handling applications, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePlate lifting clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVertical lifting clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHorizontal lifting clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBeam clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBeam flange clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGirder clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStructural steel lifting clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpecialty lifting clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatible Equipment\u003c\/h3\u003e\n\u003cp\u003eLifting clamps can be used with a variety of lifting and rigging equipment, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eChain hoists\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLever hoists\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectric hoists\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCranes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChain slings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWire rope slings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSynthetic slings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShackles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLifting hooks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRigging hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpreader beams\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustries Served\u003c\/h3\u003e\n\u003cp\u003eLifting clamps are widely used in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCommercial construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStructural steel erection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSteel fabrication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWarehousing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical contracting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUtilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMining\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOil \u0026amp; gas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMarine and shipbuilding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower generation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFacility maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Buy Lifting Clamps from Diamond Tool Store?\u003c\/h3\u003e\n\u003cp\u003eDiamond Tool Store supplies professional-grade lifting and material-handling equipment for contractors, fabricators, and industrial professionals. Our lifting clamps are selected for their durability, reliable performance, and suitability for demanding lifting applications. With a variety of sizes, capacities, and configurations available, you can find the right lifting clamp for your specific material-handling needs.\u003c\/p\u003e","products":[{"product_id":"caldwell-model-dws-locking-lifting-clamp","title":"Caldwell Model DWS Locking Lifting Clamp","description":"\u003ch2\u003eRenfroe Model DWS Horizontal Locking Lifting Clamp — Lock-Closed Security for Horizontal Sheet Lifting\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model DWS is a horizontal locking lifting clamp engineered for the controlled, horizontal lifting of individual steel plates and sheets. Available in three capacity ratings — 1\/2 Ton, 1-1\/2 Ton, and 3 Ton — this clamp is built for contractors, steel fabricators, and rigging professionals who demand reliable, repeatable performance when handling flat stock horizontally. The DWS incorporates Renfroe's industry-renowned \"lock-closed\" feature, providing a positive mechanical lock that prevents accidental jaw release during the lift cycle. Manufactured by The Caldwell Group, Inc. in Rockford, IL, the Renfroe brand has been trusted by international lifting clamp users for more than 50 years.\u003c\/p\u003e\n\u003cp\u003eUnlike standard horizontal clamps that rely solely on cam grip tension, the Model DWS adds a dedicated lock assembly that mechanically secures the jaw in the closed position before and during the lift — a critical distinction when working overhead or in high-traffic job sites. The serrated gripping cam delivers a firm, positive bite on the plate surface, eliminating slippage under load that can occur with smooth-cam alternatives.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003eLock-Closed Mechanism\u003c\/h4\u003e\n\u003cp\u003eThe DWS's signature lock-closed feature mechanically locks the cam jaw shut before the lift begins, preventing inadvertent opening under shock loads or vibration. For contractors lifting plate over personnel or in confined areas, this provides a critical layer of drop prevention beyond what friction-only clamps offer. The lock must be engaged prior to every lift — a simple, fast step that significantly reduces risk.\u003c\/p\u003e\n\u003ch4\u003eSerrated Gripping Cam\u003c\/h4\u003e\n\u003cp\u003eThe hardened, serrated gripping cam bites into the plate surface to maintain a secure hold throughout the lift cycle. This design ensures grip integrity even on plates with mill scale, light surface rust, or minor surface irregularities common on structural steel. The cam geometry is optimized for horizontal orientation, distributing load forces appropriately across the jaw contact area.\u003c\/p\u003e\n\u003ch4\u003eThree Capacity Sizes\u003c\/h4\u003e\n\u003cp\u003eThe DWS is available in 1\/2 Ton (0–3\/4\" jaw opening), 1-1\/2 Ton (0–1\" jaw opening), and 3 Ton (0–1-1\/4\" jaw opening) to match the specific plate thickness and load weight of each job. Selecting the correct capacity size — rather than using oversized clamps on light loads — is essential to proper cam engagement and safe operation. Consult the factory for possible larger capacities beyond the standard range.\u003c\/p\u003e\n\u003ch4\u003ePaired \/ Tripod Arrangement Requirement\u003c\/h4\u003e\n\u003cp\u003eThe Model DWS is designed to be used in pairs, sets of pairs, or in a tripod arrangement to ensure the lifted plate remains balanced and level throughout the lift. This engineered usage requirement prevents tipping, edge loading, and uneven stress distribution across the plate. Proper pairing also allows for balanced rigging geometry when using a spreader beam or crane hook assembly.\u003c\/p\u003e\n\u003ch4\u003eCompact, Robust Construction\u003c\/h4\u003e\n\u003cp\u003eAt just 9 lbs. for the 1\/2 Ton model, the DWS is easy to handle, transport, and position on the plate prior to lifting. The compact clamp body (4\" length x 3.56\" height) keeps the rigging profile tight and manageable, particularly in steel yards or fabrication shops where working space is limited. The overall clamp height with shackle of 7.38\" keeps the lifting assembly low-profile relative to the load.\u003c\/p\u003e\n\u003ch4\u003eRENFROE-Genuine Components\u003c\/h4\u003e\n\u003cp\u003eEvery Model DWS is assembled from factory-specified Renfroe components — including the DWS-1 gripping cam, DWS-2 lifting shackle, DWS-3 lock assembly, DWS-4 lock spring, and DWS-10 lock ring — ensuring full parts traceability and compatibility with Renfroe repair kits. Using genuine replacement parts maintains the clamp's rated capacity and ensures the lock mechanism functions as designed. Field modifications, grinding, welding, or alterations to any clamp component are strictly prohibited.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eHorizontal Steel Plate Lifting\u003c\/h4\u003e\n\u003cp\u003eThe DWS is purpose-built to lift individual steel plates in the horizontal (flat) position, making it the standard choice for moving structural plate in fabrication shops, steel service centers, and on-site steel erection work.\u003c\/p\u003e\n\u003ch4\u003eSteel Sheet Yard Handling\u003c\/h4\u003e\n\u003cp\u003eSteel distributors and plate processors use the DWS in pairs to pull sheets from storage racks or floor stacks and transfer them to processing equipment such as plasma tables, press brakes, or shears without tipping or marring the plate surface.\u003c\/p\u003e\n\u003ch4\u003eBridge and Structural Steel Fabrication\u003c\/h4\u003e\n\u003cp\u003eFabricators handling large structural plate components during bridge construction or heavy structural steel projects rely on the DWS's lock-closed feature and high cam grip for confident horizontal picks over working personnel and equipment.\u003c\/p\u003e\n\u003ch4\u003eCrane and Hoist Integration\u003c\/h4\u003e\n\u003cp\u003eThe DWS integrates with standard overhead cranes, gantries, and chain hoists via the included lifting shackle, making it compatible with most existing rigging setups in fabrication and manufacturing facilities. A flexible connection between the crane hook and clamp shackle is required per the operator manual.\u003c\/p\u003e\n\u003ch4\u003eSteel Erection and Site Placement\u003c\/h4\u003e\n\u003cp\u003eOn construction sites, the DWS is used to precisely position base plates, embed plates, and large flat structural members horizontally during placement operations where vertical clamps or slings are not practical or safe.\u003c\/p\u003e\n\u003ch4\u003eMaintenance and Equipment Rebuilds\u003c\/h4\u003e\n\u003cp\u003eMaintenance crews use paired DWS clamps to horizontally lift and reposition heavy machine base plates, equipment beds, or steel frame sections during machinery installation and plant rebuild projects.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural steel plate (A36, A572, A514, and similar grades)\u003c\/li\u003e\n\u003cli\u003eCarbon steel sheet and plate with mill scale or light surface rust\u003c\/li\u003e\n\u003cli\u003eFlame-cut and plasma-cut steel plate\u003c\/li\u003e\n\u003cli\u003eRolled steel flat stock\u003c\/li\u003e\n\u003cli\u003eSteel base plates and embed plates\u003c\/li\u003e\n\u003cli\u003eHeavy steel machine beds and equipment frames (horizontal orientation)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20360.pdf?v=1785179645\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Renfroe_20OM211-DWS_20050426.pdf?v=1785179645\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026.pdf?v=1785179645\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026.pdf?v=1785179645\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026.pdf?v=1785179645\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits.pdf?v=1785179651\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eStage 1: Pre-Lift Inspection\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the operator manual completely before first use. Take the manual to your supervisor before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift per the Minimum Recommended Clamp Inspections document. Check for wear, cracks, deformation, or missing\/damaged components.\u003c\/li\u003e\n\u003cli\u003eVerify the clamp capacity rating matches or exceeds the weight of the plate to be lifted. Do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness falls within the jaw opening range for the selected clamp size (1\/2 Ton: 0–3\/4\"; 1-1\/2 Ton: 0–1\"; 3 Ton: 0–1-1\/4\").\u003c\/li\u003e\n\u003cli\u003eConfirm all Renfroe components — gripping cam, lock assembly, lock spring, lock ring, lifting shackle — are present and undamaged.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 2: Clamp Setup and Attachment\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSecure the load in its resting position before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eOpen the jaw to the appropriate width for the plate thickness being lifted.\u003c\/li\u003e\n\u003cli\u003ePosition the clamp on the edge of the plate in the horizontal orientation, ensuring the serrated cam contacts the plate surface squarely.\u003c\/li\u003e\n\u003cli\u003eEngage the lock-closed mechanism to lock the jaw in the closed position around the plate. Do not proceed with the lift if the lock is in the open position.\u003c\/li\u003e\n\u003cli\u003eAttach the clamp to the rigging using a flexible connection between the crane hook and the clamp shackle. Do not attach the clamp directly to the crane hook. Do not use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eArrange clamps in pairs, sets of pairs, or tripod arrangement to balance the load. Do not lift with a single clamp.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 3: Lifting Operation\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eVerify load balance before lifting. Use enough clamps to keep the plate level and stable throughout the lift.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eLift only one plate at a time. Do not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not side-load a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eDo not rush the lift operation. Maintain controlled crane or hoist speeds.\u003c\/li\u003e\n\u003cli\u003eDo not exceed the rated capacity of the clamp at any point during the lift.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 4: Post-Lift Maintenance\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eInspect the clamp after each use per the operator manual maintenance and inspection schedule.\u003c\/li\u003e\n\u003cli\u003eLog clamp condition on the Lifting Clamp Survey Report (Good Condition \/ Needs Repair \/ Beyond Repair — Discard).\u003c\/li\u003e\n\u003cli\u003eUse only genuine Renfroe replacement parts for any repairs to assure proper operation and maintain rated capacity.\u003c\/li\u003e\n\u003cli\u003eDo not alter the clamp in any way — do not grind, weld, or modify any component.\u003c\/li\u003e\n\u003cli\u003eStore clamps in a clean, dry location when not in service.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eDWS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHorizontal Locking Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd\u003e1\/2 Ton, 1-1\/2 Ton, 3 Ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity (tons) — 1\/2 Ton Model\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity (tons) — 1-1\/2 Ton Model\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity (tons) — 3 Ton Model\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Jaw Open (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e0.75 (0 – 3\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Jaw Open (in.) — 1-1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e1.0 (0 – 1\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Jaw Open (in.) — 3 Ton\u003c\/td\u003e\n\u003ctd\u003e1.25 (0 – 1-1\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (lbs.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (lbs.) — 1-1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (lbs.) — 3 Ton\u003c\/td\u003e\n\u003ctd\u003e37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e3.56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Open Length (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e7.38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thickness (in.) — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e0.62\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height (in.) — 1-1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e4.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length (in.) — 1-1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height (in.) — 1-1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e0.62\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter (in.) — 1-1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage Requirement\u003c\/td\u003e\n\u003ctd\u003eMust be used in pairs, sets of pairs, or tripod arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc. — Renfroe Brand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturing Location\u003c\/td\u003e\n\u003ctd\u003eRockford, IL, USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number — 1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003eDWS-00.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number — 1-1\/2 Ton\u003c\/td\u003e\n\u003ctd\u003eDWS-01.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number — 3 Ton\u003c\/td\u003e\n\u003ctd\u003eDWS-03.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eHazard Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRisk of dropped load if lock is not engaged prior to lifting\u003c\/li\u003e\n\u003cli\u003eRisk of load imbalance or tipping if clamps are not used in proper paired or tripod arrangement\u003c\/li\u003e\n\u003cli\u003eRisk of overload failure if clamp capacity is exceeded or incorrect size is selected for plate thickness\u003c\/li\u003e\n\u003cli\u003eRisk of cam slippage if clamp is used on plate thickness outside the rated jaw opening range\u003c\/li\u003e\n\u003cli\u003eRisk of clamp release if attached directly to crane hook without a flexible connection\u003c\/li\u003e\n\u003cli\u003eRisk of structural failure if clamp components are modified, welded, or ground\u003c\/li\u003e\n\u003cli\u003eRisk of injury from lifting over workers or personnel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePersonal Protective Equipment\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHard hat required when working in areas where overhead lifting is in progress\u003c\/li\u003e\n\u003cli\u003eSteel-toed safety boots required during clamp attachment and load positioning\u003c\/li\u003e\n\u003cli\u003eHeavy-duty work gloves recommended when handling clamp and steel plate edges\u003c\/li\u003e\n\u003cli\u003eHigh-visibility vest recommended in active crane or hoist operating areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the full operator manual before first use; take manual to supervisor before putting clamp in service\u003c\/li\u003e\n\u003cli\u003eEngage the lock-closed mechanism before every lift — never lift with the lock in the open position\u003c\/li\u003e\n\u003cli\u003eAlways use clamps in pairs, sets of pairs, or tripod arrangement — never use a single clamp alone\u003c\/li\u003e\n\u003cli\u003eNever lift more than one plate at a time; never lift from the bottom of a plate stack\u003c\/li\u003e\n\u003cli\u003eNever side-load a straight shackle clamp\u003c\/li\u003e\n\u003cli\u003eNever attach clamp directly to the crane hook; always use a flexible connection between crane hook and clamp shackle\u003c\/li\u003e\n\u003cli\u003eNever use a heavy flexible connection with this clamp\u003c\/li\u003e\n\u003cli\u003eNever lift over workers, safety areas, or personnel\u003c\/li\u003e\n\u003cli\u003eSelect the correct capacity clamp for each job; do not use oversized clamps to lift light loads\u003c\/li\u003e\n\u003cli\u003eDo not exceed rated capacity at any time\u003c\/li\u003e\n\u003cli\u003eInspect clamp before every lift; follow all maintenance and inspection procedures per the operator manual\u003c\/li\u003e\n\u003cli\u003eUse only genuine Renfroe replacement parts for all repairs and maintenance\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner\u003c\/li\u003e\n\u003cli\u003eAttend a Renfroe factory training class to establish proper clamp use\u003c\/li\u003e\n\u003cli\u003eConsult the operator manual or factory when in doubt about any aspect of clamp selection or operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model DWS be used as a single clamp for a horizontal lift?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model DWS must always be used in pairs, sets of pairs, or in a tripod arrangement to ensure the load remains balanced and level. Using a single clamp would result in an unbalanced, unsafe lift and is explicitly prohibited in the operator manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What plate thicknesses is the 1\/2 Ton DWS designed for?\u003c\/strong\u003e\u003cbr\u003eA: The 1\/2 Ton Model DWS accommodates plate thicknesses from 0 to 3\/4\" (0.75\"). The 1-1\/2 Ton handles 0 to 1\", and the 3 Ton handles 0 to 1-1\/4\". Always confirm plate thickness is within the rated jaw opening range before lifting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the lock-closed feature and why does it matter?\u003c\/strong\u003e\u003cbr\u003eA: The lock-closed feature is a mechanical lock assembly that positively secures the jaw in the closed position around the plate prior to and during the lift. Unlike clamps that rely solely on cam friction, the lock prevents the jaw from opening due to shock loads, vibration, or sudden load shifts — a critical safety advantage when lifting overhead or near personnel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can replacement parts be sourced for the Model DWS?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The DWS uses fully specified Renfroe components including the DWS-1 gripping cam, DWS-2 lifting shackle, DWS-3 lock assembly, DWS-4 lock spring, DWS-5 shackle pin, DWS-6 cam pin, DWS-7 body bolt and spacer sleeve, DWS-8 spring clip, DWS-10 lock ring, and DWS-11 cam stop pin. Only genuine Renfroe replacement parts should be used to maintain rated capacity and proper lock function. Refer to the Renfroe Repair Kits Catalog for ordering information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the DWS be used to lift plate vertically or to turn plate from horizontal to vertical?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model DWS is a horizontal-only clamp. It is not rated for vertical lifting or turn\/lift operations. Using a horizontal-only clamp for vertical lifts is explicitly listed as a prohibited misuse in the Renfroe operator manual. Select a Renfroe vertical lift or vertical turn\/lift clamp for those applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are larger capacities available beyond the standard 3 Ton model?\u003c\/strong\u003e\u003cbr\u003eA: Possibly. The manufacturer states to consult the factory directly for possible larger capacities beyond the standard 1\/2 Ton, 1-1\/2 Ton, and 3 Ton sizes. Contact The Caldwell Group at 800.628.4263 or 815.229.5667 for custom capacity inquiries.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"0.5","offer_id":48564513079470,"sku":"DWS-00.50-A","price":838.0,"currency_code":"USD","in_stock":true},{"title":"1","offer_id":48564513112238,"sku":"DWS-01.50-A","price":1273.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_DWS_Silo_1-1280x1280.webp?v=1785179654"},{"product_id":"caldwell-model-lhc-horizontal-lifting-clamp","title":"Caldwell Model LHC Horizontal Lifting Clamp","description":"\u003ch2\u003eModel LHC Horizontal Lifting Clamp — Secure, Cam-Activated Steel Plate Transport\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell Model LHC is a non-locking horizontal lifting clamp engineered for transporting steel plates in a flat, horizontal orientation. Designed for use by rigging professionals and steel fabrication contractors, it is intended to be deployed in single pairs (2), double pairs (4), or tripod (3) configurations with a compatible lifting sling. The serrated gripping cam mechanism bites into the load surface to deliver a positive, secure grip throughout the lift. With a 0.25-ton capacity and a maximum plate thickness of 1 inch, this entry-level model is ideal for lighter steel plate handling operations.\u003c\/p\u003e\n\u003cp\u003eUnlike beam clamps or vertical plate clamps, the LHC is purpose-built exclusively for horizontal lifting, eliminating the risk of misapplication in vertical configurations. Its cam-based design requires fewer moving components than locking-type clamps, reducing maintenance overhead and downtime on the job site.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003eSerrated Gripping Cam\u003c\/h4\u003e\n\u003cp\u003eThe serrated cam bites directly into the plate surface when tension is applied, ensuring a positive, slip-resistant grip. This mechanical engagement removes dependence on friction alone, giving riggers greater confidence when handling flat steel plate horizontally.\u003c\/p\u003e\n\u003ch4\u003eCam Does Not Activate Until Lift Begins\u003c\/h4\u003e\n\u003cp\u003eThe gripping cam remains disengaged while the clamp rests on the plate edge, allowing easy positioning and repositioning before the lift. Once tension is applied to the load sling, the cam automatically activates, reducing premature engagement and making setup faster.\u003c\/p\u003e\n\u003ch4\u003eLow-Maintenance Design with Fewer Components\u003c\/h4\u003e\n\u003cp\u003eThe simplified internal design means fewer parts that can wear, corrode, or require replacement over time. For contractors running high-volume steel plate operations, reduced maintenance intervals translate directly to lower total cost of ownership.\u003c\/p\u003e\n\u003ch4\u003eMultiple Configuration Support\u003c\/h4\u003e\n\u003cp\u003eThe LHC is rated and designed for use in single pairs (2 clamps), double pairs (4 clamps), or tripod (3 clamps) arrangements with a lifting sling. This flexibility allows riggers to match the clamp configuration to the plate size and load distribution requirements of each specific lift.\u003c\/p\u003e\n\u003ch4\u003eStable Pre-Lift Positioning\u003c\/h4\u003e\n\u003cp\u003eClamps rest securely in position on the edge of the plate before tension is applied, allowing the rigging crew to verify placement and sling geometry before committing to the lift. This feature supports safer lift planning and reduces the chance of repositioning under load.\u003c\/p\u003e\n\u003ch4\u003eCompact, Defined Dimensional Profile\u003c\/h4\u003e\n\u003cp\u003eWith an overall length of 4 inches and overall width of 2.25 inches, the LHC fits cleanly on thinner steel plates up to 1 inch thick without interfering with adjacent clamps or rigging hardware. The defined bail geometry (1-inch oblong diameter, 0.5-inch bail thickness) ensures compatibility with standard shackles and sling hardware.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eSteel Plate Transport on Job Sites\u003c\/h4\u003e\n\u003cp\u003eUsed to lift and move individual steel plates horizontally from storage areas to installation locations on construction and fabrication sites.\u003c\/p\u003e\n\u003ch4\u003eSteel Service Center Operations\u003c\/h4\u003e\n\u003cp\u003eDeployed in steel distribution facilities for loading and unloading flat plate stock from trucks, racks, and processing equipment.\u003c\/p\u003e\n\u003ch4\u003eMetal Fabrication Shops\u003c\/h4\u003e\n\u003cp\u003eUsed to position steel plate blanks onto cutting tables, press brakes, or welding fixtures where horizontal orientation must be maintained throughout the move.\u003c\/p\u003e\n\u003ch4\u003eStructural Steel Erection\u003c\/h4\u003e\n\u003cp\u003eAssists in placing base plates, connection plates, and gusset plates during structural steel assembly where horizontal control is required.\u003c\/p\u003e\n\u003ch4\u003eShipbuilding and Heavy Industrial Manufacturing\u003c\/h4\u003e\n\u003cp\u003eApplied in environments where flat steel sections must be transported horizontally between workstations or staging areas without vertical tipping.\u003c\/p\u003e\n\u003ch4\u003eMaintenance and Equipment Repair\u003c\/h4\u003e\n\u003cp\u003eUsed to move heavy steel cover plates, access panels, or machinery base plates during equipment installation or scheduled maintenance outages.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural steel plate\u003c\/li\u003e\n\u003cli\u003eCarbon steel flat stock\u003c\/li\u003e\n\u003cli\u003eMild steel sheet and plate\u003c\/li\u003e\n\u003cli\u003eSteel blanks and cut-to-size plate sections\u003c\/li\u003e\n\u003cli\u003eSteel base plates and connection plates\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20362.pdf?v=1785180434\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_d6a49be6-a77b-4022-b80c-6ab021b0b815.pdf?v=1785180434\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_0313a7eb-03c6-4006-b16d-8d90a503bc75.pdf?v=1785180434\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_756b4991-ec83-47d8-9486-c8456a92d2a7.pdf?v=1785180434\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_e68cf0fe-927d-4346-a791-08a789959fb1.pdf?v=1785180434\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eStage 1: Pre-Lift Inspection\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eInspect each clamp for visible damage, wear to the serrated cam, and integrity of the bail and bail pin before use.\u003c\/li\u003e\n\u003cli\u003eVerify that the cam moves freely and that all components are clean and free of debris.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness is within the 0–1 inch capacity range of the LHC-00.25-A model.\u003c\/li\u003e\n\u003cli\u003eConfirm the total load does not exceed the rated capacity of the clamp configuration being used.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 2: Clamp Placement\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003ePosition clamps on opposite edges of the steel plate according to the required configuration: single pair (2), double pair (4), or tripod (3).\u003c\/li\u003e\n\u003cli\u003eRest each clamp in position on the plate edge — the cam will not activate at this stage.\u003c\/li\u003e\n\u003cli\u003eAttach the lifting sling to the bail of each clamp, ensuring correct shackle or sling hardware sizing for the 1-inch bail oblong diameter.\u003c\/li\u003e\n\u003cli\u003eVerify sling geometry and load balance before applying tension.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 3: Performing the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eApply slow, controlled upward tension to the lifting sling to engage the gripping cam on each clamp.\u003c\/li\u003e\n\u003cli\u003eConfirm all clamps have engaged and the load is balanced before lifting clear of the support surface.\u003c\/li\u003e\n\u003cli\u003eTransport the plate horizontally to the destination, maintaining the horizontal orientation throughout the move.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 4: Release and Post-Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eLower the plate to its destination surface and relieve tension from the sling to release the cam engagement.\u003c\/li\u003e\n\u003cli\u003eRemove clamps from the plate edge once fully de-tensioned.\u003c\/li\u003e\n\u003cli\u003eInspect clamps after use and record condition using the Lifting Tool Inventory and Maintenance Form.\u003c\/li\u003e\n\u003cli\u003eStore clamps in a clean, dry location protected from corrosion.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLHC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU \/ Part Number\u003c\/td\u003e\n\u003ctd\u003eLHC-00.25-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHorizontal Lifting Clamp, Non-Locking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.25 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA – Maximum Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e1 in. (0–1 in. range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB – Foot Length\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC – Cam Length\u003c\/td\u003e\n\u003ctd\u003e5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD – Bail Oblong Diameter\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE – Bail Thickness\u003c\/td\u003e\n\u003ctd\u003e0.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF – Overall Width\u003c\/td\u003e\n\u003ctd\u003e2.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG – Overall Length\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH – Footer Thickness\u003c\/td\u003e\n\u003ctd\u003e0.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Mechanism\u003c\/td\u003e\n\u003ctd\u003eSerrated gripping cam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage Configuration\u003c\/td\u003e\n\u003ctd\u003eSingle pairs (2), double pairs (4), or tripod (3) with lifting sling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrientation\u003c\/td\u003e\n\u003ctd\u003eHorizontal only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Contact\u003c\/td\u003e\n\u003ctd\u003e800.628.4263 \/ 815.229.5667\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Address\u003c\/td\u003e\n\u003ctd\u003e200 State Street, Beloit, WI 53511\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model LHC be used to lift steel plates vertically?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model LHC is rated and designed exclusively for horizontal lifting. Using this clamp in a vertical orientation is outside its intended application and creates a serious safety hazard. Use a vertical plate clamp for vertical lifts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many clamps are required for a lift?\u003c\/strong\u003e\u003cbr\u003eA: The LHC must be used in a minimum configuration of a single pair (2 clamps). Approved configurations are: single pairs (2), double pairs (4), or tripod arrangement (3), always used in conjunction with a lifting sling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the cam engage automatically when I place the clamp on the plate?\u003c\/strong\u003e\u003cbr\u003eA: No. The gripping cam does not activate until upward tension is applied to the load sling. This allows the operator to rest the clamp on the plate edge and adjust positioning freely before the lift begins.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this model can handle?\u003c\/strong\u003e\u003cbr\u003eA: The LHC-00.25-A handles plate thicknesses from 0 to 1 inch. For thicker plates, Caldwell offers higher-capacity LHC models with maximum plate thicknesses up to 3 inches (LHC-04.00-A).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How should I maintain and inspect the Model LHC?\u003c\/strong\u003e\u003cbr\u003eA: Caldwell provides a Lifting Tool Inventory and Maintenance Form and a Lifting Clamp Survey Report to assist with tracking inspection and service history. Refer to the Minimum Recommended Clamp Inspections document for inspection intervals. The low-maintenance design with fewer components reduces the frequency of required service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are repair kits available for the Model LHC?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Caldwell offers repair kits for their lifting clamp product line. Refer to the Renfroe Repair Kits Catalog linked in the Product Documents section above for compatible parts and kit options.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"0.25","offer_id":48565919416494,"sku":"LHC-00.25-A","price":412.0,"currency_code":"USD","in_stock":true},{"title":"0.75","offer_id":48565919449262,"sku":"LHC-00.75-A","price":607.0,"currency_code":"USD","in_stock":true},{"title":"3.00","offer_id":48565919482030,"sku":"LHC-03.00-A","price":818.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_LHC_Silo_1-1280x1280-1280x1280.webp?v=1785180439"},{"product_id":"caldwell-beam-clamp-locking-type","title":"Caldwell Beam Clamp Locking Type","description":"\u003ch2\u003eBeam Clamp Locking Type – Multi-Purpose Lifting \u0026amp; Suspension for Structural Beams\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model BC is a locking-type beam clamp engineered for both lifting beams and suspending hoists from beams or girders. Rated at 1.5 vertical tons at 0°–20°, it is designed specifically for use on American standard and wide-flange beams with flange widths from 3 in. to 7.25 in. and flange thicknesses from 0.25 in. to 0.5 in. This clamp is well-suited for contractors and rigging professionals who need a reliable, hardware-free attachment point on structural steel.\u003c\/p\u003e\n\u003cp\u003eUnlike fixed-point rigging methods that require nuts, bolts, and separate shackles, the Model BC provides a self-contained locking attachment that simplifies setup and reduces the number of components required on the job site. Its locking mechanism must be engaged before any lift, providing a positive means of securing the clamp to the beam flange prior to loading.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003eLocking Clamp Design\u003c\/h4\u003e\n\u003cp\u003eThe Model BC uses a positive locking mechanism that must be engaged prior to lifting, ensuring the clamp cannot inadvertently release during a lift. This locking feature is a critical safety requirement — contractors must confirm the clamp is locked before any load is applied.\u003c\/p\u003e\n\n\u003ch4\u003eEliminates Nuts, Bolts, and Shackles\u003c\/h4\u003e\n\u003cp\u003eThe Model BC is designed to attach directly to a beam flange without requiring additional hardware such as nuts, bolts, or separate shackles. This reduces rigging time and the number of loose components a crew needs to manage on site.\u003c\/p\u003e\n\n\u003ch4\u003eDual-Purpose: Lifting and Suspension\u003c\/h4\u003e\n\u003cp\u003eThe clamp is suitable for two distinct applications — lifting beams as part of a rigging operation, and suspending hoists or other equipment from beams or girders. This versatility allows a single clamp model to serve multiple roles across a project.\u003c\/p\u003e\n\n\u003ch4\u003eWide Flange Compatibility Range\u003c\/h4\u003e\n\u003cp\u003eWith an adjustable range covering flange widths from 3 in. to 7.25 in. and thicknesses from 0.25 in. to 0.5 in., the Model BC accommodates a broad variety of American standard and wide-flange beam sizes commonly found on commercial and industrial job sites.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eBeam Lifting\u003c\/h4\u003e\n\u003cp\u003eThe Model BC attaches directly to the flange of a structural beam, allowing the beam to be lifted and positioned during steel erection or structural framing operations.\u003c\/p\u003e\n\n\u003ch4\u003eHoist Suspension from Beams or Girders\u003c\/h4\u003e\n\u003cp\u003eThe clamp can be used to suspend hoists from an existing beam or girder, providing a temporary overhead lifting point without the need to drill, bolt, or otherwise modify the structure.\u003c\/p\u003e\n\n\u003ch4\u003eTemporary Overhead Rigging Points\u003c\/h4\u003e\n\u003cp\u003eWhere a permanent lifting lug or anchor is not present, the Model BC provides a quick-attach rigging point on structural steel for use with compatible rigging equipment.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAmerican standard steel beams\u003c\/li\u003e\n\u003cli\u003eWide-flange steel beams\u003c\/li\u003e\n\u003cli\u003eSteel girders (for suspension applications)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20383.pdf?v=1785183018\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/51_BC_205.18.12.pdf?v=1785183018\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_36e90eac-9060-4f95-bbdf-f66d6996623c.pdf?v=1785183018\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual (OM 211-BC) before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift per the pre-lift inspection procedures outlined in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eConfirm the clamp is the correct model and capacity for the intended load. Do not use large-capacity clamps to lift light loads, and do not exceed rated capacity.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAttachment\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003ePosition the clamp jaws onto the beam flange, ensuring the flange width and thickness fall within the clamp's rated range (3–7.25 in. width; 0.25–0.5 in. thickness).\u003c\/li\u003e\n\u003cli\u003eEngage and lock the clamp closed before applying any load. Do not lift with the lock in the open or \"Lock Open\" position.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane and the clamp shackle. Do not attach the clamp directly to a crane hook, and do not use a heavy flexible connection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eDuring the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eUse an adequate number of clamps to balance the load. Do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eUse clamps only within their rated capacity. Do not overload.\u003c\/li\u003e\n\u003cli\u003eDo not use a clamp that has previously been overloaded.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLocking Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Load Limit (0°–20°)\u003c\/td\u003e\n\u003ctd\u003e1.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Flange Width\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Flange Width\u003c\/td\u003e\n\u003ctd\u003e7.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Flange Thickness\u003c\/td\u003e\n\u003ctd\u003e0.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Flange Thickness\u003c\/td\u003e\n\u003ctd\u003e0.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e11.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length\u003c\/td\u003e\n\u003ctd\u003e11.88 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e9.5 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam Compatibility\u003c\/td\u003e\n\u003ctd\u003eAmerican standard or wide-flange beams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eLock the clamp closed before every lift. Never lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to a crane hook — always use a flexible connection between the crane and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel at any time.\u003c\/li\u003e\n\u003cli\u003eDo not overload the clamp beyond its rated Working Load Limit of 1.5 tons at 0°–20°.\u003c\/li\u003e\n\u003cli\u003eDo not use a clamp that has been overloaded — refer to pre-lift inspection procedures in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eAlways use the correct clamp for the job; do not improvise or substitute an incorrect model.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eUse only Renfroe replacement parts to ensure proper clamp operation.\u003c\/li\u003e\n\u003cli\u003eBefore putting the tool into service, bring it to your immediate supervisor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model BC be used for both lifting beams and suspending hoists?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model BC is specifically designed as a multi-purpose clamp suitable for both lifting beams and providing suspension of hoists from beams or girders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What beam types is the Model BC compatible with?\u003c\/strong\u003e\u003cbr\u003eA: The Model BC is intended for use on American standard and wide-flange steel beams with flange widths between 3 in. and 7.25 in. and flange thicknesses between 0.25 in. and 0.5 in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the Model BC require additional hardware such as nuts, bolts, or shackles for attachment?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model BC is designed to eliminate the need for nuts, bolts, and shackles when attaching to a beam flange.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the clamp be attached directly to a crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. Per operating instructions, a flexible connection must be used between the crane and the clamp shackle. The clamp should not be attached directly to a crane hook, and the connection should not be a heavy flexible connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is an operator's manual available for this product?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Application, Operation and Maintenance Manual (OM 211-BC) is available for download above. All operators should read and understand the manual before using the clamp.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"1.5","offer_id":48570511720622,"sku":"BC-01.50-A","price":741.0,"currency_code":"USD","in_stock":true},{"title":"3.0","offer_id":48570511753390,"sku":"BC-03.00-A","price":1125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_BC_Silo_1-1280x1280.webp?v=1785183022"},{"product_id":"caldwell-model-bd-non-locking-plate-lifting-clamp","title":"Caldwell Model BD Non-Locking Plate Lifting Clamp","description":"\u003ch2\u003eRenfroe Model BD Vertical Non-Locking Plate Lifting Clamp — Lightweight, Low-Cost Steel Handling\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model BD is a vertical-lift, non-locking plate clamp designed for steel warehousing and bench work applications where a locking-type clamp is not required. Rated at 0.5 tons capacity, the BD-00.50-A is engineered for operations where constant tension is maintained on the lifting shackle throughout the entire lift. It is manufactured by The Caldwell Group in Beloit, WI, and carries the trusted RENFROE brand name backed by more than 50 years of international lifting clamp use.\u003c\/p\u003e\n\u003cp\u003eUnlike locking-style clamps, the Model BD prioritizes affordability and simplicity for environments where load conditions remain controlled and constant shackle tension is ensured. Its compact, lightweight construction reduces operator fatigue and makes it well suited for repetitive steel handling tasks on the shop floor or in the yard.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003eNon-Locking Design for Constant-Tension Applications\u003c\/h4\u003e\n\u003cp\u003eThe Model BD is specifically engineered for use where constant tension is applied to the lifting shackle throughout the entire operation. This makes it the right tool for controlled warehouse and bench environments where a locking mechanism is unnecessary, reducing complexity and cost.\u003c\/p\u003e\n\n\u003ch4\u003eLightweight and Compact Construction\u003c\/h4\u003e\n\u003cp\u003eAt just 6 lbs. and with an overall length of 10.38 in., the Model BD is easy to handle and position during steel plate lifts. The compact size allows use in tighter workspaces where heavier or larger clamps would be impractical.\u003c\/p\u003e\n\n\u003ch4\u003eLow-Cost, Low-Maintenance Tool\u003c\/h4\u003e\n\u003cp\u003eThe Model BD is designed from the ground up as a budget-conscious tool with minimal maintenance requirements. For operations running high volumes of steel plate movement, this translates directly to lower total cost of ownership over time.\u003c\/p\u003e\n\n\u003ch4\u003eVertical-Only Lift Orientation\u003c\/h4\u003e\n\u003cp\u003eThe clamp is rated exclusively for vertical lifting, keeping its application envelope clearly defined and safe. Using a vertical-only clamp in its intended orientation ensures consistent, predictable gripping performance on steel plate.\u003c\/p\u003e\n\n\u003ch4\u003eAccepts Plates Up to 1 In. Thick\u003c\/h4\u003e\n\u003cp\u003eWith a maximum plate thickness capacity of 1 in., the BD-00.50-A handles a broad range of common steel plate stock found in warehousing and fabrication environments. The jaw opening accommodates plate without requiring tool adjustment between similar stock sizes.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eSteel Warehouse Plate Handling\u003c\/h4\u003e\n\u003cp\u003eThe Model BD is primarily used in steel warehouses for moving individual steel plates vertically. It is designed for environments where organized, controlled lifts are performed repeatedly throughout a shift.\u003c\/p\u003e\n\n\u003ch4\u003eBench Work and Fabrication Support\u003c\/h4\u003e\n\u003cp\u003eIn fabrication shops and bench work settings, the BD clamp enables operators to reposition steel plate efficiently without requiring a locking clamp. Constant tension from the rigging keeps the clamp engaged throughout the operation.\u003c\/p\u003e\n\n\u003ch4\u003eSingle-Plate Vertical Lifts\u003c\/h4\u003e\n\u003cp\u003eThe Model BD is intended for lifting one plate at a time in a vertical orientation. It should not be used to lift plate horizontally or to lift from the bottom of a plate stack.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (flat stock)\u003c\/li\u003e\n\u003cli\u003eSteel members suitable for vertical plate clamp engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20331.pdf?v=1785242161\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Renfroe_20OM211-BD_20061224_20WEB.pdf?v=1785242161\" target=\"_blank\" rel=\"noopener\"\u003eDownload Operator's Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_4e826fb7-39e5-444b-8218-17a30ad0437c.pdf?v=1785242161\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_dfeeed03-fdf3-4289-acb5-e93bb65524e4.pdf?v=1785242160\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_d9b26df3-63c6-4d85-b642-82bd9e8a8020.pdf?v=1785242161\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_665cee4d-5702-4526-ac4e-2a2918297461.pdf?v=1785242165\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the full Operator's Manual before putting the clamp into service. Bring the manual to your supervisor prior to first use.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift. Follow all inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness is within the rated range (0 – 1 in.) for the BD-00.50-A.\u003c\/li\u003e\n\u003cli\u003eConfirm the load does not exceed the rated capacity of 0.5 tons.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle. Do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eDuring the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eEnsure constant tension is applied to the lifting shackle throughout the entire operation. This clamp is non-locking and relies on continuous tension to maintain grip.\u003c\/li\u003e\n\u003cli\u003eLift only a single plate at a time. Do not lift more than one plate at a time with this vertical clamp.\u003c\/li\u003e\n\u003cli\u003eLift in a vertical orientation only. Do not lift plate horizontally with this vertical-lift-only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not side-load the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load. Do not lift loads that are not balanced.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eMaintenance\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eFollow the inspection and maintenance schedule outlined in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eUse only genuine RENFROE replacement parts to ensure proper operation of the clamp. Do not substitute non-OEM components.\u003c\/li\u003e\n\u003cli\u003eDo not grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eUse the Lifting Clamp Survey Report and Lifting Tool Inventory and Maintenance Form to track clamp condition and service history.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU \/ Part Number\u003c\/td\u003e\n\u003ctd\u003eBD-00.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Type\u003c\/td\u003e\n\u003ctd\u003eNon-locking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift Orientation\u003c\/td\u003e\n\u003ctd\u003eVertical only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e1.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e4.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length\u003c\/td\u003e\n\u003ctd\u003e6.31 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e1.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2.56 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e10.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model BD be used to lift plate horizontally?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model BD is rated for vertical lifting only. Using a vertical-lift-only clamp to lift plate horizontally is explicitly prohibited per the Operator's Manual.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does the Model BD lock closed when not under tension?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model BD is a non-locking clamp. It is designed for applications where constant tension is maintained on the lifting shackle throughout the entire operation. If constant tension cannot be guaranteed during a lift, a locking-type clamp should be used instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I lift more than one plate at a time with the Model BD?\u003c\/strong\u003e\u003cbr\u003eA: No. The Operator's Manual specifically prohibits lifting more than one plate at a time with a vertical clamp.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I attach the Model BD directly to the crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. A flexible connection must be used between the crane hook and the clamp shackle. Do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What replacement parts should be used with the Model BD?\u003c\/strong\u003e\u003cbr\u003eA: Only genuine RENFROE replacement parts should be used to ensure proper operation. The Renfroe Repair Kits Catalog is available for download above. Do not modify, grind, or weld the clamp.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"0.5","offer_id":48630943875246,"sku":"BD-00.50-A","price":597.0,"currency_code":"USD","in_stock":true},{"title":"1.0","offer_id":48630943908014,"sku":"BD-01.00-A","price":745.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_BD_Silo_1-1280x1280.webp?v=1785242169"},{"product_id":"caldwell-model-fr-vertical-locking-plate-lifting-clamp","title":"Caldwell Model FR Vertical Locking Plate Lifting Clamp","description":"\u003ch2\u003eVertical Locking Plate Lifting Clamp – Model FR for Reliable Light-Duty Vertical Lifts\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell Renfroe Model FR is a vertical-only lifting clamp designed for relatively light lifting work, rated at 0.5 tons capacity for this configuration. Built compact and easy to handle, it is suited for contractors and trades professionals who need a dependable, low-profile clamp for vertical plate lifts across a range of jobsite and industrial applications. The Model FR is available in capacities through three tons, making it a versatile choice for light-to-medium plate handling tasks.\u003c\/p\u003e\n\u003cp\u003eWhat sets the Model FR apart is its integrated \"Lock Closed\" feature, which keeps the lock assembly housed inside the clamp body — out of the way during operation — while allowing the operator to securely attach and remove the clamp from the plate with ease. This design reduces fumbling on the job and supports safer, more efficient rigging compared to clamps without a dedicated lock mechanism.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003eLock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe Model FR incorporates a \"Lock Closed\" locking mechanism that facilitates attaching and removing the clamp to and from the plate. The lock assembly is housed inside the clamp body to keep it out of the way during lifts, reducing snagging hazards and maintaining a clean working profile.\u003c\/p\u003e\n\u003ch4\u003eCompact, Lightweight Construction\u003c\/h4\u003e\n\u003cp\u003eAt 8 lbs. and a clamp height of just 4.62 in., the Model FR is small and easy to handle in the field. Its manageable size reduces operator fatigue during repeated attach-and-detach cycles on light plate work.\u003c\/p\u003e\n\u003ch4\u003eVertical-Only Lift Design\u003c\/h4\u003e\n\u003cp\u003eThe Model FR is specifically engineered for vertical lifting, where the lifting force is directly above and in line with the lifting shackle. This dedicated geometry ensures predictable load behavior and safe single-plate lifting in vertical orientation.\u003c\/p\u003e\n\u003ch4\u003eSwivel Jaw and Cam Assembly\u003c\/h4\u003e\n\u003cp\u003eThe clamp incorporates a swivel jaw and cam assembly, allowing the jaw to seat firmly against varying plate surfaces within its rated plate thickness range. This self-adjusting grip action helps maintain secure contact with the plate throughout the lift.\u003c\/p\u003e\n\u003ch4\u003eCapacity Range Through 3 Tons\u003c\/h4\u003e\n\u003cp\u003eWhile this listing covers the 0.5-ton model, the FR series scales through three tons of capacity with consistent design principles. Contractors can select the appropriate capacity model for their plate weight without switching to an entirely different clamp family.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eVertical Steel Plate Lifting\u003c\/h4\u003e\n\u003cp\u003eThe Model FR is purpose-built for lifting a single steel plate in vertical orientation, where the rigging pulls directly upward through the lifting shackle. It is not intended for horizontal plate lifts.\u003c\/p\u003e\n\u003ch4\u003eLight Fabrication and Shop Work\u003c\/h4\u003e\n\u003cp\u003eThe compact size and 0.5-ton rating make the FR well suited for light fabrication environments where plates need to be repositioned, staged, or moved without heavy rigging equipment.\u003c\/p\u003e\n\u003ch4\u003eStructural Steel Handling on Jobsites\u003c\/h4\u003e\n\u003cp\u003eContractors handling lighter structural steel plates during construction can use the Model FR to efficiently attach, lift, and position individual members in vertical orientation.\u003c\/p\u003e\n\u003ch4\u003eMaterial Staging and Positioning\u003c\/h4\u003e\n\u003cp\u003eThe Lock Closed feature allows operators to pre-attach the clamp to a plate before connecting the rigging, supporting organized, controlled material staging workflows on active jobsites.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (up to 0.75 in. maximum thickness for this model)\u003c\/li\u003e\n\u003cli\u003eFlat plate and structural steel members suitable for vertical lifting\u003c\/li\u003e\n\u003cli\u003eSingle plate only — not for use lifting multiple plates simultaneously\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20330.pdf?v=1785244542\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Renfroe_20OM211-FR_20041224_20WEB.pdf?v=1785244543\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_8ae15e84-048b-4c39-8818-391489942834.pdf?v=1785244542\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_55aa153e-857f-46a1-b540-35336738c76a.pdf?v=1785244542\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_97c2600f-0d5b-4d6b-a801-6824a271e68e.pdf?v=1785244542\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_009e962f-fd50-4d91-8e90-ff56d68f197e.pdf?v=1785244547\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eBefore Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the manual.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness is within the rated range for this model (0 – 0.75 in. max plate thickness).\u003c\/li\u003e\n\u003cli\u003eConfirm the load does not exceed the 0.5-ton rated capacity of this clamp.\u003c\/li\u003e\n\u003cli\u003eUse the correct capacity clamp for the job — do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eUse the Lock Closed feature to lock the clamp open, then position it onto the plate edge.\u003c\/li\u003e\n\u003cli\u003eEngage the cam assembly onto the plate and release the lock to allow the clamp to grip the plate.\u003c\/li\u003e\n\u003cli\u003eConfirm the lock is in the closed (locked) position before lifting — do not lift with the lock in the open position.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eLifting\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eLift only a single plate at a time — do not lift multiple plates simultaneously with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift horizontally with this vertical-lift-only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not side load with this straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load — do not lift loads that are not balanced.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eAfter Use and Maintenance\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eInspect the clamp after each use and follow maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eUse only genuine Renfroe replacement parts to assure proper operation of the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eClamps rated beyond repair (X condition) must be discarded — refer to the Lifting Clamp Survey Report for condition rating guidance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFR – Locking Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e4.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length\u003c\/td\u003e\n\u003ctd\u003e7 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e1.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2.81 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e11.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock Feature\u003c\/td\u003e\n\u003ctd\u003eLock Closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift Type\u003c\/td\u003e\n\u003ctd\u003eVertical Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eIn Stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model FR be used to lift plate horizontally?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model FR is a vertical-only lifting clamp. It must not be used to lift plate horizontally.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I lift more than one plate at a time with the Model FR?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model FR is intended to lift only a single plate at a time. Lifting multiple plates simultaneously with a vertical clamp is not permitted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the Lock Closed feature do?\u003c\/strong\u003e\u003cbr\u003eA: The Lock Closed feature allows the operator to lock the clamp in the open position for easy attachment to the plate edge. The lock assembly is housed inside the clamp body to keep it out of the way during the lift. The clamp must always be locked closed before lifting — do not lift with the lock in the open position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I attach the clamp directly to the crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. A flexible connection must be used between the crane hook and the clamp shackle. Do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the Model FR available in higher capacities?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model FR series is available in capacities through 3 tons. Consult the catalog or the factory for larger capacity options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I modify the clamp to suit a specific application?\u003c\/strong\u003e\u003cbr\u003eA: No. The clamp must not be altered, ground, welded, or modified in any manner. Use only genuine Renfroe replacement parts to maintain proper operation.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"2","offer_id":48631040278702,"sku":"FR-02.00-A","price":1023.0,"currency_code":"USD","in_stock":true},{"title":"3","offer_id":48631040311470,"sku":"FR-03.00-A","price":1117.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_FR_Silo_1-1280x1280-1280x1280.webp?v=1785244551"},{"product_id":"caldwell-model-j-vertical-lifting-clamp-locking-type","title":"Caldwell Model J Vertical Lifting Clamp – Locking Type","description":"\u003ch2\u003eRenfroe Model J Vertical Lifting Clamp – Locking Type for Single Plate Turning\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model J is a vertical lifting clamp engineered to turn a single plate or member from horizontal to vertical and back to horizontal through the same 90° arc. Designed for contractors and rigging professionals who need reliable, repeatable plate handling on the job site or in a fabrication environment, the Model J delivers a 0.5-ton capacity in a compact, rugged package. Manufactured by The Caldwell Group in Rockford, IL, the Model J is part of the trusted RENFROE product line that has been the industry standard for vertical plate lifting for more than 50 years.\u003c\/p\u003e\n\u003cp\u003eWhat sets the Model J apart from basic vertical lifting clamps is its integrated Lock Open – Lock Closed feature and its round swivel jaw design. While standard clamps lack a positive locking mechanism, the Model J locks positively in both the open and closed positions, allowing safe, controlled attachment and removal even in demanding field conditions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003e90° Arc Plate Turning Capability\u003c\/h4\u003e\n\u003cp\u003eThe Model J is purpose-built to turn a single plate or member from horizontal to vertical and back to horizontal through the same 90° arc. This eliminates the need for manual repositioning of the load mid-lift, saving time and reducing handling risk on structural steel and plate work.\u003c\/p\u003e\n\n\u003ch4\u003eLock Open – Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe integrated Lock Open – Lock Closed mechanism allows the clamp to be positively secured in both the open and closed positions. This makes attaching and removing the clamp faster and safer, preventing accidental jaw movement during placement or release.\u003c\/p\u003e\n\n\u003ch4\u003eRound Swivel Jaw Design\u003c\/h4\u003e\n\u003cp\u003eThe round swivel jaw clamp pivots when the lift is bumpy or uneven, preventing the plate from walking off the clamp during the lift. This self-adjusting feature is critical when working in environments where crane movement or load swing is unavoidable.\u003c\/p\u003e\n\n\u003ch4\u003eProven Rugged Construction\u003c\/h4\u003e\n\u003cp\u003eThe Model J is recognized as the industry standard for vertical plate lifting clamps, reflecting decades of real-world performance across heavy construction, steel fabrication, and rigging applications. Its robust body construction is designed to withstand the repeated stress of production lifting environments.\u003c\/p\u003e\n\n\u003ch4\u003eCompact and Lightweight Profile\u003c\/h4\u003e\n\u003cp\u003eAt 10 lbs with an overall length of 12 inches, the Model J is easy to handle, attach, and transport without adding significant overhead to the rigging setup. The compact clamp body dimensions (5.62 in. H × 6.5 in. L × 3.25 in. W) allow it to work in tighter clearance conditions than larger capacity alternatives.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eStructural Steel Plate Turning\u003c\/h4\u003e\n\u003cp\u003eThe Model J is used to rotate flat steel plates from a horizontal storage or staging position to a vertical orientation for welding, fitting, or placement, and back again through the same 90° arc.\u003c\/p\u003e\n\n\u003ch4\u003eSingle Member Handling\u003c\/h4\u003e\n\u003cp\u003eIdeal for lifting and repositioning a single structural member or plate where load control and consistent grip are required throughout the turn cycle.\u003c\/p\u003e\n\n\u003ch4\u003eSteel Fabrication Shops\u003c\/h4\u003e\n\u003cp\u003eUsed in fabrication environments where plates must be repeatedly turned and oriented for welding or machining operations, the locking feature speeds up clamp attachment and removal between lifts.\u003c\/p\u003e\n\n\u003ch4\u003eConstruction Site Rigging\u003c\/h4\u003e\n\u003cp\u003eSuitable for field rigging operations where plates or members need to be set vertically from flat delivery or staging positions, with the swivel jaw providing compensation for imperfect crane alignment.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (flat)\u003c\/li\u003e\n\u003cli\u003eStructural steel members\u003c\/li\u003e\n\u003cli\u003eSingle plates up to 0.62 in. thickness (for this model variant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20334-335.pdf?v=1785245626\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM0820-J-Series.pdf?v=1785245626\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_2d3f8041-a50a-4d9c-8917-2177cd22201b.pdf?v=1785245626\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_9a4db30b-ccad-4e59-95ab-f65bfcf627a8.pdf?v=1785245626\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_78753aba-0670-49eb-9789-2022ea2049b2.pdf?v=1785245626\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_21d875d4-d184-4ca4-a506-55a06b79966d.pdf?v=1785245631\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the manual.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eVerify the clamp model and capacity are correct for the load — do not use large capacity clamps to lift light loads, and do not exceed rated capacity.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle. Do not attach the clamp directly to a crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse the Lock Open feature to hold the jaw open while attaching the clamp to the plate edge.\u003c\/li\u003e\n\u003cli\u003eVerify the plate thickness falls within the clamp's rated range (0 to 0.62 in. for this model variant).\u003c\/li\u003e\n\u003cli\u003eEngage the Lock Closed feature to positively lock the jaw closed before initiating the lift.\u003c\/li\u003e\n\u003cli\u003eDo not lift with the lock in the open position.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eDuring the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eLift only a single plate at a time — do not lift more than one plate simultaneously with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the edge of the plate opposite the clamped edge should remain in contact with a supporting surface (such as a factory floor) and the load on the clamp must not exceed one half the rated capacity during the turn.\u003c\/li\u003e\n\u003cli\u003eDo not rush the turning operation.\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load — do not lift loads that are not balanced.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAfter the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse the Lock Open feature to safely release the clamp from the plate after the load is secured.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp after use and follow maintenance instructions. Record condition using the Lifting Clamp Survey Report.\u003c\/li\u003e\n\u003cli\u003eUse only genuine RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eJ (Locking Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Height\u003c\/td\u003e\n\u003ctd\u003e5.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e6.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Width\u003c\/td\u003e\n\u003ctd\u003e3.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e2.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e12 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Open\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation\u003c\/td\u003e\n\u003ctd\u003e90° arc (horizontal to vertical and back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock Feature\u003c\/td\u003e\n\u003ctd\u003eLock Open – Lock Closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc. (RENFROE brand)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\n\u003ch4\u003eHazard Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to a crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eDo not overload the clamp beyond its rated capacity.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with a vertical lift only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not misuse the clamp (e.g., do not lift plate from the bottom of a plate stack).\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow inspection and maintenance instructions.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job and within its rated capacity.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eUse only genuine RENFROE replacement parts.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, keep the opposite plate edge in contact with a supporting surface and do not exceed one half rated capacity on the clamp during the turn.\u003c\/li\u003e\n\u003cli\u003eConsult the Operator's Manual or RENFROE when in doubt.\u003c\/li\u003e\n\u003cli\u003eConsider attending a RENFROE factory training class to establish proper clamp use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model J turn a plate both from horizontal to vertical and from vertical back to horizontal?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model J is specifically designed to turn a single plate or member from horizontal to vertical and back to horizontal through the same 90° arc.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this model handles?\u003c\/strong\u003e\u003cbr\u003eA: The 0.5-ton Model J (part number J-00.50-A) accepts plate thickness from 0 to 0.62 in. Other plate thickness ranges are available in alternative part numbers within the same capacity tier.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What does the Lock Open – Lock Closed feature do?\u003c\/strong\u003e\u003cbr\u003eA: The lock holds the jaw positively in both the open and closed positions. Lock Open allows easy attachment and removal of the clamp from the plate. Lock Closed secures the jaw during the lift. The clamp must never be lifted with the lock in the open position.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I attach the Model J directly to a crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. The Operator's Manual specifies that a flexible connection must be used between the crane hook and the clamp shackle. Direct attachment to a crane hook is not permitted.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model J lift more than one plate at a time?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model J is a vertical clamp rated for lifting a single plate at a time. Lifting more than one plate simultaneously is not permitted.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are replacement parts available for the Model J?\u003c\/strong\u003e\u003cbr\u003eA: Yes. RENFROE offers genuine replacement parts including components such as the lock assembly, cam assembly, swivel jaw, shackle, and associated pins and springs. Only genuine RENFROE replacement parts should be used to ensure proper operation. See the Renfroe Repair Kits Catalog linked above.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48631298293934,"sku":"J-01.00-A","price":1043.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_J_Silo_1-1280x1280-1280x1280.webp?v=1785245635"},{"product_id":"caldwell-model-l-vertical-locking-lifting-clamp","title":"Caldwell Model L Vertical Locking Lifting Clamp","description":"\u003ch2\u003eVertical Locking Lifting Clamp – Ergonomic 90° Plate Turning for Steel Fabrication\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model L is an ergonomic vertical locking lifting clamp designed for turning a single plate or structural member from horizontal to vertical and back to horizontal through the same 90° arc. Rated at 0.5 tons capacity, it is purpose-built for contractors and steel fabricators who need precise, controlled plate handling on the job site or in the shop. The clamp is manufactured by The Caldwell Group in Rockford, IL, under the trusted RENFROE brand, which has served international lifting clamp users for more than 50 years.\u003c\/p\u003e\n\u003cp\u003eThe Model L is a lighter-duty, more ergonomic alternative to the Model J, making it the preferred choice when ease of handling and operator comfort are priorities without sacrificing reliable vertical lifting performance. The \"Lock Open – Lock Closed\" locking feature sets it apart by making attachment and removal from the plate straightforward and secure.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003eLock Open – Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe integrated locking mechanism allows the clamp to be positively locked in both the open and closed positions. This means the clamp stays open for easy placement onto the plate and locks closed before the lift begins, reducing the risk of accidental disengagement during operation.\u003c\/p\u003e\n\u003ch4\u003e90° Rotation Arc for Plate Turning\u003c\/h4\u003e\n\u003cp\u003eThe Model L is specifically designed to turn a single plate or member from horizontal to vertical and back through the same 90° arc. This capability is essential in steel fabrication and structural assembly workflows where plates must be repositioned without additional rigging setups.\u003c\/p\u003e\n\u003ch4\u003eErgonomic Design\u003c\/h4\u003e\n\u003cp\u003eWeighing just 4.8 lbs, the Model L is designed with operator ergonomics in mind. Its compact and lightweight construction reduces fatigue during repeated attachment and removal cycles, improving productivity over the course of a workday.\u003c\/p\u003e\n\u003ch4\u003eSingle Plate Lifting\u003c\/h4\u003e\n\u003cp\u003eThe Model L is rated and designed for lifting one plate at a time, ensuring load integrity and safe operation. This design prevents the accidental lifting of multiple plates, which is a critical safety consideration in vertical clamp applications.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003ePlate Turning in Steel Fabrication\u003c\/h4\u003e\n\u003cp\u003eThe Model L excels at turning individual steel plates from horizontal to vertical orientation, a routine requirement in structural steel fabrication shops and on construction sites.\u003c\/p\u003e\n\u003ch4\u003eVertical Lifting of Structural Members\u003c\/h4\u003e\n\u003cp\u003eThe clamp is suited for lifting single plates or structural members vertically when the rigging force is directly above and in line with the lifting shackle.\u003c\/p\u003e\n\u003ch4\u003eRepositioning Plates During Assembly\u003c\/h4\u003e\n\u003cp\u003eWhen steel members need to be repositioned or flipped during structural assembly, the Model L provides a controlled, secure grip for safe repositioning through its 90° arc.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle steel plates\u003c\/li\u003e\n\u003cli\u003eSingle structural steel members\u003c\/li\u003e\n\u003cli\u003eFlat plate stock (0 in. to 0.63 in. thickness range)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20336.pdf?v=1785246943\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM-L-Series.pdf?v=1785246945\" target=\"_blank\" rel=\"noopener\"\u003eDownload Operator's Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_9b53d86b-e2f0-491e-af89-e12d18bfc566.pdf?v=1785246943\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_96122c9e-0c70-40c2-b933-f7d650c1d1f1.pdf?v=1785246943\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_6fa6d15f-6239-46b6-8c82-d90736579f8b.pdf?v=1785246943\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_afafe42d-6b39-4b4b-a10c-4b5fc93e3316.pdf?v=1785246949\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eStage 1: Pre-Lift Inspection\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the manual.\u003c\/li\u003e\n\u003cli\u003eVerify the plate thickness is within the rated range (0 in. to 0.63 in.) for the 0.5-ton Model L.\u003c\/li\u003e\n\u003cli\u003eConfirm the load does not exceed the 0.5-ton rated capacity.\u003c\/li\u003e\n\u003cli\u003eEnsure the load is secured before attaching the clamp.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 2: Attaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse the Lock Open feature to hold the clamp open for placement onto the plate edge.\u003c\/li\u003e\n\u003cli\u003ePosition the clamp on a single plate only — do not lift from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eOnce seated on the plate, engage the Lock Closed feature to secure the clamp before lifting.\u003c\/li\u003e\n\u003cli\u003eDo not lift with the lock in the open position.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 3: Rigging and Lifting\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eEnsure the lifting force is directly above and in line with the lifting shackle for a vertical lift.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 4: Plate Turning Operation\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eDuring turning, ensure the edge of the plate opposite the clamped edge remains in contact with a supporting surface such as a factory floor.\u003c\/li\u003e\n\u003cli\u003eDo not allow the load on the clamp to exceed the rated capacity during the turning operation.\u003c\/li\u003e\n\u003cli\u003eTurn the plate through the 90° arc from horizontal to vertical, or return through the same arc.\u003c\/li\u003e\n\u003cli\u003eDo not rush the turning operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eStage 5: Removing the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eOnce the plate is safely supported, use the Lock Open feature to release the clamp from the plate.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp after use and follow maintenance instructions before storing.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts to ensure proper clamp operation if repairs are needed.\u003c\/li\u003e\n\u003cli\u003eDo not grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.8 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Height\u003c\/td\u003e\n\u003ctd\u003e4.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e1.13 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Width\u003c\/td\u003e\n\u003ctd\u003e2.44 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e1.38 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.63 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation Arc\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Feature\u003c\/td\u003e\n\u003ctd\u003eLock Open – Lock Closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\u003ctd\u003eVertical Locking Lifting Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eModel L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc. (RENFROE brand)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not lift with the lock in the open position — always lock closed before lifting.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to the crane hook or use a heavy flexible connection; always use a flexible connection between the crane hook and clamp shackle.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job; do not use large capacity clamps to lift light loads.\u003c\/li\u003e\n\u003cli\u003eAlways operate within the rated 0.5-ton capacity; do not overload the clamp.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with this vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift a plate horizontally — this is a vertical lift clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eAlways refer to the pre-lift inspection checklist in the Operator's Manual before each lift.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts to ensure proper clamp operation.\u003c\/li\u003e\n\u003cli\u003eConsult the Operator's Manual or RENFROE when in doubt about any operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model L turn a plate from horizontal all the way to horizontal (180° total)?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model L can turn a single plate from horizontal to vertical and back to horizontal, completing a 180° total arc by moving through the same 90° arc twice.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can handle?\u003c\/strong\u003e\u003cbr\u003eA: The Model L (0.5-ton model) accommodates plate thicknesses from 0 in. up to a maximum of 0.63 in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I lift more than one plate at a time with the Model L?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model L is designed and rated for lifting a single plate at a time. Lifting multiple plates simultaneously or lifting from the bottom of a plate stack is not permitted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the Model L and the Model J?\u003c\/strong\u003e\u003cbr\u003eA: The Model L is described as a lighter-duty, more ergonomic version of the Model J. It is better suited for applications where ease of handling and operator comfort are priorities.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I attach the clamp directly to the crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. Always use a flexible connection between the crane hook and the clamp shackle. Direct attachment to the crane hook or use of a heavy flexible connection is not permitted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I modify or repair the clamp with non-OEM parts?\u003c\/strong\u003e\u003cbr\u003eA: No. The clamp must not be ground, welded, or modified in any manner. Only RENFROE replacement parts should be used to ensure proper clamp operation and maintain safety.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"0.5","offer_id":48631891722414,"sku":"L-00.50-A","price":963.0,"currency_code":"USD","in_stock":true},{"title":"1.0","offer_id":48631891755182,"sku":"L-01.00-A","price":1069.0,"currency_code":"USD","in_stock":true},{"title":"2.0","offer_id":48631891787950,"sku":"L-02.00-A","price":1255.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_L_Silo_1-1280x1280-1280x1280.webp?v=1785246952"},{"product_id":"caldwell-model-lj-vertical-lifting-clamp-locking-type","title":"Caldwell Model LJ Vertical Lifting Clamp Locking Type","description":"\u003ch2\u003eVertical Lifting Clamp Locking Type — 90° Plate Turning with Renfroe Lock Closed Feature\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell Renfroe Model LJ is a locking-type vertical lifting clamp engineered to turn a single steel plate from horizontal to vertical and back through the same 90° arc. Rated at 2 tons (Model LJ-02.00-A), it is compact and easy to handle, making it well-suited for steel fabrication shops, structural steel erection, and plate handling operations. It is manufactured by The Caldwell Group in Beloit, WI and sold through a worldwide network of stocking distributors.\u003c\/p\u003e\n\u003cp\u003eUnlike standard vertical lift clamps, the Model LJ incorporates the Renfroe Lock Closed Feature, which secures the clamp onto the plate during attachment and removal — reducing fumbling and improving efficiency in fast-paced jobsite conditions. The serrated cam jaw design is similar to the Model FR, providing positive grip on plate material.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003e90° Plate Turning Capability\u003c\/h4\u003e\n\u003cp\u003eThe Model LJ is purpose-built to turn a single plate from horizontal to vertical and back through the same 90° arc. This eliminates the need for additional rigging or manual repositioning when changing plate orientation, saving time and reducing handling risk on the shop floor.\u003c\/p\u003e\n\u003ch4\u003eRenfroe Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe integrated Renfroe Lock Closed Feature holds the clamp securely in the closed position during attachment to the plate. This makes it significantly easier to attach and remove the clamp, especially in overhead or awkward positioning situations.\u003c\/p\u003e\n\u003ch4\u003eSerrated Cam Jaw (Similar to Model FR)\u003c\/h4\u003e\n\u003cp\u003eThe serrated cam jaw provides a secure mechanical grip on the plate surface. This design mirrors the proven Model FR configuration, giving operators a reliable, time-tested bite on steel plate material.\u003c\/p\u003e\n\u003ch4\u003eCompact and Easy to Handle\u003c\/h4\u003e\n\u003cp\u003eAt 26 lbs and with an overall length of 15.81 inches, the Model LJ is manageable for a single operator in capacities through 3 tons. The relatively compact clamp body (9 in. L × 3.25 in. W × 7.25 in. H) keeps the rigging footprint minimal.\u003c\/p\u003e\n\u003ch4\u003eHigh-Temperature Variant Available\u003c\/h4\u003e\n\u003cp\u003eAll Model LJ clamps can be built as Model LJH clamps for use in extreme high-temperature situations. Contractors working in foundry, forge, or heat-treat environments should consult the factory for availability.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eSteel Plate Turning\u003c\/h4\u003e\n\u003cp\u003eTurning a single steel plate from horizontal to vertical and back through the same 90° arc during fabrication, processing, or staging operations.\u003c\/p\u003e\n\u003ch4\u003eStructural Steel Fabrication\u003c\/h4\u003e\n\u003cp\u003eRepositioning and lifting steel plate stock within fabrication shops where plates must be flipped or stood on edge for welding, cutting, or inspection.\u003c\/p\u003e\n\u003ch4\u003ePlate Storage and Staging\u003c\/h4\u003e\n\u003cp\u003eMoving and standing plates vertically for space-efficient storage or staging prior to installation or further processing.\u003c\/p\u003e\n\u003ch4\u003eSteel Erection and Handling\u003c\/h4\u003e\n\u003cp\u003eLifting and positioning steel plates during structural steel erection where controlled vertical orientation is required.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (flat, single plate lifts only)\u003c\/li\u003e\n\u003cli\u003eStructural steel members compatible with jaw opening (max plate thickness: 1 in. for Model LJ-02.00-A)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20337.pdf?v=1785247546\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Renfroe_20OM211-LJ_20100223_20WEB.pdf?v=1785247547\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_12685032-de81-4f66-bcfe-ed2b73c2e9e4.pdf?v=1785247545\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_1aa3dc34-3d93-4044-9fea-d15db8162b1e.pdf?v=1785247545\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_9561861d-a7d9-4146-b459-34d1893c7dbc.pdf?v=1785247546\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_4bbb8737-83e0-43c3-95d5-448030d84e28.pdf?v=1785247551\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eBefore Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eConfirm the clamp model and capacity are correct for the load — do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse the Renfroe Lock Closed Feature to hold the clamp open for easy placement onto the plate edge.\u003c\/li\u003e\n\u003cli\u003ePosition the clamp on a single plate only — never lift from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness is within the rated jaw range for the model (0–1 in. for LJ-02.00-A).\u003c\/li\u003e\n\u003cli\u003eLock the clamp closed with the lock before lifting — never lift with the lock in the open position.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eLifting and Turning\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eLift the plate vertically with the lifting force directly above and in line with the lifting shackle.\u003c\/li\u003e\n\u003cli\u003eTo turn the plate, ensure the opposite edge of the plate remains in contact with a supporting surface such as a factory floor throughout the turning operation.\u003c\/li\u003e\n\u003cli\u003eDuring turning, the load on the clamp must not exceed one half the rated capacity of the clamp.\u003c\/li\u003e\n\u003cli\u003eTurn the plate through the 90° arc from horizontal to vertical and back through the same 90° arc as intended — do not attempt a 180° arc unless using a clamp rated for that operation.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with this vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with this vertical lift clamp.\u003c\/li\u003e\n\u003cli\u003eDo not side load a straight shackle clamp.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eAfter Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eInspect the clamp after each use and follow the maintenance schedule in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eUse only Renfroe replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eClamps rated A (Good Visual Condition), B (Needs Repair Parts), or X (Beyond Repair, Discard) per the Lifting Clamp Survey Report guidance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eLJ-02.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e2 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e26 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Height\u003c\/td\u003e\n\u003ctd\u003e7.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Width\u003c\/td\u003e\n\u003ctd\u003e3.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e2.88 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e3.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e7.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e15.81 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e1 in (0–1 in range for LJ-02.00-A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Open\u003c\/td\u003e\n\u003ctd\u003e3.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thick\u003c\/td\u003e\n\u003ctd\u003e0.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation Arc\u003c\/td\u003e\n\u003ctd\u003e90° (horizontal to vertical and back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock Feature\u003c\/td\u003e\n\u003ctd\u003eRenfroe Lock Closed Feature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCam Jaw\u003c\/td\u003e\n\u003ctd\u003eSerrated (similar to Model FR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\u003ctd\u003eVertical Lifting Clamp — Locking Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc. — RENFROE Brand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Temperature Variant\u003c\/td\u003e\n\u003ctd\u003eAvailable as Model LJH (consult factory)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eHazard Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not overload the clamp beyond its rated capacity.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with this vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with this vertical lift only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not side load a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not misuse — do not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, load on the clamp must not exceed one half the rated capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow inspection and maintenance instructions.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load — do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job and within its rated capacity.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eLock the clamp closed with the lock before every lift.\u003c\/li\u003e\n\u003cli\u003eDuring plate turning, keep the opposite plate edge in contact with a supporting surface such as a factory floor.\u003c\/li\u003e\n\u003cli\u003eUse only Renfroe replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eAttend a Renfroe factory training class to establish proper clamp use.\u003c\/li\u003e\n\u003cli\u003eConsult the Operator's Manual or Renfroe when in doubt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model LJ turn a plate from horizontal all the way to vertical and back?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model LJ is specifically designed to turn a single plate from horizontal to vertical and back through the same 90° arc.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the Renfroe Lock Closed Feature?\u003c\/strong\u003e\u003cbr\u003eA: The Lock Closed Feature holds the clamp securely in the closed position during attachment and removal from the plate, making it easier to attach and detach the clamp on the job.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What plate thickness range does Model LJ-02.00-A accept?\u003c\/strong\u003e\u003cbr\u003eA: The LJ-02.00-A accepts plate thicknesses from 0 to 1 inch. Other part numbers in the 2-ton range accommodate thicker plates up to 2.5 inches — consult the full specification table or contact the factory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model LJ be used in high-temperature environments?\u003c\/strong\u003e\u003cbr\u003eA: All Model LJ clamps can be built as Model LJH clamps for use in extreme high-temperature situations. Contact the Caldwell factory at 800.628.4263 for details.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I lift more than one plate at a time with this clamp?\u003c\/strong\u003e\u003cbr\u003eA: No. The Operator's Manual explicitly states you must not lift more than one plate at a time with a vertical clamp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the Model LJ to lift a plate horizontally?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model LJ is a vertical lift clamp only. Do not lift plate horizontally with this clamp.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48631899488430,"sku":"LJ-02.00-A","price":1266.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_LJ_Silo_1-1280x1280.webp?v=1785247555"},{"product_id":"caldwell-model-tl-vertical-90-locking-lifting-clamp","title":"Caldwell Model TL Vertical 90° Locking Lifting Clamp","description":"\u003ch2\u003eVertical 90° Locking Lifting Clamp — Controlled Plate Turning with Lock Open\/Lock Closed Security\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell RENFROE Model TL is a vertical lifting clamp engineered to turn a single plate or structural member from horizontal to vertical and back to horizontal through the same 90° arc. Rated at 0.5 tons for the base configuration, it is designed for steel fabricators, ironworkers, and construction trades professionals who need reliable, controlled plate-turning operations. The clamp attaches to the edge of a plate and provides a secure grip throughout the full turning arc without repositioning.\u003c\/p\u003e\n\u003cp\u003eUnlike the Model J, the Model TL features a serrated cam jaw that pivots back and forth rather than rotating freely, making it better suited for smoother, less jarring lifts. The \"Lock Open – Lock Closed\" mechanism sets this clamp apart by allowing the operator to lock the jaw in the open position for easy attachment and removal, then lock it closed before lifting — adding a deliberate safety step that reduces the risk of accidental release.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003e90° Turning Arc — Same Arc Forward and Back\u003c\/h4\u003e\n\u003cp\u003eThe Model TL turns a single plate or member from horizontal to vertical and returns it through the identical 90° arc. This bidirectional turning capability means one clamp handles the complete plate-turning sequence without re-rigging, saving time and reducing handling steps on the job.\u003c\/p\u003e\n\u003ch4\u003eLock Open – Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe locking mechanism allows the jaw to be positively locked in the open position for attachment and removal, then locked closed prior to the lift. This deliberate two-state locking system gives the operator clear control over clamp status and reduces the risk of accidental engagement or disengagement during the lifting cycle.\u003c\/p\u003e\n\u003ch4\u003eSerrated Cam Jaw\u003c\/h4\u003e\n\u003cp\u003eThe cam jaw is serrated and designed to pivot back and forth, providing a strong mechanical grip on the plate edge. This design makes the Model TL more appropriate than a free-rotating cam jaw for lifts that are smoother and more controlled, where lateral cam movement is not needed.\u003c\/p\u003e\n\u003ch4\u003eCompact, Robust Construction\u003c\/h4\u003e\n\u003cp\u003eAt 9 lbs. with a clamp body length of 6.25 in. and an overall length of 11.12 in., the Model TL is a compact tool that handles a maximum plate thickness of 0.62 in. Its proportioned dimensions allow it to be used in tight fabrication and erection environments without interference from surrounding structure.\u003c\/p\u003e\n\u003ch4\u003eOnline Operator Manuals\u003c\/h4\u003e\n\u003cp\u003eRENFROE operator manuals — including inspection, maintenance, and proper use instructions — are hosted online at caldwellinc.com and available 24\/7. This eliminates downtime caused by misplaced safety documentation and supports ongoing compliance in job site safety programs.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003ePlate Turning — Horizontal to Vertical\u003c\/h4\u003e\n\u003cp\u003eThe Model TL is purpose-built to turn a single flat plate from a horizontal position to vertical, allowing fabricators and erectors to reposition steel stock or structural members for further processing or installation.\u003c\/p\u003e\n\u003ch4\u003ePlate Turning — Vertical to Horizontal\u003c\/h4\u003e\n\u003cp\u003eThe same 90° arc returns the plate from vertical back to horizontal, enabling a complete turn-and-set sequence with a single clamp and without re-rigging between passes.\u003c\/p\u003e\n\u003ch4\u003eSingle Member Lifting and Positioning\u003c\/h4\u003e\n\u003cp\u003eWhere a vertical lift of a single plate or structural member is required — and the lift path is smooth and controlled — the Model TL provides a secure, locking grip appropriate for precise placement work.\u003c\/p\u003e\n\u003ch4\u003eApplications Requiring Locking Jaw Control\u003c\/h4\u003e\n\u003cp\u003eIn situations where a standard vertical clamp such as the Model J would be used but a serrated, back-and-forth cam jaw is preferred over a freely pivoting cam, the Model TL is the specified alternative for less turbulent lifting conditions.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (single plate only)\u003c\/li\u003e\n\u003cli\u003eStructural steel members\u003c\/li\u003e\n\u003cli\u003eFlat bar and rolled sections within the 0 – 0.62 in. maximum plate thickness range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20338-339.pdf?v=1785248843\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Renfroe_20OM298-TL-TLA_20092623_20WEB.pdf?v=1785248844\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_a080863f-58e0-4b0a-b3fa-bfe06c532046.pdf?v=1785248843\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_285501ad-75fb-4d8a-8a59-454c3e24c7c0.pdf?v=1785248843\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_22cd1023-c427-4ff2-b5a5-1949a281a3c0.pdf?v=1785248843\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_f38ae313-a32e-4afa-a7e1-8b6ffca0a685.pdf?v=1785248849\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before putting the clamp in service; take the manual to your supervisor before first use.\u003c\/li\u003e\n\u003cli\u003eLock the clamp closed with the lock handle before lifting; do not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp; do not attach the clamp directly to the crane hook or use a heavy flexible connection — use a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with this vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift a plate horizontally with this vertical lift clamp.\u003c\/li\u003e\n\u003cli\u003eDo not misuse the clamp (e.g., do not lift a plate from the bottom of a plate stack).\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job; do not use large-capacity clamps to lift light loads and do not overload the clamp beyond its rated capacity.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift loads that are not balanced.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow all inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eDuring a turning operation, the edge of the plate opposite the clamped edge should always remain in contact with a supporting surface such as a factory floor, and the load on the clamp must not exceed one half of the clamp's rated capacity.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not rush lifting operations.\u003c\/li\u003e\n\u003cli\u003eConsult the Operator's Manual or RENFROE when in doubt about any application or procedure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTL (Locking Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e9 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e6.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Width\u003c\/td\u003e\n\u003ctd\u003e2.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e1.81 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e4.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e11.12 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Open\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurning Arc\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Feature\u003c\/td\u003e\n\u003ctd\u003eLock Open – Lock Closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCam Jaw Type\u003c\/td\u003e\n\u003ctd\u003eSerrated, pivots back and forth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the Model TL and the Model J?\u003c\/strong\u003e\u003cbr\u003eA: Both clamps are used for vertical lifting applications, but the Model TL has a serrated cam jaw that only pivots back and forth, whereas the Model J has a different cam jaw design. The Model TL is better suited for less turbulent, smoother lifts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model TL return the plate through the same arc it was turned through?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model TL is specifically designed to turn a single plate from horizontal to vertical and back to horizontal through the same 90° arc without re-rigging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the Lock Open – Lock Closed feature do?\u003c\/strong\u003e\u003cbr\u003eA: It allows the operator to lock the cam jaw in the open position for easy attachment to and removal from the plate, then lock the jaw closed before executing the lift. This provides deliberate control over jaw state at each stage of the operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model TL be built for high-temperature applications?\u003c\/strong\u003e\u003cbr\u003eA: Yes. All Model TL clamps can be configured as Model TLH clamps for use in extreme high-temperature situations. Contact Caldwell at 800.628.4263 to discuss requirements with a sales representative.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Where can I find the Operator's Manual for the Model TL?\u003c\/strong\u003e\u003cbr\u003eA: The Operator's Manual is available online at caldwellinc.com — search for Model TL to access inspection, maintenance, and proper use instructions at any time. A direct download link is also provided in the Product Documents section above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What replacement parts should be used for the Model TL?\u003c\/strong\u003e\u003cbr\u003eA: Only genuine RENFROE replacement parts should be used to ensure proper operation of the clamp. Refer to the Renfroe Repair Kits Catalog linked in the Product Documents section for available parts.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"0.5","offer_id":48631925538990,"sku":"TL-00.50-A","price":772.0,"currency_code":"USD","in_stock":true},{"title":"1.0","offer_id":48631925571758,"sku":"TL-01.00-A","price":895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_TL_Silo_1-1280x1280.webp?v=1785248853"},{"product_id":"caldwell-model-jp-vertical-90-side-pull-locking-lifting-clamp","title":"Caldwell Model JP Vertical 90° Side Pull Locking Lifting Clamp","description":"\u003ch2\u003eVertical 90° Side Pull Locking Lifting Clamp — Plate Turning with Full Arc Side Load Capability\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell RENFROE Model JP is a locking-type vertical lifting clamp engineered to turn a single plate or structural member from horizontal to vertical and back through the same 90° arc. Designed for contractors and trades professionals who require reliable plate turning in heavy fabrication and steel erection environments, the Model JP handles up to 1 ton at the JP-01.00-A sub-model level. Its pivoting shackle design allows side loading of the lifting shackle across the full 90° range of motion, making it a versatile tool for complex lift paths and repositioning operations.\u003c\/p\u003e\n\u003cp\u003eWhere standard vertical lifting clamps restrict side loading entirely, the Model JP's pivoting shackle permits side loading at graded capacities through the full arc — giving riggers the flexibility to manage angular lifts without switching equipment. The integrated Lock Open \/ Lock Closed mechanism further distinguishes this model by allowing fast, secure attachment and removal from the plate without sacrificing clamping integrity during the lift.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003e90° Plate Turning Arc\u003c\/h4\u003e\n\u003cp\u003eThe Model JP is specifically designed to turn a single plate or member from horizontal to vertical and back to horizontal through the same 90° arc. This bidirectional turning capability allows crews to reposition structural steel or plate stock on the same lift cycle, reducing the need for additional rigging setups and saving time on the job site.\u003c\/p\u003e\n\n\u003ch4\u003ePivoting Shackle with Graded Side Load Capacity\u003c\/h4\u003e\n\u003cp\u003eThe Model JP incorporates a pivoting shackle that permits side loading at 100% of rated capacity from vertical to 30°, 75% of rated capacity between 30° and 45°, and 50% of rated capacity between 45° and 90°. This graded side load capability allows riggers to work through angular lift paths that would be unsafe or impossible with a fixed-shackle vertical clamp, without being limited to vertical-only lifts.\u003c\/p\u003e\n\n\u003ch4\u003eLock Open \/ Lock Closed Mechanism\u003c\/h4\u003e\n\u003cp\u003eThe locking design features a dedicated lock assembly that secures the clamp in both the open and closed positions. The Lock Open position facilitates quick and easy attachment to and removal from the plate, while the Lock Closed position ensures the clamp stays fully engaged during the lift — a critical safety requirement when turning loaded members.\u003c\/p\u003e\n\n\u003ch4\u003eOptimized for High Cycle Count Operations\u003c\/h4\u003e\n\u003cp\u003eCaldwell recommends choosing the Model JP specifically for higher cycle counts and higher capacity lifts or pulls. In production environments where plates must be repeatedly turned and repositioned, the JP's construction is suited to withstand the demands of repetitive lifting operations without compromising performance or safety.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eStructural Steel Plate Turning\u003c\/h4\u003e\n\u003cp\u003eThe Model JP is purpose-built to rotate a single steel plate or structural member from a horizontal to a vertical orientation and back through the same 90° arc — a common requirement in steel fabrication shops and on erection sites.\u003c\/p\u003e\n\n\u003ch4\u003eAngular and Side Pull Lifting\u003c\/h4\u003e\n\u003cp\u003eThe pivoting shackle allows the clamp to be used where the lift line is not directly vertical, accommodating side pull angles up to 90° from vertical with appropriate capacity derating as specified by the manufacturer.\u003c\/p\u003e\n\n\u003ch4\u003eHigh-Frequency Production Lifting\u003c\/h4\u003e\n\u003cp\u003eFor operations that require repeated attachment, lifting, turning, and release cycles, the Model JP is the recommended choice within the J-Series line due to its design suitability for higher cycle counts.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle steel plates\u003c\/li\u003e\n\u003cli\u003eStructural steel members\u003c\/li\u003e\n\u003cli\u003eFlat plate stock requiring horizontal-to-vertical turning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20342-343.pdf?v=1785257233\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM0820-J-Series_8493e22f-2d5f-4581-90bd-2cda53aedbfb.pdf?v=1785257234\" target=\"_blank\" rel=\"noopener\"\u003eDownload Operator's Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_a606bbad-6693-4b58-b1a7-8443514e2b8b.pdf?v=1785257233\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_6f49cfb6-a729-4355-81be-95df383abc35.pdf?v=1785257233\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_f478d45f-e52c-4a89-b008-177bd4e7f659.pdf?v=1785257233\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_bbd4cd80-5f64-436f-adc4-f15555113028.pdf?v=1785257239\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eAlways lock the clamp closed before lifting; do not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to the crane hook; use a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job; do not use large capacity clamps to lift light loads.\u003c\/li\u003e\n\u003cli\u003eUse clamps within their rated capacity; do not overload.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow all inspection and maintenance instructions.\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp — use the Model JP's pivoting shackle for side load applications.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with a vertical lift-only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the edge of the plate opposite the clamped edge should always remain in contact with a supporting surface such as a floor, and the load on the clamp must not exceed one half of rated capacity during the turn.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eConsult the Operator's Manual or RENFROE when in doubt about any application or operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model JP be used to side load the lifting shackle, and if so, at what capacity?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model JP incorporates a pivoting shackle that permits side loading at 100% of rated capacity from vertical to 30°, 75% of rated capacity between 30° and 45°, and 50% of rated capacity between 45° and 90°.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model JP turn a plate from horizontal to vertical and back to horizontal?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model JP is designed to turn a single plate or member from horizontal to vertical and back to horizontal through the same 90° arc.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the Lock Open \/ Lock Closed feature do?\u003c\/strong\u003e\u003cbr\u003eA: The Lock Open position facilitates easy attaching and removing of the clamp from the plate. The Lock Closed position secures the clamp during the lift to prevent accidental release.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should I choose the Model JP over other J-Series clamps?\u003c\/strong\u003e\u003cbr\u003eA: The manufacturer recommends choosing the Model JP for higher cycle counts and higher capacity lifts or pulls compared to other models in the J-Series lineup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is factory refurbishment and recertification available for the Model JP?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Caldwell\/RENFROE offers factory refurbishment and recertification services. All clamps are proof tested and come with a certificate of proof test. Contact Caldwell at 800.628.4263 to begin the quote process.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eJP (Locking Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub-Model\u003c\/td\u003e\n\u003ctd\u003eJP-01.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e20 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e7.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Width\u003c\/td\u003e\n\u003ctd\u003e3.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e2.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e3.38 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e13.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Open\u003c\/td\u003e\n\u003ctd\u003e2.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thick\u003c\/td\u003e\n\u003ctd\u003e0.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArc of Rotation\u003c\/td\u003e\n\u003ctd\u003e90° (horizontal to vertical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (0°–30° from vertical)\u003c\/td\u003e\n\u003ctd\u003e100% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (30°–45°)\u003c\/td\u003e\n\u003ctd\u003e75% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (45°–90°)\u003c\/td\u003e\n\u003ctd\u003e50% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632157110446,"sku":"JP-01.00-A","price":1759.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_JP_Silo_1-1280x1280.webp?v=1785257242"},{"product_id":"caldwell-model-lp-vertical-locking-lifting-clamp","title":"Caldwell Model LP Vertical Locking Lifting Clamp","description":"\u003ch2\u003eModel LP Vertical Locking Lifting Clamp — 1-Ton Ergonomic Plate Turning Clamp\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model LP (LP-01.00-A) is a 1-ton capacity vertical locking lifting clamp engineered for turning single steel plates or structural members from horizontal to vertical and back through a 90° arc. Designed for contractors and rigging professionals who need precise, repeatable plate handling, it combines a pivoting shackle with a Lock Open – Lock Closed mechanism to streamline attachment and removal in demanding jobsite conditions. The Model LP is manufactured by The Caldwell Group and carries the trusted Renfroe sub-brand, backed by more than 50 years of international lifting clamp use.\u003c\/p\u003e\n\u003cp\u003eThe Model LP is the lightweight, ergonomic alternative to the heavier Model JP, delivering the same core turn-and-lift functionality in a 5.3 lb. package. Its pivoting shackle permits side loading at rated capacity increments up to 90°, a capability not available on straight-shackle clamps, making it a more versatile choice when load angles vary during the lift.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003e90° Plate Turning Arc\u003c\/h4\u003e\n\u003cp\u003eThe Model LP is specifically designed to turn a single plate or member from horizontal to vertical and back to horizontal through the same 90° arc. This makes it well-suited for fabrication and steel erection tasks where plate orientation must change during handling without re-rigging.\u003c\/p\u003e\n\u003ch4\u003ePivoting Shackle with Graded Side-Load Capacity\u003c\/h4\u003e\n\u003cp\u003eThe integrated pivoting shackle allows side loading of the lifting shackle at 100% of rated capacity from vertical to 30°, 75% of rated capacity between 30° and 45°, and 50% of rated capacity between 45° and 90°. This de-rating system gives riggers a defined, predictable capacity envelope when load angles shift during a lift, reducing guesswork on the job.\u003c\/p\u003e\n\u003ch4\u003eLock Open – Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe Lock Open – Lock Closed mechanism facilitates attaching and removing the clamp from the plate quickly and securely. Locking the clamp closed before a lift is a required safety practice, and the positive locking feature makes this step straightforward for operators.\u003c\/p\u003e\n\u003ch4\u003eLightweight, Ergonomic Design\u003c\/h4\u003e\n\u003cp\u003eAt 5.3 lbs., the Model LP is the ergonomic version of the Model JP, reducing operator fatigue during repeated attach-and-lift cycles. A lighter clamp body also means less total rigging weight to account for when working near rated lift capacities.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eSingle Plate Turning\u003c\/h4\u003e\n\u003cp\u003eTurn individual steel plates from horizontal to vertical or vertical to horizontal during fabrication, staging, or erection operations. The clamp is rated for one plate at a time and must not be used to lift from the bottom of a plate stack.\u003c\/p\u003e\n\u003ch4\u003eStructural Member Handling\u003c\/h4\u003e\n\u003cp\u003eHandle single structural members that require reorientation during steel erection or shop fabrication, where controlled turning through a 90° arc is needed.\u003c\/p\u003e\n\u003ch4\u003eSide-Pull Lifts\u003c\/h4\u003e\n\u003cp\u003eWhere the crane or hoist line cannot remain directly vertical above the clamp shackle, the pivoting shackle permits controlled side loading up to 90° from vertical using the defined de-rated capacity schedule.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle steel plates (up to 0.75 in. maximum thickness)\u003c\/li\u003e\n\u003cli\u003eSingle structural steel members\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20344.pdf?v=1785258676\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM-L-Series_7c8e7925-81fd-47d3-aea6-bd4182335d8d.pdf?v=1785258676\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_3451cd12-cfc5-4dec-b0e3-76d15072761c.pdf?v=1785258676\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_fed3fb2f-e6b2-49b6-a36a-793357784ecf.pdf?v=1785258675\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_7d4f27a0-4d66-403b-bf73-89c85151f8b3.pdf?v=1785258675\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_4f318f1d-1e4f-4b3e-bf10-fbd9b754871d.pdf?v=1785258680\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eAlways lock the clamp closed before lifting; never lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to a crane hook; always use a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp.\u003c\/li\u003e\n\u003cli\u003eUse the clamp within its rated capacity; do not overload the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift a plate horizontally with a vertical lift-only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp — use the pivoting shackle Model LP for side-load applications.\u003c\/li\u003e\n\u003cli\u003eDo not misuse the clamp (e.g., do not lift a plate from the bottom of a plate stack).\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow all inspection and maintenance instructions.\u003c\/li\u003e\n\u003cli\u003eUse only Renfroe replacement parts to assure proper operation.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the edge of the plate opposite the edge to which the clamp is attached should always be in contact with a supporting surface such as a factory floor, and the load on the clamp must not exceed one half of the rated capacity during the turn.\u003c\/li\u003e\n\u003cli\u003eConsult the Operator's Manual or Renfroe when in doubt about any application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eLP-01.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub-brand\u003c\/td\u003e\n\u003ctd\u003eRenfroe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eVertical Locking Lifting Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA – Maximum Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB – Jaw Length\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC – Clamp Body Length\u003c\/td\u003e\n\u003ctd\u003e5.13 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD – Overall Length\u003c\/td\u003e\n\u003ctd\u003e8.69 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE – Shackle Opening\u003c\/td\u003e\n\u003ctd\u003e1.13 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF – Overall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e4.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG – Clamp Body Width\u003c\/td\u003e\n\u003ctd\u003e2.44 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH – Jaw Height\u003c\/td\u003e\n\u003ctd\u003e1.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ – Shackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e5.3 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifting Arc\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (0°–30°)\u003c\/td\u003e\n\u003ctd\u003e100% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (30°–45°)\u003c\/td\u003e\n\u003ctd\u003e75% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (45°–90°)\u003c\/td\u003e\n\u003ctd\u003e50% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock Feature\u003c\/td\u003e\n\u003ctd\u003eLock Open – Lock Closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model LP lift more than one plate at a time?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model LP is designed and rated for lifting a single plate or member only. Lifting more than one plate at a time with a vertical clamp is explicitly prohibited.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can grip?\u003c\/strong\u003e\u003cbr\u003eA: The Model LP-01.00-A accommodates a maximum plate thickness of 0.75 in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I side-load this clamp, and if so, by how much?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The pivoting shackle permits side loading at 100% of rated capacity from vertical to 30°, 75% of rated capacity between 30° and 45°, and 50% of rated capacity between 45° and 90°. Side loading beyond 90° is not permitted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the Model LP differ from the Model JP?\u003c\/strong\u003e\u003cbr\u003eA: The Model LP is the lightweight, ergonomic version of the Model JP, providing the same vertical turn-and-lift functionality in a lighter, more manageable package.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I attach the Model LP directly to a crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. Always use a flexible connection between the crane hook and the clamp shackle. Direct attachment to a crane hook is prohibited per the operator's manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are replacement parts available for the Model LP?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Renfroe replacement parts are available. Only genuine Renfroe replacement parts should be used to ensure proper operation of the clamp. Refer to the Renfroe Repair Kits Catalog linked in the Product Documents section.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632202264750,"sku":"LP-01.00-A","price":1427.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_LP_Silo_1-1280x1280.webp?v=1785258684"},{"product_id":"caldwell-model-la-vertical-180-ergonomic-lifting-clamp","title":"Caldwell Model LA Vertical 180° Ergonomic Lifting Clamp","description":"\u003ch2\u003eVertical 180° Ergonomic Lifting Clamp — Single Plate Turning from Horizontal to Vertical\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell Renfroe Model LA is a locking-type ergonomic vertical lifting clamp engineered to turn a single plate or member from horizontal to vertical to horizontal through a full 180° arc. Rated at 0.5 tons capacity, this clamp is built for steel fabricators, ironworkers, and construction trades professionals who need reliable, repeatable plate-turning performance on the job site or in the shop. The push-button auxiliary lock and Lock Open – Lock Closed feature make it fast to attach and remove from plate stock, reducing downtime between lifts.\u003c\/p\u003e\n\u003cp\u003eThe Model LA is the lightweight, ergonomic evolution of the Model JA, featuring a round swivel jaw in place of the standard jaw design. At 4.8 lbs., it delivers the same plate-turning capability in a more manageable package for operators working at height or in tight spaces.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003e180° Rotation Arc\u003c\/h4\u003e\n\u003cp\u003eThe Model LA is specifically designed to turn a single plate or member from horizontal to vertical to horizontal through a full 180° arc in a single rigging setup. This capability eliminates the need to re-rig mid-operation, saving time and reducing lift points on the shop floor.\u003c\/p\u003e\n\u003ch4\u003ePush-Button Auxiliary Lock\u003c\/h4\u003e\n\u003cp\u003eAn integrated push-button auxiliary lock secures the clamp in position during the lift cycle. This locking mechanism provides an additional layer of security against unintended jaw release during plate turning operations.\u003c\/p\u003e\n\u003ch4\u003eLock Open – Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe Lock Open – Lock Closed feature allows operators to hold the jaw in the open position while attaching the clamp to a plate, then lock it closed before the lift. This significantly simplifies one-handed attachment and removal, especially when working on stacked plate or in confined areas.\u003c\/p\u003e\n\u003ch4\u003eLightweight Ergonomic Design\u003c\/h4\u003e\n\u003cp\u003eWeighing only 4.8 lbs., the Model LA is the lightweight ergonomic version of the Model JA with a round swivel jaw. The reduced weight lowers operator fatigue during repeated clamp attachment and removal cycles throughout a shift.\u003c\/p\u003e\n\u003ch4\u003eRound Swivel Jaw\u003c\/h4\u003e\n\u003cp\u003eThe round swivel jaw accommodates the rotational movement required during 180° plate turning without binding or misalignment. This design feature is integral to smooth arc transitions from horizontal through vertical and back.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eSteel Plate Turning\u003c\/h4\u003e\n\u003cp\u003eDesigned to turn a single steel plate from horizontal to vertical to horizontal through a 180° arc, making it standard equipment for plate handling in steel fabrication shops and on structural jobsites.\u003c\/p\u003e\n\u003ch4\u003eStructural Member Repositioning\u003c\/h4\u003e\n\u003cp\u003eUsed to reorient structural members for fit-up, welding, or staging — turning flat stock upright or returning vertical members to horizontal position without manual handling.\u003c\/p\u003e\n\u003ch4\u003ePlate Staging and Handling\u003c\/h4\u003e\n\u003cp\u003eSuitable for picking and placing individual plates from storage stacks and delivering them to cutting tables, press brakes, or weld fixtures in the correct orientation.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle steel plates up to 0.63 in. thick\u003c\/li\u003e\n\u003cli\u003eSingle structural members within rated jaw capacity\u003c\/li\u003e\n\u003cli\u003eFlat stock suitable for vertical lift and 180° arc turning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20348.pdf?v=1785264804\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM-L-Series_57974a24-b619-4bd1-bd58-9a2e24539fd5.pdf?v=1785264805\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_7ab4b075-7644-45b8-8c4a-177110135f37.pdf?v=1785264805\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_47e2c16d-1016-4830-bc6e-88e414db15fb.pdf?v=1785264804\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_39600408-be14-40a4-a7d1-ecbbeb602752.pdf?v=1785264804\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_189a8ae8-1dfe-4109-a109-8f98538c2b4f.pdf?v=1785264809\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003ePress the push-button auxiliary lock to engage the Lock Open position, holding the jaw open for plate insertion.\u003c\/li\u003e\n\u003cli\u003ePosition the clamp jaw over the edge of the single plate or member, ensuring the plate thickness does not exceed 0.63 in.\u003c\/li\u003e\n\u003cli\u003eRelease the push-button to allow the jaw to close onto the plate, then engage the Lock Closed position to secure the clamp.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003ePerforming the Lift and 180° Turn\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eConnect the rigging to the clamp shackle using a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to a crane hook.\u003c\/li\u003e\n\u003cli\u003eVerify the load does not exceed the 0.5-ton rated capacity and that the load is balanced before lifting.\u003c\/li\u003e\n\u003cli\u003eDuring the turning operation, keep the edge of the plate opposite the clamped edge in contact with a supporting surface such as the floor throughout the arc.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with this vertical clamp.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eRemoving the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eOnce the plate is secured in its final position, press the push-button auxiliary lock to engage the Lock Open position.\u003c\/li\u003e\n\u003cli\u003eRemove the clamp from the plate edge.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before the next lift per the Operator's Manual maintenance and inspection instructions.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eLA-00.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation Arc\u003c\/td\u003e\n\u003ctd\u003e180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Lock\u003c\/td\u003e\n\u003ctd\u003ePush button\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock Feature\u003c\/td\u003e\n\u003ctd\u003eLock Open – Lock Closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA – Maximum Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.63 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB – Jaw Length\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC – Clamp Body Length\u003c\/td\u003e\n\u003ctd\u003e4.88 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD – Overall Length\u003c\/td\u003e\n\u003ctd\u003e8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE – Shackle Opening\u003c\/td\u003e\n\u003ctd\u003e1.13 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF – Overall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e4.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG – Clamp Body Width\u003c\/td\u003e\n\u003ctd\u003e2.44 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH – Jaw Height\u003c\/td\u003e\n\u003ctd\u003e1.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.8 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eIn Stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eAlways lock the clamp closed before lifting — do not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to a crane hook; use a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp.\u003c\/li\u003e\n\u003cli\u003eUse the correct capacity clamp for the job — do not use large-capacity clamps to lift light loads and do not exceed the rated capacity.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load — do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with this vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with this vertical lift clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eUse only Renfroe replacement parts to ensure proper clamp operation.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eDuring 180° turning operations, keep the opposite plate edge in contact with a supporting surface throughout the arc and do not exceed one half of the rated capacity during the turning operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can grip?\u003c\/strong\u003e\u003cbr\u003eA: The Model LA-00.50-A accepts plate thicknesses from 0 to 0.63 in. (5\/8 in.) as specified in the product dimensions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp turn a plate from horizontal all the way to vertical and back to horizontal in one lift?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model LA is specifically designed to turn a single plate or member from horizontal to vertical to horizontal through a full 180° arc in a single operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the Lock Open – Lock Closed feature do?\u003c\/strong\u003e\u003cbr\u003eA: The Lock Open position holds the jaw open so the operator can attach the clamp to the plate without fighting spring tension. Once positioned, engaging Lock Closed secures the jaw for the lift. This simplifies both attachment and removal of the clamp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this clamp to lift more than one plate at a time?\u003c\/strong\u003e\u003cbr\u003eA: No. Per the operator guidance, do not lift more than one plate at a time with a vertical clamp. The Model LA is designed for single plate or member lifting only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the Model LA differ from the Model JA?\u003c\/strong\u003e\u003cbr\u003eA: The Model LA is the lightweight, ergonomic version of the Model JA. The primary design difference is the round swivel jaw on the LA, which facilitates smooth 180° arc rotation during plate turning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I attach the clamp directly to a crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. The operator guidance specifies that the clamp must not be attached directly to a crane hook or used with a heavy flexible connection. Always use a proper flexible connection between the crane hook and the clamp shackle.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632433574062,"sku":"LA-00.50-A","price":846.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_LA_Silo_1-1280x1280-1280x1280.webp?v=1785264814"},{"product_id":"caldwell-model-pck-sl-locking-screw-type-vertical-lifting-clamp","title":"Caldwell Model PCK-SL Locking Screw Type Vertical Lifting Clamp","description":"\u003ch2\u003eLocking Screw Type Vertical Lifting Clamp — Versatile Lift, Turn \u0026amp; Pull for Steel Fabrication\u003c\/h2\u003e\n\u003cp\u003eThe Model PCK-SL-05.00-A Locking Screw Type Vertical Lifting Clamp is a 5-ton capacity, multi-purpose rigging tool engineered for demanding steel fabrication and construction environments. Manufactured by The Caldwell Group under the trusted RENFROE brand, this clamp is designed for lift and turn operations across a full horizontal-through-180° arc, making it suitable for complex positioning tasks beyond simple vertical lifts. It is equally capable of being used as an assembly tool for drawing steel plates and structural members together. Contractors and fabricators who work with heavy plate, structural sections, and welded assemblies will find this clamp an essential part of their rigging inventory.\u003c\/p\u003e\n\u003cp\u003eUnlike standard vertical lift-only clamps, the PCK-SL series features dual lifting eyes that allow repositioning of the lifting shackle for optimized pulling angles, and a locking adjusting screw mechanism that securely accommodates varying plate thicknesses up to 1.5 inches. These capabilities — combined with the clamp's ability to function from horizontal through a 180° arc — set it apart from single-purpose lifting clamps that cannot perform turning or assembly operations.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003eLocking Screw Adjustment\u003c\/h4\u003e\n\u003cp\u003eThe adjusting screw allows the clamp to accommodate various material thicknesses up to 1.5 in. and secures the clamp firmly to the workpiece before lifting. This positive locking action gives contractors confidence that the clamp will remain attached throughout the lift, turn, or pull operation without slipping.\u003c\/p\u003e\n\n\u003ch4\u003eLift \u0026amp; Turn Through 180° Arc\u003c\/h4\u003e\n\u003cp\u003eThe PCK-SL is specifically rated for lift and turn operations from the horizontal position through a full 180° arc. This capability allows a single pair of clamps to handle plate flipping, rotation, and repositioning tasks that would otherwise require additional rigging equipment or manual intervention.\u003c\/p\u003e\n\n\u003ch4\u003eDual Lifting Eyes\u003c\/h4\u003e\n\u003cp\u003eTwo lifting eyes are built into the clamp body, allowing the operator to reposition the lifting shackle for the best pulling angle relative to the load. This flexibility improves load control during complex lift-and-turn sequences and assembly alignment operations.\u003c\/p\u003e\n\n\u003ch4\u003eErgonomic Handle for Easy Attachment and Removal\u003c\/h4\u003e\n\u003cp\u003eThe clamp features an ergonomically designed handle with an overall length of 7.38 in. that makes attaching and removing the clamp more efficient, even in tight working conditions. Faster attachment and removal reduces downtime during high-throughput fabrication operations.\u003c\/p\u003e\n\n\u003ch4\u003eAssembly and Drawing Capability\u003c\/h4\u003e\n\u003cp\u003eWhen used in pairs, the PCK-SL can draw two plates or structural members together or position them at a predetermined location adjacent to each other. This makes the clamp a dual-purpose tool that functions as both a lifting device and a fabrication assembly aid, reducing the number of tools a crew needs on the job.\u003c\/p\u003e\n\n\u003ch4\u003eRENFROE Brand Reliability\u003c\/h4\u003e\n\u003cp\u003eThe RENFROE brand has been trusted by international lifting clamp users for more than 50 years and is manufactured by The Caldwell Group, Inc. in Rockford, IL. This heritage of quality is backed by a worldwide network of stocking distributors who maintain the same performance and service standards.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eVertical Lifting of Steel Plate\u003c\/h4\u003e\n\u003cp\u003eAttach the clamp to the edge of a steel plate to perform a vertical lift with the rigging force aligned directly above the shackle, as intended for vertical lift operations.\u003c\/p\u003e\n\n\u003ch4\u003ePlate Turning and Flipping\u003c\/h4\u003e\n\u003cp\u003eUse the clamp — typically in pairs — to rotate or flip steel plate from horizontal through a 180° arc, eliminating the need for manual repositioning of heavy members.\u003c\/p\u003e\n\n\u003ch4\u003eAssembly of Structural Members\u003c\/h4\u003e\n\u003cp\u003eThe PCK-SL can be used in pairs to draw steel plates, structural members, and welded sections together or position them precisely adjacent to each other for fit-up and welding.\u003c\/p\u003e\n\n\u003ch4\u003ePulling and Positioning\u003c\/h4\u003e\n\u003cp\u003eBeyond lifting, the clamp functions as a pulling tool, allowing fabricators to pull members to a predetermined position using the dual lifting eye configuration to optimize the pulling angle.\u003c\/p\u003e\n\n\u003ch4\u003eHandling Welded Sections\u003c\/h4\u003e\n\u003cp\u003eThe clamp is suited for handling assembled or welded steel sections that require repositioning or alignment during fabrication without damaging the workpiece surface at the jaw contact point.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate\u003c\/li\u003e\n\u003cli\u003eStructural steel members\u003c\/li\u003e\n\u003cli\u003eWelded steel sections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20352.pdf?v=1785264874\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/54_PCK-SL_20062226.pdf?v=1785264875\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_bb6a46f1-1ef8-4565-8230-9cf4bdf77529.pdf?v=1785264874\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_8cdc3f16-455c-4be3-bb9b-4a3980e65fdf.pdf?v=1785264874\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_5114ea8d-747f-45cb-ae8e-39eac90fb7ea.pdf?v=1785264874\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_4b6cfc66-3352-4d28-b657-a772cba6b58b.pdf?v=1785264879\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the operator manual before placing the clamp in service.\u003c\/li\u003e\n\u003cli\u003eLock the clamp closed before lifting; never lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to a crane hook; use a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not use a heavy flexible connection that may release the clamp.\u003c\/li\u003e\n\u003cli\u003eUse the correct capacity clamp for the job; do not use large capacity clamps to lift light loads, and do not overload clamps beyond their rated capacity.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift loads that are not balanced.\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with a vertical lift-only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow all inspection and maintenance instructions in the operator manual.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts to ensure proper operation of the clamp.\u003c\/li\u003e\n\u003cli\u003eAttend a RENFROE factory training class to establish proper clamp use.\u003c\/li\u003e\n\u003cli\u003eConsult the operator manual or factory when in doubt about any application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003ePCK-SL-05.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e62.66 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e1.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift \u0026amp; Turn Arc\u003c\/td\u003e\n\u003ctd\u003eHorizontal through 180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e8.88 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length\u003c\/td\u003e\n\u003ctd\u003e10 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Thickness\u003c\/td\u003e\n\u003ctd\u003e1.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.88 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Depth\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Opening Height\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Thickness\u003c\/td\u003e\n\u003ctd\u003e1.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e3.81 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e5.88 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e9.31 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Length\u003c\/td\u003e\n\u003ctd\u003e14.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e13.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Eye Depth\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOA Handle Length\u003c\/td\u003e\n\u003ctd\u003e7.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be used for both lifting and assembly tasks?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The PCK-SL-05.00-A is a multi-purpose tool designed for lifting, turning, pulling, and the assembly of steel plates, structural members, and welded sections. When used in pairs, it can draw two plates or members together or position them adjacent to each other at a predetermined location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can accommodate?\u003c\/strong\u003e\u003cbr\u003eA: The adjusting screw accommodates plate thicknesses up to 1.5 in. for this 5-ton model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why does the clamp have two lifting eyes?\u003c\/strong\u003e\u003cbr\u003eA: The dual lifting eyes allow operators to reposition the lifting shackle to achieve a better pulling angle relative to the load, which improves control during turning and pulling operations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this clamp suitable for horizontal plate lifting?\u003c\/strong\u003e\u003cbr\u003eA: No. This is a vertical lifting and turning clamp. It should not be used to lift plate horizontally. It is designed for vertical lift and turn operations through a horizontal-to-horizontal 180° arc.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be modified or repaired in the field?\u003c\/strong\u003e\u003cbr\u003eA: The clamp must not be altered, ground, welded, or modified in any manner. Only genuine RENFROE replacement parts should be used for repairs to ensure proper operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many clamps are typically required for an assembly operation?\u003c\/strong\u003e\u003cbr\u003eA: The PCK-SL is generally used in pairs when drawing two plates or members together or positioning them adjacent to each other.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632434229422,"sku":"PCK-SL-05.00-A","price":5422.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/PCK-SL-1280x1280-1280x1280.webp?v=1785264883"},{"product_id":"caldwell-model-scp-vertical-horizontal-locking-screw-type-plate-clamp","title":"Caldwell Model SCP Vertical \u0026 Horizontal Locking Screw Type Plate Clamp","description":"\u003ch2\u003eVertical \u0026amp; Horizontal Locking Screw Type Plate Clamp — 3-Ton Capacity with 180° Arc Range\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell Renfroe Model SCP-03.00-A is a heavy-duty, locking screw-type plate clamp rated for 3 tons and designed to handle steel plate from horizontal to vertical to horizontal through a full 180° arc. Built for use at rolling and forming machines, this clamp is a practical solution for fabricators, ironworkers, and contractors who need reliable, controlled plate manipulation in demanding industrial environments. The spring-loaded pivoting cam jaw engages automatically when a load is applied to the lifting shackle, providing positive grip security throughout the lift and turn sequence.\u003c\/p\u003e\n\u003cp\u003eThe Model SCP is the heavy-duty screw-clamp version of the Model RSC, offering enhanced locking security through its screw mechanism in addition to the spring-loaded cam jaw. This dual-action design makes it the preferred choice when a positive mechanical lock is required before lifting begins, reducing reliance on load-induced jaw engagement alone.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003e180° Arc Range — Horizontal to Vertical to Horizontal\u003c\/h4\u003e\n\u003cp\u003eThe SCP-03.00-A is purpose-built to rotate a single steel plate from flat horizontal, through full vertical, and back to horizontal in a single continuous 180° arc. This capability eliminates the need for additional rigging reconfigurations during plate turning operations, saving setup time on the shop floor or job site.\u003c\/p\u003e\n\u003ch4\u003eSpring-Loaded Pivoting Cam Jaw\u003c\/h4\u003e\n\u003cp\u003eThe spring-loaded cam jaw pivots and cams inward automatically when a load is applied to the lifting shackle, creating a self-tightening grip as lift force increases. This mechanism ensures the clamp maintains secure plate engagement throughout the full range of motion without manual jaw adjustment during the lift.\u003c\/p\u003e\n\u003ch4\u003eHeavy-Duty Screw Locking Mechanism\u003c\/h4\u003e\n\u003cp\u003eAs the screw-type version of the Model RSC, the SCP features a positive mechanical screw lock that secures the jaw in the closed position before the lift begins. This adds an additional layer of retention beyond the cam jaw alone, making the clamp suitable for higher-demand applications where positive pre-lift lockout is required.\u003c\/p\u003e\n\u003ch4\u003eHorizontal Plate Handling in Paired or Tripod Arrangements\u003c\/h4\u003e\n\u003cp\u003eWhen used in pairs, sets of pairs, or in a tripod arrangement, the SCP-03.00-A is capable of handling steel plate in a horizontal orientation. This flexibility allows the same clamp to serve both turning and flat-lift applications, reducing the number of specialized tools required on a project.\u003c\/p\u003e\n\u003ch4\u003eDesigned for Rolling \u0026amp; Forming Machine Applications\u003c\/h4\u003e\n\u003cp\u003eThe Model SCP was specifically developed to handle plate at rolling and forming machines, where precise and repeatable plate positioning is critical. This purpose-built design means the clamp geometry and capacity are optimized for the forces and orientations encountered in plate processing environments.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eSteel Plate Turning at Rolling Machines\u003c\/h4\u003e\n\u003cp\u003eThe SCP-03.00-A is designed to handle and rotate steel plate at rolling machines, allowing operators to feed, flip, and reposition plate through the full 180° arc during processing.\u003c\/p\u003e\n\u003ch4\u003eSteel Plate Handling at Forming Machines\u003c\/h4\u003e\n\u003cp\u003eAt press brakes and forming machines, the clamp enables controlled single-plate positioning and turning without manual plate handling, improving both efficiency and operator safety.\u003c\/p\u003e\n\u003ch4\u003eVertical Plate Lifting\u003c\/h4\u003e\n\u003cp\u003eThe clamp handles single steel plate in a vertical orientation, with the cam jaw engaging securely under load for reliable vertical lifts within the 3-ton rated capacity.\u003c\/p\u003e\n\u003ch4\u003eHorizontal Plate Lifting in Pairs or Tripod\u003c\/h4\u003e\n\u003cp\u003eWhen deployed in matched pairs, sets of pairs, or a tripod configuration, the SCP-03.00-A supports horizontal plate lifting, allowing flat plate to be moved and positioned without tilting.\u003c\/p\u003e\n\u003ch4\u003eSingle Plate Separation and Handling\u003c\/h4\u003e\n\u003cp\u003eThe clamp is intended for lifting one plate at a time, making it appropriate for single-plate separation and transfer operations in steel service centers and fabrication shops.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (flat, single plates up to 2 in. thickness)\u003c\/li\u003e\n\u003cli\u003eSteel members suitable for vertical and horizontal lift clamp engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20354.pdf?v=1785265488\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM920-SCPA-SCP.pdf?v=1785265490\" target=\"_blank\" rel=\"noopener\"\u003eDownload Operator's Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_06f86eda-5870-40df-be41-ff75b2bb2df2.pdf?v=1785265488\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_b27e9979-e042-4901-b76a-78d9b2b50b6d.pdf?v=1785265488\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_13c7d6f6-d109-4a67-bcb4-cab77a08e6ab.pdf?v=1785265488\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_979479d3-d82b-4a14-86f2-a7b040654be3.pdf?v=1785265493\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before placing the clamp in service.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eLock clamp closed with the screw lock before lifting; do not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp during the lift.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to the crane hook; always use a flexible connection between the crane hook and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job; do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003cli\u003eDo not overload the clamp beyond its 3-ton rated capacity.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eDo not side-load a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not rush; do not lift more than one plate at a time with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eUse only genuine Renfroe replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow all inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the edge of the plate opposite the clamped edge should always be in contact with a supporting surface, and the load on the clamp must not exceed one-half rated capacity during the turn.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with a vertical-lift-only clamp; use paired or tripod arrangements as specified for horizontal lifts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eSCP-03.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e3 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e19 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e3.12 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e5.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003e12 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Open\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e10.81 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e4.06 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2.81 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thick\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Block Width\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArc Range\u003c\/td\u003e\n\u003ctd\u003e180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\u003ctd\u003eScrew, Spring-Loaded Pivoting Cam Jaw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the SCP-03.00-A lift plate horizontally with a single clamp?\u003c\/strong\u003e\u003cbr\u003eA: No. The clamp is capable of handling plate horizontally only when used in pairs, sets of pairs, or in a tripod arrangement. A single clamp is intended for vertical lifts and turning operations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can handle?\u003c\/strong\u003e\u003cbr\u003eA: The SCP-03.00-A accommodates steel plate up to 2 inches thick.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the cam jaw engage?\u003c\/strong\u003e\u003cbr\u003eA: The spring-loaded pivoting cam jaw cams inward automatically when a load is applied to the lifting shackle, creating a self-tightening grip under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the Model SCP and the Model RSC?\u003c\/strong\u003e\u003cbr\u003eA: The Model SCP is the heavy-duty screw-clamp version of the Model RSC, adding a positive mechanical screw lock to the cam jaw design for enhanced retention security.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be used to lift more than one plate at a time?\u003c\/strong\u003e\u003cbr\u003eA: No. The Operator's Manual explicitly states that operators should not lift more than one plate at a time with a vertical clamp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are replacement parts available for the Model SCP?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Genuine Renfroe replacement parts — including the cam jaw kit, screw, screw cup, shackle, shackle and cam jaw pin, and optional handle assembly (for models up to 3 tons) — are available. Use only genuine Renfroe replacement parts to ensure proper clamp operation. See the Renfroe Repair Kits Catalog linked above.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632447369390,"sku":"SCP-03.00-A","price":1574.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_SCP_Silo_1-1280x1280.webp?v=1785265497"},{"product_id":"caldwell-model-rsc-locking-type-vertical-lifting-screw-clamp","title":"Caldwell Model RSC Locking Type Vertical Lifting Screw Clamp","description":"\u003ch2\u003eRenfroe Model RSC-00.50-B Locking Screw Type Vertical Lifting Clamp — Reliable Bench Work on Thick Steel Plate\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model RSC-00.50-B is a locking, screw-type vertical lifting clamp rated at 0.5 tons (1,000 lbs), engineered specifically for bench work on steel plates of large thickness weighing less than 1,000 lbs. Manufactured by The Caldwell Group, Inc. in Rockford, IL, this clamp is part of the trusted RENFROE brand — preferred by international lifting clamp users for more than 50 years. It accommodates plate thicknesses from 1-3\/8 in. up to 4-1\/4 in. and is designed for vertical and 180° lifting operations. This clamp is sold through a worldwide network of stocking distributors and is built to the same high-quality performance standards the RENFROE brand is known for.\u003c\/p\u003e\n\u003cp\u003eCompared to standard vertical lifting clamps, the Model RSC features a lightweight screw-type locking mechanism that makes it easier to handle in bench work environments — particularly when working with large-thickness plate that demands a secure, positive grip. Its locking design provides an added layer of security that passive-grip clamps cannot offer, reducing the risk of accidental release during positioning or lifting operations.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003eLocking Screw Mechanism\u003c\/h4\u003e\n\u003cp\u003eThe RSC uses a screw-type jaw that positively locks onto the plate, providing a secure, controlled grip. This locking action is critical when working with heavy steel plate where an unsecured clamp could result in a dropped load or injury.\u003c\/p\u003e\n\n\u003ch4\u003eLightweight Construction for Easier Handling\u003c\/h4\u003e\n\u003cp\u003eAt 16.5 lbs, the RSC-00.50-B is designed to be lightweight and easier to handle for capacities up to 1\/2-ton. This reduces operator fatigue during repetitive bench work positioning tasks.\u003c\/p\u003e\n\n\u003ch4\u003eWide Jaw Opening — Up to 4-1\/4 Inches\u003c\/h4\u003e\n\u003cp\u003eThe RSC-00.50-B accepts plate thicknesses from 1-3\/8 in. up to 4-1\/4 in., making it well suited for large-thickness steel plate applications where narrower-opening clamps cannot be used.\u003c\/p\u003e\n\n\u003ch4\u003eVertical \/ 180° Lifting Capability\u003c\/h4\u003e\n\u003cp\u003eThis clamp is designed for vertical lifting and can operate through a 180° arc, providing flexibility when repositioning or turning plate during bench work operations. It must only be used in the vertical orientation — horizontal lifting with this clamp is not permitted.\u003c\/p\u003e\n\n\u003ch4\u003eSwivel Jaw and Shackle Assembly\u003c\/h4\u003e\n\u003cp\u003eThe Model RSC includes a swivel jaw kit and shackle assembly as replaceable components, allowing worn or damaged parts to be serviced without replacing the entire clamp body. Using only genuine RENFROE replacement parts ensures proper operation and maintains load integrity.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eBench Work on Thick Steel Plate\u003c\/h4\u003e\n\u003cp\u003eThe Model RSC is specifically designed for bench work on steel plates of large thickness weighing less than 1,000 lbs, where a secure locking grip is needed for controlled positioning.\u003c\/p\u003e\n\n\u003ch4\u003eVertical Lifting of Single Steel Plates\u003c\/h4\u003e\n\u003cp\u003eThis clamp is intended for lifting a single plate in a vertical orientation, where the lifting force is directly above and in line with the lifting shackle. Only one plate at a time should be lifted with a vertical clamp.\u003c\/p\u003e\n\n\u003ch4\u003ePlate Turning Through 180° Arc\u003c\/h4\u003e\n\u003cp\u003eThe RSC's 180° lifting capability allows operators to turn a single plate from one horizontal position, through vertical, and back to horizontal — useful when repositioning plate during fabrication or staging operations.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (large thickness)\u003c\/li\u003e\n\u003cli\u003eSteel plate weighing less than 1,000 lbs\u003c\/li\u003e\n\u003cli\u003ePlate thickness range: 1-3\/8 in. to 4-1\/4 in. (RSC-00.50-B)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20353.pdf?v=1785265508\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/20_RSC_20061926.pdf?v=1785265511\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_5897803f-e351-47c0-bc92-5726ef12f364.pdf?v=1785265508\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_5c24c090-0c7b-4ca4-85ef-d416def629af.pdf?v=1785265508\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_e2947feb-9c9a-4c0a-8188-f9d050ccb6a5.pdf?v=1785265508\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_a4f2a2b6-b8c7-4208-8a5a-3b7f12554ee3.pdf?v=1785265516\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the operator manual thoroughly before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift per the pre-lift inspection instructions in the operator manual.\u003c\/li\u003e\n\u003cli\u003eVerify the plate weight is less than 1,000 lbs and within the 0.5-ton rated capacity of the clamp.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness is within the jaw range of 1-3\/8 in. to 4-1\/4 in.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job — do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAttachment\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eAttach the clamp to the edge of the plate in the vertical orientation only.\u003c\/li\u003e\n\u003cli\u003eLock the clamp closed with the locking mechanism — do not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to a crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eLifting\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eLift only one plate at a time — do not lift more than one plate at a time with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with this vertical lift clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance the load — do not lift loads that are not balanced.\u003c\/li\u003e\n\u003cli\u003eDo not rush during lifting operations.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eProhibited Actions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eDo not side load with this clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift a plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eDo not overload the clamp beyond its rated capacity.\u003c\/li\u003e\n\u003cli\u003eUse only genuine RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRSC-00.50-B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifting Type\u003c\/td\u003e\n\u003ctd\u003eVertical \/ 180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\u003ctd\u003eLocking, Screw Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eBench work on steel plates of large thickness, weighing less than 1,000 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Thickness Range\u003c\/td\u003e\n\u003ctd\u003e1-3\/8 in. to 4-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e16.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Jaw Open\u003c\/td\u003e\n\u003ctd\u003e4.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e9.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e7.31 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e3.19 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003e12.31 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e13.12 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Opening Height\u003c\/td\u003e\n\u003ctd\u003e1.56 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Opening Width\u003c\/td\u003e\n\u003ctd\u003e1.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOA Handle Length\u003c\/td\u003e\n\u003ctd\u003e6.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc. — RENFROE Brand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufactured In\u003c\/td\u003e\n\u003ctd\u003eRockford, IL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What plate thickness range does the RSC-00.50-B accommodate?\u003c\/strong\u003e\u003cbr\u003eA: The RSC-00.50-B accommodates plate thicknesses from 1-3\/8 in. up to 4-1\/4 in. If you need a clamp for thinner plate (0 to 3 in.), the RSC-00.50-A is the appropriate model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be used to lift plate horizontally?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model RSC is a vertical lift clamp only. Do not lift plate horizontally with this clamp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I lift more than one plate at a time with this clamp?\u003c\/strong\u003e\u003cbr\u003eA: No. Do not lift more than one plate at a time with a vertical clamp. Lifting from the bottom of a plate stack is also prohibited.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the clamp be modified or repaired with aftermarket parts?\u003c\/strong\u003e\u003cbr\u003eA: The clamp must not be altered, ground, welded, or modified in any manner. Only genuine RENFROE replacement parts should be used to ensure proper operation and maintain load integrity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What replacement parts are available for the Model RSC?\u003c\/strong\u003e\u003cbr\u003eA: The Model RSC has a full set of serviceable components including: Shackle Assembly (RSC-1), Handle Assembly (RSC-2), Screw (RSC-3), Screw Cup Kit (RSC-4), Swivel Jaw Kit (RSC-5), Spring – Screw Cup (RSC-6), and Spring – Swivel Jaw (RSC-7). Refer to the Renfroe Repair Kits Catalog for details.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should the clamp be attached directly to a crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. Always use a flexible connection between the crane hook and the clamp shackle. Do not attach the clamp directly to a crane hook, and do not use a heavy flexible connection.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632447565998,"sku":"RSC-00.50-B","price":1610.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_RSC_Silo_1-1280x1280.webp?v=1785265520"},{"product_id":"caldwell-model-scsm-locking-screw-plate-clamp","title":"Caldwell Model SCSM Locking Screw Plate Clamp","description":"\u003ch2\u003eLocking Screw Plate Clamp – 1-Ton Capacity for Single Plate Turning and Bench Work\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model SCSM is a locking screw-type lifting clamp designed to handle single steel plates through a full 180-degree rotation arc — from horizontal to vertical to horizontal. With a rated capacity of 1 ton (2,000 lbs) and a lightweight 12-lb body, it is built primarily for bench work applications where controlled plate turning is required. It accommodates plate thicknesses up to 0.75 inches and attaches securely via a screw-handle mechanism. This clamp is manufactured by J.C. Renfroe \u0026amp; Sons, Inc., an internationally recognized leader in lifting clamp design and production.\u003c\/p\u003e\n\u003cp\u003eUnlike cam-style or gravity-actuated clamps, the SCSM uses a positive-locking screw handle that must be manually tightened before lifting, giving operators direct control over clamping force during bench-level turning operations. This makes it especially well-suited for lower-volume, precision-oriented work where deliberate attachment and removal are priorities over rapid cycling.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003e180-Degree Rotation Arc\u003c\/h4\u003e\n\u003cp\u003eThe SCSM is specifically engineered to turn a single plate from horizontal to vertical to horizontal through a full 180-degree arc. This capability is essential for fabrication and assembly bench work where plate orientation must be changed without repositioning the entire workpiece.\u003c\/p\u003e\n\n\u003ch4\u003ePositive-Locking Screw Handle\u003c\/h4\u003e\n\u003cp\u003eThe screw handle requires deliberate manual tightening to secure the clamp before a lift, ensuring the clamp cannot engage or disengage unintentionally. This positive-lock design also allows easy removal of the clamp once the plate has been set, reducing handling time at the bench.\u003c\/p\u003e\n\n\u003ch4\u003eLightweight Construction\u003c\/h4\u003e\n\u003cp\u003eAt just 12 lbs, the SCSM is a lightweight tool that minimizes operator fatigue during repeated attach-and-release cycles typical of bench work. Its compact dimensions — with a clamp height of 6.62 inches and overall height of 9.19 inches — make it easy to maneuver in tight work areas.\u003c\/p\u003e\n\n\u003ch4\u003eIntegrated Swivel Shackle\u003c\/h4\u003e\n\u003cp\u003eThe clamp includes a swivel shackle with an inner width of 1.69 inches and shackle thickness of 0.62 inches, providing a secure connection point for rigging. The swivel allows the load to hang plumb during the turning operation without binding the rigging connection.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eSingle Plate Turning on the Bench\u003c\/h4\u003e\n\u003cp\u003eThe SCSM is primarily designed for bench-level plate turning, allowing fabricators to rotate a steel plate from flat to vertical to flat in a single controlled lift operation.\u003c\/p\u003e\n\n\u003ch4\u003eSteel Plate Repositioning\u003c\/h4\u003e\n\u003cp\u003eUsed to reorient steel plate stock during fabrication or assembly processes where changing plate face orientation is required before welding, cutting, or further processing.\u003c\/p\u003e\n\n\u003ch4\u003eLight Overhead Lifting of Steel Plate\u003c\/h4\u003e\n\u003cp\u003eWith a 2,000-lb rated capacity, the clamp can be used for short-distance overhead movement of steel plate in shop environments when connected to a hoist or crane via a flexible rigging connection.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (flat, single-plate lifts only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20355.pdf?v=1785266647\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/23_SCSM_205.23.12.pdf?v=1785266647\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_46aa51c5-b49e-4cf9-b6b6-f30c45bab888.pdf?v=1785266647\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_f62dfe87-6c36-4300-af88-de0adc3f36de.pdf?v=1785266647\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_99723f86-b9b4-4061-ab42-e7222403f354.pdf?v=1785266647\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_fcf307e9-4d73-4d51-8f80-0cd9b2ca9377.pdf?v=1785266652\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore Every Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual (OM 311-SCSM) before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eVisually inspect the clamp before each lift per the inspection instructions in the manual. Do not use a clamp that has been overloaded or shows signs of damage.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness does not exceed the 0.75-inch maximum jaw opening.\u003c\/li\u003e\n\u003cli\u003eConfirm the load does not exceed the 1-ton (2,000 lb) rated capacity.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003ePosition the clamp jaw on the edge of a single steel plate. Do not lift from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eTighten the screw handle firmly to lock the clamp onto the plate before applying any lifting force.\u003c\/li\u003e\n\u003cli\u003eConnect rigging to the shackle using a flexible connection between the crane and the clamp shackle. Do not attach the clamp directly to the crane hook. Do not use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eEnsure the load is balanced before lifting. Use an adequate number of clamps if required for balance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003ePerforming the Plate Turn\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eDuring the turning operation, keep the edge of the plate opposite the clamped edge in contact with a supporting surface (such as a factory floor or bench) at all times.\u003c\/li\u003e\n\u003cli\u003eDo not allow the load on the clamp to exceed one half of the rated capacity during the turning operation.\u003c\/li\u003e\n\u003cli\u003eRotate the plate smoothly through the 180-degree arc (horizontal to vertical to horizontal) without side-loading the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers or safety areas during any phase of the operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eRemoving the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eOnce the plate is resting on a stable surface, release tension on the rigging.\u003c\/li\u003e\n\u003cli\u003eBack off the screw handle to release clamping force and remove the clamp from the plate.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp after the lift and complete any required inspection documentation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eSCSM-01.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1 ton (2,000 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\u003ctd\u003eLocking Screw Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Use\u003c\/td\u003e\n\u003ctd\u003eBench work, single plate turning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation Arc\u003c\/td\u003e\n\u003ctd\u003e180 degrees (horizontal to vertical to horizontal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e12 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Jaw Opening\u003c\/td\u003e\n\u003ctd\u003e0.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Width\u003c\/td\u003e\n\u003ctd\u003e2.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e6.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e3.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003e9.19 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Eye Open Height\u003c\/td\u003e\n\u003ctd\u003e1.88 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOA Handle Length\u003c\/td\u003e\n\u003ctd\u003e6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Inner Width\u003c\/td\u003e\n\u003ctd\u003e1.69 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.62 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eLock the clamp closed before lifting any load. Do not lift with the lock in the open or \"Lock Open\" position.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel at any time.\u003c\/li\u003e\n\u003cli\u003eDo not use a connection that may release the clamp during a lift.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to a crane hook — always use a flexible connection between the crane and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not use large-capacity clamps to lift light loads; use the correct clamp for the job.\u003c\/li\u003e\n\u003cli\u003eDo not overload the clamp beyond its 1-ton rated capacity.\u003c\/li\u003e\n\u003cli\u003eDo not use a clamp that has been overloaded.\u003c\/li\u003e\n\u003cli\u003eDo not side-load this clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not lift a plate horizontally with a vertical lift-only clamp; use the correct clamp type for horizontal lifts.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the load on the clamp must not exceed one half of rated capacity.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the opposite plate edge must remain in contact with a supporting surface.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before and after every lift per the instructions in the Operator's Manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can handle?\u003c\/strong\u003e\u003cbr\u003eA: The SCSM has a maximum jaw opening of 0.75 inches, so it is limited to plates up to 3\/4 inch thick.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be used for horizontal lifting of plate?\u003c\/strong\u003e\u003cbr\u003eA: No. The SCSM is a vertical turn\/lift clamp intended for single-plate turning and vertical lifting. Do not use it to lift plate horizontally — use a clamp rated and designed for horizontal lifts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum load allowed during the plate turning operation?\u003c\/strong\u003e\u003cbr\u003eA: During the turning operation, the load on the clamp must not exceed one half of the rated capacity (i.e., no more than 1,000 lbs during the turn), and the opposite plate edge must remain in contact with a supporting surface throughout.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be attached directly to a crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. Always use a flexible connection between the crane and the clamp shackle. Do not attach the clamp directly to the crane hook, and do not use a heavy flexible connection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are replacement parts available for the SCSM?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The SCSM has serviceable sub-assemblies including the Shackle (SCSM-1), Screw \u0026amp; Handle Assembly (SCSM-2), Screw Cup \u0026amp; Spring (SCSM-3), and Swivel Jaw \u0026amp; Spring (SCSM-4). Refer to the Renfroe Repair Kits Catalog for available parts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What inspections are required before using the SCSM?\u003c\/strong\u003e\u003cbr\u003eA: A visual inspection must be performed by the clamp operator before and after every lift. Additional timed inspections are required based on the clamp's service class. Printable inspection forms are available for download in the Product Documents section above.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632456544430,"sku":"SCSM-01.00-A","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_SCSM_Silo_1-1280x1280.webp?v=1785266656"},{"product_id":"caldwell-model-tla-vertical-locking-lifting-clamp-180-arc","title":"Caldwell Model TLA Vertical Locking Lifting Clamp 180° Arc","description":"\u003ch2\u003eVertical Locking Lifting Clamp with 180° Arc — Full Plate Turning Capability for Steel Fabrication and Handling\u003c\/h2\u003e\n\u003cp\u003eThe Caldwell RENFROE Model TLA (TLA-01.00-A) is a 1-ton capacity vertical lifting clamp engineered for single steel plate turning operations in fabrication shops, steel yards, and heavy construction environments. It is capable of rotating a steel plate from horizontal to vertical to horizontal through a full 180° arc, making it the right tool for controlled plate flipping and repositioning tasks. Designed for contractors and trades professionals who handle structural steel plate regularly, the TLA delivers repeatable, secure lifts with built-in locking redundancy.\u003c\/p\u003e\n\u003cp\u003eUnlike standard vertical lifting clamps, the Model TLA incorporates both a \"Lock Open\" and \"Lock Closed\" feature combined with an auxiliary push-button lock — a dual-security system that simplifies attachment and removal while keeping the clamp positively locked during the lift. It is similar in design to the Model JA but features a serrated cam jaw for enhanced gripping on steel plate surfaces.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003e180° Plate Turning Arc\u003c\/h4\u003e\n\u003cp\u003eThe TLA is specifically engineered to turn a single steel plate from horizontal to vertical to horizontal through a 180° arc. This is critical for fabricators and contractors who need to flip plate stock without manual repositioning or secondary rigging setups, reducing handling time and risk.\u003c\/p\u003e\n\n\u003ch4\u003eLock Open \/ Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe integrated Lock Open and Lock Closed mechanism allows the clamp jaw to be held in either position during attachment and removal. This makes it significantly easier and safer to set and release the clamp on the plate edge, especially in production environments where repeated clamping cycles are required.\u003c\/p\u003e\n\n\u003ch4\u003eAuxiliary Push-Button Lock\u003c\/h4\u003e\n\u003cp\u003eAn auxiliary push-button lock provides a secondary retention point independent of the primary cam lock system. This redundant locking feature adds a critical layer of security during the lifting and turning operation, ensuring the clamp stays positively engaged throughout the 180° rotation.\u003c\/p\u003e\n\n\u003ch4\u003eSerrated Cam Jaw\u003c\/h4\u003e\n\u003cp\u003eThe Model TLA uses a serrated cam jaw, consistent with the proven Model JA design. The serrated profile bites into the steel plate surface under load, increasing grip force as the lift load increases and reducing the risk of slippage during vertical and transitional lifting phases.\u003c\/p\u003e\n\n\u003ch4\u003eCompact, Robust Construction\u003c\/h4\u003e\n\u003cp\u003eAt 14 lbs. with a 7.5 in. clamp body length and 6 in. overall clamp height, the TLA-01.00-A is sized for one-person handling and attachment to plates up to 0.75 in. thick. Its rigid clamp body and precision-fitted components are consistent with Caldwell's RENFROE product line, manufactured in Rockford, IL.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eSteel Plate Flipping in Fabrication Shops\u003c\/h4\u003e\n\u003cp\u003eThe TLA is purpose-built for turning steel plate from one face to the other through a 180° arc, making it the standard tool for plate flipping on fabrication shop floors where plates must be worked on both sides.\u003c\/p\u003e\n\n\u003ch4\u003eStructural Steel Handling\u003c\/h4\u003e\n\u003cp\u003eContractors moving structural steel plate between horizontal storage and vertical positioning for fit-up or welding can use the TLA to make that transition in a single controlled lift without manual intervention.\u003c\/p\u003e\n\n\u003ch4\u003ePlate Repositioning and Staging\u003c\/h4\u003e\n\u003cp\u003eWhen steel plate needs to be staged vertically or repositioned from flat to upright for processing, cutting, or inspection, the TLA's 180° arc capability allows that movement to be accomplished safely with a single clamp and crane.\u003c\/p\u003e\n\n\u003ch4\u003eControlled Vertical Lifting of Single Plates\u003c\/h4\u003e\n\u003cp\u003eThe TLA is designed to lift a single plate at a time in the vertical orientation. It is suited for any operation requiring a secure, locked vertical lift of steel plate up to 1 ton and up to 0.75 in. thick.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20350-351.pdf?v=1785267021\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Renfroe_20OM298-TL-TLA_20092623_20WEB_6927bdae-ba76-4594-96f4-a471a452baec.pdf?v=1785267021\" target=\"_blank\" rel=\"noopener\"\u003eDownload Operator's Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_3cd592a7-43be-4788-a828-7ad0ee47ecd2.pdf?v=1785267021\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_d1103c94-b156-4ffc-8161-55b58b0174ee.pdf?v=1785267020\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_491f679d-3633-4437-a94f-c828f8e73726.pdf?v=1785267021\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_997e0cef-0aed-4a1b-b119-e485c1301441.pdf?v=1785267026\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift, following the inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness is within the clamp's rated range (0 – 0.75 in. for TLA-01.00-A).\u003c\/li\u003e\n\u003cli\u003eConfirm the load does not exceed the 1-ton rated capacity.\u003c\/li\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse the Lock Open feature to hold the cam jaw open for easy placement onto the plate edge.\u003c\/li\u003e\n\u003cli\u003ePosition the clamp on the plate edge, ensuring the plate is fully seated in the jaw.\u003c\/li\u003e\n\u003cli\u003eEngage the Lock Closed feature to secure the cam jaw onto the plate.\u003c\/li\u003e\n\u003cli\u003eEngage the auxiliary push-button lock to provide secondary retention.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003ePerforming the Lift and Turn\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eLift only a single plate at a time — do not attempt to lift more than one plate at a time with this clamp.\u003c\/li\u003e\n\u003cli\u003eDuring the turning operation, ensure the edge of the plate opposite the clamped edge remains in contact with a supporting surface such as the factory floor.\u003c\/li\u003e\n\u003cli\u003eDo not allow the load on the clamp to exceed one half of the rated capacity during the turning operation.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eThe clamp is capable of rotating the plate from horizontal to vertical to horizontal through a 180° arc — do not exceed this arc.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eRemoving the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eOnce the plate is fully supported and the load is relieved from the clamp, disengage the auxiliary push-button lock.\u003c\/li\u003e\n\u003cli\u003eUse the Lock Open feature to open the cam jaw and remove the clamp from the plate.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp after use and store properly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTLA-01.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation Arc\u003c\/td\u003e\n\u003ctd\u003e180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Thickness Range\u003c\/td\u003e\n\u003ctd\u003e0 – 0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock Type\u003c\/td\u003e\n\u003ctd\u003eLock Open \/ Lock Closed with auxiliary push-button lock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e2.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e7.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.81 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e6 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e13.12 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e14 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial Compatibility\u003c\/td\u003e\n\u003ctd\u003eSteel plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eIn Stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the TLA-01.00-A be used to lift a plate horizontally?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model TLA is a vertical turn\/lift clamp. It should not be used to lift plate horizontally — horizontal plate lifting requires a clamp specifically rated and designed for that application.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I lift more than one plate at a time with the TLA?\u003c\/strong\u003e\u003cbr\u003eA: No. The Operator's Manual explicitly states not to lift more than one plate at a time with a vertical clamp. The TLA is designed for single-plate lifting only.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum load allowed on the clamp during the turning operation?\u003c\/strong\u003e\u003cbr\u003eA: During the turning operation, the load on the clamp must not exceed one half of the rated capacity of the clamp. For the TLA-01.00-A, this means the load must not exceed 0.5 tons during the turn.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of the auxiliary push-button lock?\u003c\/strong\u003e\u003cbr\u003eA: The auxiliary push-button lock provides a secondary locking mechanism independent of the primary cam lock, giving an additional layer of security to keep the clamp positively engaged on the plate during the lift and turning operation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are custom capacities or configurations available for the Model TLA?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Caldwell\/RENFROE engineering team can assist with non-standard requirements. Contact them at 800.628.4263 to discuss specific capacity needs or plate configurations beyond the standard product range.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Should I use original RENFROE replacement parts for maintenance?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Operator's Manual specifies to use only RENFROE replacement parts to ensure proper operation of the clamp. Refer to the Renfroe Repair Kits Catalog for available parts.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48632460640430,"sku":"TLA-01.00-A","price":1170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_TLA_Silo_1-1280x1280-1280x1280.webp?v=1785267030"},{"product_id":"caldwell-model-jpa-vertical-180-side-pull-lifting-clamp","title":"Caldwell Model JPA Vertical 180° Side Pull Lifting Clamp","description":"\u003ch2\u003eVertical 180° Side Pull Lifting Clamp — Turn, Flip, and Side-Load Steel Plate with a Single Tool\u003c\/h2\u003e\n\u003cp\u003eThe RENFROE Model JPA (Part No. JPA-01.00-A) is a 1-ton vertical lifting clamp engineered to rotate a single steel plate or structural member from horizontal to vertical to horizontal through a full 180° arc. Designed for demanding steel fabrication and erection environments, it incorporates a push-button auxiliary lock and a pivoting lifting shackle that allows side loading up to 90° off vertical. This model is part of a proven product family with capacities ranging up to 50 tons, making it a versatile choice for contractors handling a wide range of plate sizes and thicknesses.\u003c\/p\u003e\n\u003cp\u003eUnlike standard vertical lift-only clamps, the Model JPA combines 180° plate-turning capability with rated side-pull performance in a single locking clamp body — eliminating the need to swap tools when load orientation changes. The lock-open\/lock-closed feature also speeds up attachment and removal, reducing rigging time on the job site.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003e180° Arc Plate Turning\u003c\/h4\u003e\n\u003cp\u003eThe Model JPA is purpose-built for turning a single plate or structural member from horizontal to vertical to horizontal through a 180° arc. This is critical for steel fabricators and erectors who need to flip or orient plate stock without additional rigging setups or repositioning.\u003c\/p\u003e\n\n\u003ch4\u003ePivoting Shackle with Rated Side-Load Capacity\u003c\/h4\u003e\n\u003cp\u003eThe pivoting lifting shackle permits side loading at 100% of rated capacity from vertical to 30°, 75% of rated capacity between 30° and 45°, and 50% of rated capacity between 45° and 90°. This built-in de-rating system gives contractors clear, defined load limits when working at angles, supporting safer rigging decisions in the field.\u003c\/p\u003e\n\n\u003ch4\u003ePush-Button Auxiliary Lock\u003c\/h4\u003e\n\u003cp\u003eAn integrated push-button auxiliary lock secures the clamp in the closed position during lifting. This adds a redundant safety mechanism that helps prevent accidental release, which is especially important during plate-turning operations where the clamp orientation changes throughout the lift.\u003c\/p\u003e\n\n\u003ch4\u003eLock Open \/ Lock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe lock-open\/lock-closed functionality allows the operator to easily attach and remove the clamp from the workpiece without fighting the jaw spring. This reduces setup time and improves efficiency when moving between multiple lifts on the same job.\u003c\/p\u003e\n\n\u003ch4\u003eScalable Capacity Across the Model JPA Family\u003c\/h4\u003e\n\u003cp\u003eWhile this unit is rated at 1 ton, the Model JPA product family offers capacities up to 50 tons. Contractors can standardize on a single clamp type across different project scales, knowing that heavier-duty versions with the same operating logic are available when needed.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eSteel Plate Turning and Flipping\u003c\/h4\u003e\n\u003cp\u003eUse the JPA to rotate flat steel plate from horizontal to vertical to horizontal in a single rigging operation, eliminating the need to re-rig or reposition the load mid-turn.\u003c\/p\u003e\n\n\u003ch4\u003eVertical Lifting of Structural Members\u003c\/h4\u003e\n\u003cp\u003eAttach the clamp to the edge of a structural steel plate or member and lift vertically using the pivoting shackle, keeping the load stable and the clamp properly oriented throughout the lift.\u003c\/p\u003e\n\n\u003ch4\u003eAngled or Side-Pull Lifts\u003c\/h4\u003e\n\u003cp\u003eThe pivoting shackle allows the rigging line to be offset up to 90° from vertical while maintaining a defined rated capacity, making the JPA suitable for lifts where the crane hook cannot be positioned directly above the load.\u003c\/p\u003e\n\n\u003ch4\u003eSteel Fabrication Shop Operations\u003c\/h4\u003e\n\u003cp\u003eIdeal for moving and orienting plate stock on the shop floor, where plates frequently need to be flipped for welding, cutting, or inspection on both faces.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate (single plate only — do not use to lift from a plate stack)\u003c\/li\u003e\n\u003cli\u003eStructural steel members with plate-type edges within the jaw capacity range\u003c\/li\u003e\n\u003cli\u003eFlat plate with thickness from 0 in. (minimum) to 0.75 in. (maximum) for this model\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20356-357.pdf?v=1785268730\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM0820-J-Series_f0545992-77b6-4883-920e-4a4893b8ca8c.pdf?v=1785268727\" target=\"_blank\" rel=\"noopener\"\u003eDownload Operator's Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_39193441-6825-46c2-8e42-c5e831336536.pdf?v=1785268726\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_37fd382e-3332-4374-b3cb-6fa9db48d06d.pdf?v=1785268726\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_35c294d1-85ed-4050-9c97-8ebc1c290830.pdf?v=1785268726\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_2ac759fe-b5ff-4e2c-aa20-aae8897292c0.pdf?v=1785268736\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore Each Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eVerify the plate thickness falls within the clamp's rated range (0 in. minimum to 0.75 in. maximum for JPA-01.00-A).\u003c\/li\u003e\n\u003cli\u003eConfirm the load does not exceed the clamp's rated capacity of 1 ton for vertical lifts, and apply the appropriate de-rating if performing a side-pull lift.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to the crane hook or use a heavy rigid connection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n\u003cli\u003eUse the lock-open feature to hold the jaw open for easy attachment to the plate edge.\u003c\/li\u003e\n\u003cli\u003ePosition the clamp on the edge of a single plate — never lift from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eEngage the lock-closed feature and confirm the push-button auxiliary lock is engaged before applying any load.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003ePerforming the Lift or Plate Turn\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eFor vertical lifts, ensure the rigging is directly above and in line with the lifting shackle.\u003c\/li\u003e\n\u003cli\u003eFor side-pull lifts, apply the correct de-rated capacity based on the angle of pull: 100% of rated capacity at 0°–30°, 75% at 30°–45°, 50% at 45°–90°.\u003c\/li\u003e\n\u003cli\u003eDuring plate-turning operations, maintain contact between the opposite plate edge and a supporting surface (such as the shop floor) and keep the load on the clamp at or below one half of the clamp's rated capacity during the turn.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not rush — lift only one plate at a time.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAfter the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSecure the load before removing the clamp.\u003c\/li\u003e\n\u003cli\u003eUse the lock-open feature to release the clamp from the plate edge.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp following each use per the Operator's Manual maintenance schedule.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts when repairs are needed to ensure proper clamp operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel \/ Part Number\u003c\/td\u003e\n\u003ctd\u003eJPA-01.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArc of Rotation\u003c\/td\u003e\n\u003ctd\u003e180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (0°–30°)\u003c\/td\u003e\n\u003ctd\u003e100% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (30°–45°)\u003c\/td\u003e\n\u003ctd\u003e75% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Load Capacity (45°–90°)\u003c\/td\u003e\n\u003ctd\u003e50% of rated capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e2.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Body Length\u003c\/td\u003e\n\u003ctd\u003e7.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e3.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e2.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e3.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e7 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Plate Length\u003c\/td\u003e\n\u003ctd\u003e13.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e20 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Capability (Model Family)\u003c\/td\u003e\n\u003ctd\u003eUp to 50 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Type\u003c\/td\u003e\n\u003ctd\u003ePush-button auxiliary lock \/ Lock Open-Lock Closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc. (RENFROE brand)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model JPA-01.00-A be used for side-pull lifts at full rated capacity?\u003c\/strong\u003e\u003cbr\u003eA: Yes, but only within the 0°–30° range from vertical. Side loading between 30° and 45° requires de-rating to 75% of rated capacity, and between 45° and 90° requires de-rating to 50% of rated capacity. Do not exceed these de-rated limits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp lift more than one plate at a time?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model JPA is designed to lift a single plate or member only. Do not use it to lift from the bottom of a plate stack or to handle multiple plates simultaneously.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What plate thickness range is compatible with the JPA-01.00-A?\u003c\/strong\u003e\u003cbr\u003eA: This specific model accommodates plate thickness from 0 in. (minimum) to 0.75 in. (maximum). Other JPA-01.00 variants (B through E) cover thicker plate ranges up to 2 in. — consult the model specifications table in the catalog for the correct variant for your plate thickness.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is factory training available for this clamp?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Caldwell Group \/ RENFROE offers two-day training courses covering safe use, inspection, and maintenance of RENFROE clamps. Classes can be held at your facility or at the Beloit, WI headquarters. Contact RENFROE at 815.229.5667 for details.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What replacement parts should be used when the clamp requires repair?\u003c\/strong\u003e\u003cbr\u003eA: Only genuine RENFROE replacement parts should be used to ensure proper operation. Do not grind, weld, or modify the clamp in any manner. Refer to the Renfroe Repair Kits Catalog for available parts.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"1","offer_id":48632483840174,"sku":"JPA-01.00-A","price":1535.0,"currency_code":"USD","in_stock":true},{"title":"2","offer_id":48632483872942,"sku":"JPA-02.00-A","price":1977.0,"currency_code":"USD","in_stock":true},{"title":"4","offer_id":48632483905710,"sku":"JPA-04.00-A","price":2530.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_JPA_Silo_1-1280x1280-1280x1280.webp?v=1785268739"},{"product_id":"caldwell-model-lpa-vertical-180-side-pull-lifting-clamp","title":"Caldwell Model LPA Vertical 180° Side Pull Lifting Clamp","description":"\u003ch2\u003eVertical 180° Side Pull Lifting Clamp — Ergonomic Plate Turning for Demanding Lift Operations\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model LPA (LPA-01.00-A) is a 1-ton capacity vertical lifting clamp engineered to turn a single plate or structural member from horizontal to vertical to horizontal through a full 180° arc. Designed for contractors and fabrication professionals who need precise, controlled plate-turning capability, this clamp features an auxiliary push button lock and a pivoting shackle that allows side loading up to 90°. At 5.3 lbs. and built for single-plate lifting, it delivers the control and security required for rigorous jobsite and fabrication environments.\u003c\/p\u003e\n\u003cp\u003eUnlike standard vertical lift-only clamps, the Model LPA incorporates a pivoting shackle with de-rated side loading capacity, giving operators the flexibility to angle their lift up to 90° from vertical without switching equipment. As a lightweight version of the JPA series, it offers comparable functionality in a more manageable package for lower-capacity applications up to 1 ton.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003e180° Arc Turning Capability\u003c\/h4\u003e\n\u003cp\u003eThe Model LPA is specifically designed to turn a single plate or member from horizontal to vertical to horizontal through a 180° arc. This allows fabricators and contractors to reposition heavy plate stock without additional rigging changes or equipment swaps, streamlining workflow on the shop floor or jobsite.\u003c\/p\u003e\n\u003ch4\u003ePivoting Shackle with Side Load De-Rating\u003c\/h4\u003e\n\u003cp\u003eThe integrated pivoting shackle permits side loading of the lifting shackle at 100% of rated capacity from vertical to 30°, 75% of rated capacity between 30° and 45°, and 50% of rated capacity between 45° and 90°. This built-in flexibility accommodates varied rigging angles without requiring a separate side-pull clamp, reducing equipment inventory and setup time.\u003c\/p\u003e\n\u003ch4\u003eAuxiliary Push Button Lock (Lock Open – Lock Closed)\u003c\/h4\u003e\n\u003cp\u003eThe auxiliary push button lock provides a positive locking mechanism in both the open and closed positions. The \"Lock Open – Lock Closed\" feature makes it faster and easier to attach and remove the clamp from a plate, reducing handling time and improving operator safety during setup and breakdown.\u003c\/p\u003e\n\u003ch4\u003eErgonomic Design\u003c\/h4\u003e\n\u003cp\u003eThe Model LPA is explicitly designed as an ergonomic lifting clamp, balancing a compact form factor with a 1-ton working capacity. At 5.3 lbs., it minimizes operator fatigue during repeated attachment and removal cycles over the course of a shift.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003ePlate Turning in Steel Fabrication\u003c\/h4\u003e\n\u003cp\u003eTurn single steel plates or structural members from horizontal to vertical to horizontal through a 180° arc, supporting efficient repositioning during fabrication and assembly operations.\u003c\/p\u003e\n\u003ch4\u003eVertical Lifting of Single Plate Stock\u003c\/h4\u003e\n\u003cp\u003eLift individual plates vertically with a secure, locked grip — the push button lock ensures the clamp remains positively engaged throughout the lift cycle.\u003c\/p\u003e\n\u003ch4\u003eAngled or Side-Pull Lifting Scenarios\u003c\/h4\u003e\n\u003cp\u003eWhere rigging geometry requires a non-vertical pull, the pivoting shackle accommodates side loading up to 90° from vertical at de-rated capacities, making the LPA suitable for constrained lift paths or off-angle pick points.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle steel plates\u003c\/li\u003e\n\u003cli\u003eSingle structural steel members\u003c\/li\u003e\n\u003cli\u003eFlat plate stock up to 0.75 in. maximum thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20358.pdf?v=1785269400\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM-L-Series_3dd0c227-e36c-4a67-b39a-3290e6ef80b7.pdf?v=1785269400\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_9e55637b-66b5-4bf0-8834-b3e9ebb98b5a.pdf?v=1785269400\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_fa9c6db7-ec71-46a9-9f40-bdd90c925a8f.pdf?v=1785269399\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_5a68e7a2-05f6-4068-ac42-dce085d18618.pdf?v=1785269400\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_57cd2213-0413-4318-b27c-bd7cc6fd2084.pdf?v=1785269405\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eAttaching the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eEngage the auxiliary push button lock to the Lock Open position to open the jaw for attachment.\u003c\/li\u003e\n\u003cli\u003ePosition the clamp jaw over the edge of the single plate or member, ensuring the plate thickness does not exceed 0.75 in.\u003c\/li\u003e\n\u003cli\u003eEngage the auxiliary push button lock to the Lock Closed position to secure the clamp to the plate before lifting.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003ePerforming the Lift or Turn\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eConnect the lifting shackle to the rigging. Use a flexible connection between the crane hook and the clamp shackle — do not attach the clamp directly to the crane hook.\u003c\/li\u003e\n\u003cli\u003eFor vertical lifts, apply load within the 1-ton rated capacity.\u003c\/li\u003e\n\u003cli\u003eFor side-pull or angled lifts, observe de-rated capacities: 100% (1 ton) from vertical to 30°; 75% (0.75 ton) from 30° to 45°; 50% (0.5 ton) from 45° to 90°.\u003c\/li\u003e\n\u003cli\u003eFor 180° plate turning, keep the opposite edge of the plate in contact with a supporting surface during the turning operation and ensure the load does not exceed the rated capacity for the rigging angle in use.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eRemoving the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSet the load down securely before removing the clamp.\u003c\/li\u003e\n\u003cli\u003eEngage the auxiliary push button lock to the Lock Open position.\u003c\/li\u003e\n\u003cli\u003eRemove the clamp from the plate edge.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eLPA-01.00-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1 ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArc Range\u003c\/td\u003e\n\u003ctd\u003e180°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock Type\u003c\/td\u003e\n\u003ctd\u003eAuxiliary push button lock (Lock Open – Lock Closed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Loading Capacity (0°–30°)\u003c\/td\u003e\n\u003ctd\u003e100% of rated capacity (1 ton)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Loading Capacity (30°–45°)\u003c\/td\u003e\n\u003ctd\u003e75% of rated capacity (0.75 ton)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Loading Capacity (45°–90°)\u003c\/td\u003e\n\u003ctd\u003e50% of rated capacity (0.5 ton)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA – Maximum Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB – Jaw Length\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC – Clamp Body Length\u003c\/td\u003e\n\u003ctd\u003e5.13 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD – Overall Length\u003c\/td\u003e\n\u003ctd\u003e8.69 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE – Shackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e1.13 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF – Overall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e4.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG – Clamp Width\u003c\/td\u003e\n\u003ctd\u003e2.44 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH – Jaw Height\u003c\/td\u003e\n\u003ctd\u003e1.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ – Shackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e5.3 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp lift more than one plate at a time?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model LPA is a vertical clamp designed to lift a single plate or member at a time. Lifting more than one plate simultaneously is not permitted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness the LPA-01.00-A will accommodate?\u003c\/strong\u003e\u003cbr\u003eA: The maximum plate thickness is 0.75 in. (Dimension A).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the clamp be side-loaded, and does the capacity change?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The pivoting shackle permits side loading up to 90° from vertical. Capacity is de-rated as follows: 100% from vertical to 30°, 75% from 30° to 45°, and 50% from 45° to 90°.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the \"Lock Open – Lock Closed\" feature do?\u003c\/strong\u003e\u003cbr\u003eA: The auxiliary push button lock can be set to Lock Open for easy attachment and removal of the clamp from the plate, and to Lock Closed to positively secure the clamp during lifting. The clamp must never be lifted with the lock in the open position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this clamp suitable for horizontal plate lifting?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model LPA is a vertical lift and turn clamp. It should not be used to lift a plate horizontally. Use the 180° turn capability only as described — rotating a plate from horizontal to vertical to horizontal with the opposite plate edge in contact with a supporting surface during the turn.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should the clamp be attached directly to the crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. A flexible connection must be used between the crane hook and the clamp shackle. Do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"1","offer_id":48632492163246,"sku":"LPA-01.00-A","price":1033.0,"currency_code":"USD","in_stock":true},{"title":"2","offer_id":48632492196014,"sku":"LPA-02.00-A","price":152.67,"currency_code":"USD","in_stock":true},{"title":"3","offer_id":48632492228782,"sku":"LPA-03.00-A","price":1806.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_LPA_Silo_1-1280x1280.webp?v=1785269410"},{"product_id":"caldwell-model-scpa-locking-screw-type-vertical-side-pull-lifting-clamp","title":"Caldwell Model SCPA Locking Screw Type Vertical \u0026 Side Pull Lifting Clamp","description":"\u003ch2\u003eLocking Screw Type Vertical \u0026amp; Side Pull Lifting Clamp — 180° Arc Plate Handling for Rolling \u0026amp; Forming Operations\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model SCPA is a locking, screw-type vertical and side pull lifting clamp engineered for steel plate handling from horizontal to vertical to horizontal through a full 180-degree arc. Designed for contractors and fabricators working with rolling and forming machines, this clamp delivers reliable single-plate control across demanding repositioning tasks. The SCPA-00.50-A is rated at 0.5 tons capacity and accepts plate thicknesses up to 0.75 inches, making it a precise tool for lighter steel plate work. Manufactured by The Caldwell Group, Inc. in Rockford, IL under the trusted Renfroe brand.\u003c\/p\u003e\n\u003cp\u003eUnlike vertical-only lifting clamps, the SCPA's 180-degree arc range and spring-loaded pivoting cam jaw allow it to function as both a vertical lift and a horizontal plate handler when used in pairs, sets of pairs, or a tripod arrangement — giving trades professionals a single clamp solution that covers multiple positioning scenarios on the job site or in the fabrication shop.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003e180-Degree Arc Capability\u003c\/h4\u003e\n\u003cp\u003eThe SCPA handles steel plate from horizontal to vertical to horizontal through a full 180-degree arc. This range makes it purpose-built for rolling and forming machine operations where plate orientation must change during the handling process.\u003c\/p\u003e\n\u003ch4\u003eSpring-Loaded Pivoting Cam Jaw\u003c\/h4\u003e\n\u003cp\u003eThe spring-loaded pivoting cam jaw automatically \"cams in\" when a load is applied to the lifting shackle, increasing grip as the load increases. This self-engaging design reduces the risk of unintended release during lifting and repositioning.\u003c\/p\u003e\n\u003ch4\u003eLocking Screw-Type Design\u003c\/h4\u003e\n\u003cp\u003eThe screw-type locking mechanism allows the operator to set and secure the jaw opening to the plate thickness before the lift. This provides a positive mechanical lock that does not rely solely on load pressure, adding an additional layer of security for controlled lifts.\u003c\/p\u003e\n\u003ch4\u003eHorizontal Plate Handling in Pairs or Tripod Arrangement\u003c\/h4\u003e\n\u003cp\u003eWhen used in pairs, sets of pairs, or a tripod arrangement, the SCPA is capable of handling plate in the horizontal position. This versatility eliminates the need for a separate horizontal lifting clamp on jobs that require both orientations.\u003c\/p\u003e\n\u003ch4\u003eWider Jaw Opening\u003c\/h4\u003e\n\u003cp\u003eWith a maximum jaw opening of 0.75 inches, the SCPA provides a broader range of plate thicknesses it can engage compared to standard screw clamps. This makes it adaptable across a variety of plate stock sizes in fabrication environments.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eRolling Machine Plate Handling\u003c\/h4\u003e\n\u003cp\u003eThe SCPA is specifically developed to handle plate at rolling machines, where steel must be repositioned through a 180-degree arc during the forming process.\u003c\/p\u003e\n\u003ch4\u003eForming Machine Operations\u003c\/h4\u003e\n\u003cp\u003eUsed at forming machines where plate must be fed, turned, or repositioned, the SCPA's arc capability and cam jaw provide controlled plate management throughout the operation.\u003c\/p\u003e\n\u003ch4\u003eSingle Plate Vertical Lifting\u003c\/h4\u003e\n\u003cp\u003eThe clamp performs vertical lifts of single steel plates, with the cam jaw engaging automatically under load for secure, controlled handling.\u003c\/p\u003e\n\u003ch4\u003eHorizontal Plate Lifting in Pairs or Tripod\u003c\/h4\u003e\n\u003cp\u003eWhen rigged in pairs, sets of pairs, or a tripod arrangement, the SCPA can lift steel plate in the horizontal position, covering flat-orientation transport and positioning tasks.\u003c\/p\u003e\n\u003ch4\u003ePlate Turning Operations\u003c\/h4\u003e\n\u003cp\u003eThe 180-degree arc range makes the SCPA suitable for turning steel plate from flat to upright and back, a common requirement in structural steel fabrication and plate processing facilities.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20359.pdf?v=1785269408\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/CaldwellRenfroe_OM920-SCPA-SCP_458e54b4-a29f-4d3c-bef9-5dad45b2577d.pdf?v=1785269408\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_fc79d7b8-bb5d-4e27-982f-df32ea09d75a.pdf?v=1785269408\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_5e6f5e81-980d-45a5-bccd-15933ca86419.pdf?v=1785269407\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_fd6b9707-aad2-45e7-8f4c-139b0a7206fa.pdf?v=1785269407\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_b4cd8d70-3a71-482c-acb2-2b306f691642.pdf?v=1785269413\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eBefore Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eConfirm the plate thickness does not exceed the maximum jaw opening of 0.75 inches.\u003c\/li\u003e\n\u003cli\u003eConfirm the load does not exceed the rated capacity of 0.5 tons.\u003c\/li\u003e\n\u003cli\u003eUse correct clamp for the job; do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eSetting the Clamp\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eLock the clamp closed with the screw lock before attaching to the plate; do not lift with the lock in the open position.\u003c\/li\u003e\n\u003cli\u003eAttach the clamp to the edge of the steel plate — do not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle; do not attach the clamp directly to the crane hook or use a heavy flexible connection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003ePerforming the Lift\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eUse enough clamps to balance the load; do not lift loads that are not balanced.\u003c\/li\u003e\n\u003cli\u003eFor horizontal plate handling, use clamps in pairs, sets of pairs, or a tripod arrangement.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the edge of the plate opposite the edge to which the clamp is attached should always be in contact with a supporting surface such as a factory floor, and the load on the clamp should not exceed one-half rated capacity during the turn.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eAfter Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eInspect the clamp after each use and follow maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eUse only Renfroe replacement parts to assure proper operation of the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not alter the clamp; do not grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eSCPA-00.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Jaw Open\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e4.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length\u003c\/td\u003e\n\u003ctd\u003e6.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e1.88 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e2.38 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\u003ctd\u003eLocking, Screw Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArc Range\u003c\/td\u003e\n\u003ctd\u003e180 degrees (horizontal to vertical to horizontal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJaw Type\u003c\/td\u003e\n\u003ctd\u003eSpring-loaded pivoting cam jaw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePivoting Shackle Assembly\u003c\/td\u003e\n\u003ctd\u003eAvailable on 3 ton capacity and larger only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n\u003cli\u003eLock clamp closed with lock; do not lift with lock in open position.\u003c\/li\u003e\n\u003cli\u003eDo not attach clamp directly to crane hook or use a heavy flexible connection — use a flexible connection between crane hook and clamp shackle.\u003c\/li\u003e\n\u003cli\u003eUse clamps within their rated capacity; do not overload clamps.\u003c\/li\u003e\n\u003cli\u003eUse enough clamps to balance load; do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eDo not lift more than one plate at a time with a vertical clamp.\u003c\/li\u003e\n\u003cli\u003eDo not side load with a straight shackle clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate horizontally with a vertical-lift-only clamp.\u003c\/li\u003e\n\u003cli\u003eDo not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not alter the clamp; do not grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eUse only Renfroe replacement parts to assure proper operation.\u003c\/li\u003e\n\u003cli\u003eInspect clamp before each lift and follow inspection and maintenance instructions.\u003c\/li\u003e\n\u003cli\u003eDuring turning operations, the edge of the plate opposite the clamped edge should remain in contact with a supporting surface, and the load should not exceed one-half rated capacity during the turn.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the SCPA-00.50-A be used to lift plate horizontally?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the SCPA can handle plate horizontally when used in pairs, sets of pairs, or in a tripod arrangement. It is not designed for horizontal lifting as a single clamp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can handle?\u003c\/strong\u003e\u003cbr\u003eA: The SCPA-00.50-A has a maximum jaw opening of 0.75 inches, which defines the maximum plate thickness it can accept.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the pivoting shackle assembly included on the 0.5 ton model?\u003c\/strong\u003e\u003cbr\u003eA: No. The pivoting shackle assembly is available only on clamps of 3 tons capacity and larger. The 0.5 ton SCPA-00.50-A does not include a pivoting shackle assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the cam jaw engage during a lift?\u003c\/strong\u003e\u003cbr\u003eA: The spring-loaded pivoting cam jaw automatically \"cams in\" — increases its grip — when a load is applied to the lifting shackle, providing a self-tightening hold proportional to the applied load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be used at rolling and forming machines?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The SCPA is specifically developed for handling plate at rolling and forming machines, with its 180-degree arc capability supporting the plate repositioning these operations require.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are larger capacities available in the SCPA model line?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The SCPA model is available in 0.5, 1.5, 3, 6, 10, and 15 ton capacities, with 20, 30, 50, 100, and 150 ton capacities available upon request.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"0.5","offer_id":48632492294318,"sku":"SCPA-00.50-A","price":1082.0,"currency_code":"USD","in_stock":true},{"title":"6.0","offer_id":48632492327086,"sku":"SCPA-06.00-A","price":2266.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_SCPA_Silo_1-1280x1280.webp?v=1785269417"},{"product_id":"caldwell-model-ast-non-locking-structural-shape-lifting-clamp","title":"Caldwell Model AST Non-Locking Structural Shape Lifting Clamp","description":"\u003ch2\u003eNon-Locking Structural Shape Lifting Clamp — Precision Control for Beam Lifting, Turning \u0026amp; Stacking\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model AST Non-Locking Structural Shape Lifting Clamp (AST-01.50-A) is engineered for lifting, turning, and stacking lightweight beams and structural shapes with a 1.5-ton capacity. Designed for use in steel erection, fabrication, and structural staging operations, it is built for contractors and trades professionals who need reliable, controlled handling of I-beams, channels, and other structural profiles. A constant tension must be maintained on the lifting shackle during all lifting operations.\u003c\/p\u003e\n\u003cp\u003eThe Model AST's horizontal shackle design sets it apart from standard vertical plate clamps by enabling the clamp to be positioned with the shackle over the web and between the flanges of a beam, allowing the load to be lifted in a near-horizontal position. This geometry also permits the beam to be lifted from a horizontal position, turned 90°, and raised to a vertical position — a capability that general-purpose plate clamps do not provide.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003eHorizontal Shackle Design for Beam Web Positioning\u003c\/h4\u003e\n\u003cp\u003eThe horizontal shackle allows the clamp to be placed with the shackle positioned over the web and between the flanges of a beam or structural shape. This configuration gives operators direct load control when lifting beams in a near-horizontal orientation, reducing the risk of load shift during pick-and-carry operations.\u003c\/p\u003e\n\u003ch4\u003e90-Degree Turn and Vertical Raise Capability\u003c\/h4\u003e\n\u003cp\u003eWith the clamp placed so the shackle overhangs the flange, a horizontally positioned beam can be lifted, rotated 90°, and raised to a vertical position in a single rigging setup. This eliminates the need to re-rig the load mid-operation, saving time and reducing handling risk on the job site.\u003c\/p\u003e\n\u003ch4\u003eConstant Tension Operation\u003c\/h4\u003e\n\u003cp\u003eThe Model AST requires constant tension to be applied to the lifting shackle whenever a load is being lifted. This design characteristic ensures the cam gripping mechanism remains engaged throughout the lift, maintaining a secure hold on the structural member.\u003c\/p\u003e\n\u003ch4\u003ePurpose-Built for Lightweight Structural Shapes\u003c\/h4\u003e\n\u003cp\u003eDeveloped specifically for lightweight beams and structural shapes, the AST-01.50-A is rated at 1.5 tons and weighs 20 lbs — making it practical for field use without being cumbersome. Its compact clamp dimensions (8.5 in. height, 7 in. length, 2.56 in. width) suit standard structural profiles encountered in commercial and industrial construction.\u003c\/p\u003e\n\u003ch4\u003eCam Gripping Mechanism\u003c\/h4\u003e\n\u003cp\u003eThe clamp features a gripping cam and swivel jaw assembly that engages the structural shape securely during lifting. The cam pin and shackle pin bushing are discrete, replaceable components, supporting long service life and field-level maintenance using manufacturer repair kits.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003eLifting Structural Beams in a Near-Horizontal Position\u003c\/h4\u003e\n\u003cp\u003eThe clamp is placed with the shackle over the web and between the flanges, allowing I-beams and similar shapes to be hoisted while lying nearly flat — useful for placing beams into position on a structure without excessive vertical swing.\u003c\/p\u003e\n\u003ch4\u003eTurning Beams from Horizontal to Vertical\u003c\/h4\u003e\n\u003cp\u003eWhen a beam is lying flat on a surface and the clamp is positioned with the shackle overhanging the flange, the beam can be lifted, turned 90°, and raised to a vertical position in a controlled sequence.\u003c\/p\u003e\n\u003ch4\u003eStacking Lightweight Structural Shapes\u003c\/h4\u003e\n\u003cp\u003eThe AST is designed for stacking operations where lightweight beams and shapes need to be placed precisely in storage or staging areas, with the clamp providing controlled positioning throughout.\u003c\/p\u003e\n\u003ch4\u003eSteel Fabrication and Staging Operations\u003c\/h4\u003e\n\u003cp\u003eFabrication shops and structural staging yards use this clamp to handle beams and shapes during processing, transport between workstations, and pre-assembly staging.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight steel I-beams\u003c\/li\u003e\n\u003cli\u003eStructural channels\u003c\/li\u003e\n\u003cli\u003eStructural angles and other rolled steel shapes\u003c\/li\u003e\n\u003cli\u003eSteel members with plate thickness up to 0.75 in.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20365.pdf?v=1785327009\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/33_AST-L_205.18.12.pdf?v=1785327009\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_2ecc9ecd-774d-43e7-afca-3d0982733d3a.pdf?v=1785327009\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_a40fd600-f594-4de7-b91d-236b1f7fd137.pdf?v=1785327009\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_bb3395b5-95e7-4a6e-91f4-5e9050e3a8be.pdf?v=1785327009\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_2713c0b7-f248-4f13-b5d0-5cfbf466823a.pdf?v=1785327014\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\u003ch4\u003eLifting a Beam in a Near-Horizontal Position\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRead and understand the Operator's Manual (OM 211-AST\/L) before putting the clamp into service.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift per the pre-lift inspection instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003ePlace the clamp on the beam with the shackle positioned over the web and between the flanges.\u003c\/li\u003e\n\u003cli\u003eConnect rigging from the crane to the lifting shackle using a flexible connection — do not attach the clamp directly to the crane hook.\u003c\/li\u003e\n\u003cli\u003eApply constant tension to the lifting shackle before and throughout the lift to keep the cam mechanism engaged.\u003c\/li\u003e\n\u003cli\u003eLift the beam to the desired position.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eTurning a Beam from Horizontal to Vertical\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eWith the beam lying in a horizontal position, place the clamp with the shackle overhanging the flange.\u003c\/li\u003e\n\u003cli\u003eConnect rigging to the lifting shackle using a flexible connection.\u003c\/li\u003e\n\u003cli\u003eApply constant tension to the shackle and begin the lift.\u003c\/li\u003e\n\u003cli\u003eLift and turn the beam 90° until it is raised to a vertical position.\u003c\/li\u003e\n\u003cli\u003eEnsure the load is balanced and within the 1.5-ton rated capacity throughout the operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eAST-01.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eModel AST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking Type\u003c\/td\u003e\n\u003ctd\u003eNon-Locking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e20 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e8.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Length\u003c\/td\u003e\n\u003ctd\u003e7 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp to Cam Length\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.56 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePivot Length\u003c\/td\u003e\n\u003ctd\u003e2.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.63 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRead and understand the Operator's Manual before putting the clamp into service; take the tool to your immediate supervisor before first use.\u003c\/li\u003e\n\u003cli\u003eConstant tension must be applied to the lifting shackle at all times when lifting a load.\u003c\/li\u003e\n\u003cli\u003eDo not lift over workmen or personnel.\u003c\/li\u003e\n\u003cli\u003eDo not attach the clamp directly to the crane hook; always use a flexible connection between the crane and the clamp shackle.\u003c\/li\u003e\n\u003cli\u003eDo not use a heavy flexible connection.\u003c\/li\u003e\n\u003cli\u003eUse the correct clamp for the job; do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n\u003cli\u003eUse an adequate number of clamps to balance the load; do not lift unbalanced loads.\u003c\/li\u003e\n\u003cli\u003eDo not overload the clamp beyond its rated 1.5-ton capacity.\u003c\/li\u003e\n\u003cli\u003eInspect the clamp before each lift and follow all inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n\u003cli\u003eDo not use a clamp that has been overloaded.\u003c\/li\u003e\n\u003cli\u003eDo not side-load with this clamp.\u003c\/li\u003e\n\u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003cli\u003eUse only RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n\u003cli\u003eDo not misuse: do not lift plate from the bottom of a plate stack.\u003c\/li\u003e\n\u003cli\u003eDo not improvise; always use the correct clamp for the job.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the Model AST and the Model ASTL?\u003c\/strong\u003e\u003cbr\u003eA: Both the Model AST (non-locking) and Model ASTL were developed for the same primary purpose — lifting, turning, and stacking lightweight beams and structural shapes while constant tension is applied to the lifting shackle. The ASTL designation indicates a locking-type variant; the AST-01.50-A covered here is the non-locking version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Must tension always be applied to the shackle during lifting?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model AST requires constant tension to be applied to the lifting shackle whenever a load is being lifted. Releasing tension can disengage the cam gripping mechanism and result in an unsafe condition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be attached directly to the crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. The Operator's Manual specifies that a flexible connection must always be used between the crane and the clamp shackle. Direct attachment to the crane hook is not permitted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp will accept?\u003c\/strong\u003e\u003cbr\u003eA: The AST-01.50-A accepts material up to 0.75 in. plate thickness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can replacement parts be sourced for this clamp?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The clamp consists of discrete replaceable components including the gripping cam, cam pin, swivel jaw, lifting shackle, shackle pin, and shackle pin bushing. Refer to the Renfroe Repair Kits Catalog for compatible repair kits.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48651506385070,"sku":"AST-01.50-A","price":919.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_AST_Silo_1-1280x1280-1280x1280.webp?v=1785327018"},{"product_id":"caldwell-model-astl-structural-shape-lifting-clamp-non-locking-type","title":"Caldwell Model ASTL Structural Shape Lifting Clamp Non-Locking Type","description":"\u003ch2\u003eStructural Shape Lifting Clamp Non-Locking Type — Remote-Release Design for Turning, Lifting \u0026amp; Stacking Beams\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model ASTL Structural Shapes Lifting Clamp (Non-Locking Type) is a 1.5-ton capacity clamp engineered for lifting, turning, and stacking lightweight beams and structural shapes in steel fabrication and construction environments. It is designed for use with a constant tension applied to the lifting shackle throughout the lift, and its horizontal shackle orientation allows beams to be lifted with the web in a near-horizontal position by positioning the clamp with the shackle over the web and between the flanges. When a beam is lying horizontal and the clamp is placed with the shackle overhanging the flange, the load can be lifted, rotated 90 degrees, and raised into a vertical position. This clamp is suited for contractors, ironworkers, riggers, and steel erectors who regularly handle structural sections and require controlled, repeatable lifts.\u003c\/p\u003e\n\u003cp\u003eWhat distinguishes the Model ASTL from the base Model AST is the addition of a built-in linkage mechanism that allows the clamp to be removed remotely — without requiring personnel to manually release it at the load. By setting the load down with the sling slack and then lifting the crane hook, the clamp disengages, keeping workers out of the lift zone during release. This remote-removal capability is a meaningful operational safety advantage over clamps that require hands-on release at the point of load.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003eRemote Removal via Linkage Mechanism\u003c\/h4\u003e\n\u003cp\u003eThe ASTL's integrated linkage allows the clamp to be released remotely by setting the load down with sling slack, then lifting the crane hook. This eliminates the need for a worker to approach the suspended or freshly set load to release the clamp, reducing exposure to hazard at the point of lift. For contractors working in steel erection or beam staging, this feature directly supports safer rigging workflows.\u003c\/p\u003e\n\n\u003ch4\u003eHorizontal Shackle for Web and Flange Lifts\u003c\/h4\u003e\n\u003cp\u003eThe horizontal shackle orientation enables the clamp to be positioned over the web and between the flanges of a beam, allowing near-horizontal lifts of structural shapes with improved load control. This configuration is not incidental — it is the core design intent of both the AST and ASTL models, and it gives riggers the geometry needed to handle I-beams, channels, and similar profiles predictably.\u003c\/p\u003e\n\n\u003ch4\u003e90-Degree Turn Capability\u003c\/h4\u003e\n\u003cp\u003eWith the clamp placed so the shackle overhangs the flange of a horizontally lying beam, the load can be lifted, turned 90 degrees, and raised to a vertical position in a single rigging setup. This turn-and-lift capability is particularly valuable in beam staging, stacking operations, and structural erection where orientation changes are routine.\u003c\/p\u003e\n\n\u003ch4\u003eDesigned for Constant-Tension Operation\u003c\/h4\u003e\n\u003cp\u003eThe clamp is engineered to operate with constant tension on the lifting shackle during the lift. This is a defined operating condition — not a recommendation — and contractors should plan rigging accordingly to ensure the clamp functions within its intended parameters throughout the lift cycle.\u003c\/p\u003e\n\n\u003ch4\u003eNon-Locking Clamp Type\u003c\/h4\u003e\n\u003cp\u003eThe ASTL is a non-locking clamp, which is matched to specific structural shape lifting tasks where the load geometry and constant shackle tension provide the gripping action. Understanding the clamp type is essential for selecting the correct tool for the application and for complying with proper rigging practices.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eLifting Lightweight Beams and Structural Shapes\u003c\/h4\u003e\n\u003cp\u003eThe primary use case for the Model ASTL is lifting lightweight beams and structural shapes — I-beams, channels, angles, and similar profiles — in fabrication shops, staging yards, and active construction sites.\u003c\/p\u003e\n\n\u003ch4\u003eTurning Beams from Horizontal to Vertical\u003c\/h4\u003e\n\u003cp\u003eWith the shackle overhanging the flange of a beam lying flat, the ASTL allows the beam to be lifted, rotated 90 degrees, and raised to a vertical orientation, a common requirement in structural steel erection and pre-fabrication workflows.\u003c\/p\u003e\n\n\u003ch4\u003eStacking Structural Shapes\u003c\/h4\u003e\n\u003cp\u003eThe clamp is designed for stacking lightweight structural shapes, supporting organized material handling in steel yards and fabrication facilities where beams must be sorted, layered, or staged by size and orientation.\u003c\/p\u003e\n\n\u003ch4\u003eRemote-Release Lifting Operations\u003c\/h4\u003e\n\u003cp\u003eIn applications where minimizing personnel exposure near the load during clamp release is a priority — such as elevated placements or congested erection areas — the ASTL's remote-removal linkage allows the crane operator to release the clamp without a worker physically accessing the load.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLightweight steel I-beams (web and flange lifting)\u003c\/li\u003e\n  \u003cli\u003eSteel channels\u003c\/li\u003e\n  \u003cli\u003eSteel angles\u003c\/li\u003e\n  \u003cli\u003eOther structural steel shapes with flanged or webbed profiles\u003c\/li\u003e\n  \u003cli\u003ePlate stock up to 0.75 in. maximum thickness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20366.pdf?v=1785328663\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/34_AST-L_205.18.12.pdf?v=1785328663\" target=\"_blank\" rel=\"noopener\"\u003eDownload Manual\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_716d32a6-a5b9-42cd-8590-c06a8969b7e1.pdf?v=1785328663\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_d8bf64c0-146a-4927-9a60-faa175a67438.pdf?v=1785328663\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_b29b7a62-42a0-4c36-9f9c-b797888cf703.pdf?v=1785328663\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_c10b6779-6899-4625-b51e-bf980dc10b37.pdf?v=1785328668\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eHorizontal Web Lift Setup\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003eRead and understand the Operator's Manual (OM 211-AST\/L) before placing the clamp into service.\u003c\/li\u003e\n  \u003cli\u003eInspect the clamp before each lift per the inspection instructions in the Operator's Manual.\u003c\/li\u003e\n  \u003cli\u003ePosition the clamp on the beam with the shackle placed over the web and between the flanges.\u003c\/li\u003e\n  \u003cli\u003eConnect rigging to the lifting shackle using a flexible connection between the crane and the clamp shackle — do not attach the clamp directly to the crane hook.\u003c\/li\u003e\n  \u003cli\u003eApply constant tension to the lifting shackle before and throughout the lift.\u003c\/li\u003e\n  \u003cli\u003eDo not lift over workmen or safety areas during the lift.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003e90-Degree Turn Lift Setup\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003eWith the beam lying in a horizontal position, place the clamp with the shackle overhanging the flange.\u003c\/li\u003e\n  \u003cli\u003eConnect rigging using a flexible connection to the crane hook.\u003c\/li\u003e\n  \u003cli\u003eApply constant tension to the shackle and lift the beam.\u003c\/li\u003e\n  \u003cli\u003eRotate the beam 90 degrees and raise it to the vertical position as required.\u003c\/li\u003e\n  \u003cli\u003eEnsure the load does not exceed the rated capacity of the clamp at any point during the turning operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eRemote Clamp Removal\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003eSet the load down at the target location.\u003c\/li\u003e\n  \u003cli\u003eAllow the sling to go slack.\u003c\/li\u003e\n  \u003cli\u003eLift the crane hook — the linkage mechanism will disengage the clamp remotely without requiring manual release at the load.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eASTL-01.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\u003ctd\u003eNon-Locking\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e24 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e8.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClamp Length\u003c\/td\u003e\n\u003ctd\u003e7 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClamp to Cam Length\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.56 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOverall Clamp Length\u003c\/td\u003e\n\u003ctd\u003e13 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePivot Length\u003c\/td\u003e\n\u003ctd\u003e2.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eShackle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eRemote Removal\u003c\/td\u003e\n\u003ctd\u003eYes — via linkage mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRead and understand the Operator's Manual before placing the clamp in service; bring to your immediate supervisor before first use.\u003c\/li\u003e\n  \u003cli\u003eConstant tension must be applied to the lifting shackle at all times when lifting loads.\u003c\/li\u003e\n  \u003cli\u003eDo not attach the clamp directly to the crane hook; always use a flexible connection between the crane and the clamp shackle.\u003c\/li\u003e\n  \u003cli\u003eDo not use a heavy flexible connection.\u003c\/li\u003e\n  \u003cli\u003eDo not lift over workmen, safety areas, or personnel.\u003c\/li\u003e\n  \u003cli\u003eUse clamps within their rated capacity; do not overload.\u003c\/li\u003e\n  \u003cli\u003eDo not use a clamp that has been overloaded.\u003c\/li\u003e\n  \u003cli\u003eDo not side load with this clamp.\u003c\/li\u003e\n  \u003cli\u003eUse an adequate number of clamps to balance the load; do not lift unbalanced loads.\u003c\/li\u003e\n  \u003cli\u003eUse correct clamp for the job; do not use a large-capacity clamp to lift light loads.\u003c\/li\u003e\n  \u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n  \u003cli\u003eDo not rush; do not improvise.\u003c\/li\u003e\n  \u003cli\u003eInspect the clamp before each lift and follow inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n  \u003cli\u003eUse only Renfroe replacement parts to ensure proper clamp operation.\u003c\/li\u003e\n  \u003cli\u003eConsult the Operator's Manual or Renfroe when in doubt about application or operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the Model AST and the Model ASTL?\u003c\/strong\u003e\u003cbr\u003eA: Both models are designed for lifting, turning, and stacking lightweight beams and structural shapes with constant tension on the shackle. The Model ASTL adds a linkage mechanism that allows the clamp to be removed remotely — by setting the load down with the sling slack and then lifting the crane hook — without requiring a worker to manually release the clamp at the load.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How does the horizontal shackle design improve load control when lifting beams?\u003c\/strong\u003e\u003cbr\u003eA: The horizontal shackle allows the clamp to be positioned with the shackle over the web and between the flanges of the beam. This placement improves load control by centering the lift point relative to the beam's cross-section when lifting with the web in a near-horizontal position.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can this clamp be used to turn a beam from horizontal to vertical?\u003c\/strong\u003e\u003cbr\u003eA: Yes. By placing the clamp with the shackle overhanging the flange of a horizontally lying beam, the beam can be lifted, turned 90 degrees, and raised to a vertical position in a single rigging setup.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum plate thickness this clamp can accommodate?\u003c\/strong\u003e\u003cbr\u003eA: The ASTL-01.50-A accepts plate and flange thicknesses from 0 to 0.75 in. maximum.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is constant tension on the shackle required during the lift?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Model ASTL is designed to operate with constant tension applied to the lifting shackle. This is a defined operating condition for both the AST and ASTL models and must be maintained throughout the lift.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the clamp be attached directly to the crane hook?\u003c\/strong\u003e\u003cbr\u003eA: No. The Operator's Manual explicitly states that the clamp must not be attached directly to the crane hook. A flexible connection must be used between the crane and the clamp shackle, and that connection should not be heavy.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"Default Title","offer_id":48651941019822,"sku":"ASTL-01.50-A","price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_ASTL_Silo_1-1280x1280.webp?v=1785328672"},{"product_id":"caldwell-model-m-locking-type-structural-shape-lifting-clamp","title":"Caldwell Model M Locking Type Structural Shape Lifting Clamp","description":"\u003ch2\u003eRenfroe Model M Locking Type Structural Shape Lifting Clamp — Multipurpose Horizontal Lift Clamp for Structural Steel\u003c\/h2\u003e\n\u003cp\u003eThe Renfroe Model M is a multipurpose locking lifting clamp engineered for the positioning, sorting, erection, and handling of prefabricated structural sections. Designed for contractors and trades professionals working with structural steel, the Model M's split lower jaw makes it especially effective when gripping structural shapes such as I-beams and H-beams in both orientations. At 0.5-ton capacity, this model handles lighter structural members with precision and control. It is manufactured by The Caldwell Group, Inc. in Rockford, IL under the trusted RENFROE brand, which has been the preferred choice of international lifting clamp users for more than 50 years.\u003c\/p\u003e\n\u003cp\u003eWhat sets the Model M apart is its integrated \"Lock Closed\" feature, which secures the clamp to the member before the lift begins — a critical safety advantage over clamps without positive locking. The split lower jaw design further distinguishes it from flat-plate clamps by enabling a secure grip on the complex profiles of structural shapes, not just flat stock.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\n\u003ch4\u003eLock Closed Feature\u003c\/h4\u003e\n\u003cp\u003eThe Model M incorporates a \"Lock Closed\" mechanism that allows the operator to positively secure the clamp to the member before initiating the lift. This reduces the risk of accidental disengagement during attachment and throughout the lifting operation, giving crews greater confidence when working with structural components overhead.\u003c\/p\u003e\n\n\u003ch4\u003eSplit Lower Jaw for Structural Shape Handling\u003c\/h4\u003e\n\u003cp\u003eThe split lower jaw design is specifically intended for gripping structural shapes, making the Model M particularly useful when handling I-beams and H-beams. This jaw geometry accommodates the flanges and webs of structural profiles that a standard flat-jaw clamp cannot grip reliably.\u003c\/p\u003e\n\n\u003ch4\u003eVersatile Horizontal Lift Capability\u003c\/h4\u003e\n\u003cp\u003eThe Model M is rated for horizontal lifts of an I-beam in both the I and H positions, giving contractors flexibility when orienting members during erection or placement. This dual-orientation capability reduces the need for re-rigging when structural members must be repositioned.\u003c\/p\u003e\n\n\u003ch4\u003eMultipurpose Utility Across Job Phases\u003c\/h4\u003e\n\u003cp\u003eDesigned for positioning, sorting, erection, and handling of prefabricated sections, the Model M supports multiple phases of a structural steel project with a single clamp model. Contractors can use the same tool for receiving yard sorting, staging, and final erection, reducing the number of specialty tools required on site.\u003c\/p\u003e\n\n\u003ch4\u003eCompact, Lightweight Design\u003c\/h4\u003e\n\u003cp\u003eAt 7 lbs. with an overall clamp height of 8.88 in. and a clamp width of 2.62 in., the Model M is manageable for ironworkers and rigging crews working in tight structural bays. Its compact footprint minimizes interference with adjacent members during close-tolerance placement work.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\n\u003ch4\u003eStructural Steel Erection\u003c\/h4\u003e\n\u003cp\u003eThe Model M is used during the erection of prefabricated structural sections, providing a secure horizontal lift point on I-beams and H-beams as they are set into position by crane.\u003c\/p\u003e\n\n\u003ch4\u003eSorting and Staging in the Yard\u003c\/h4\u003e\n\u003cp\u003eFabricators and contractors use the Model M to sort and position structural shapes in the staging yard before delivery or erection, enabling efficient material handling without damaging the steel profile.\u003c\/p\u003e\n\n\u003ch4\u003eHandling of Prefabricated Sections\u003c\/h4\u003e\n\u003cp\u003eThe clamp is suited for moving prefabricated structural assemblies from fabrication to installation, accommodating the variable flange thicknesses found across different member sizes within its jaw opening range of 0–1 in.\u003c\/p\u003e\n\n\u003ch4\u003eHorizontal Transport of Structural Members\u003c\/h4\u003e\n\u003cp\u003eWhen used in pairs, sets of pairs, or in a tripod arrangement, the Model M enables safe horizontal transport of structural members, distributing the load across multiple attachment points for balanced lifts.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eStructural steel I-beams (lifted in I or H position)\u003c\/li\u003e\n  \u003cli\u003eStructural steel H-beams (lifted in I or H position)\u003c\/li\u003e\n  \u003cli\u003ePrefabricated structural sections and assemblies\u003c\/li\u003e\n  \u003cli\u003eStructural shapes with flange or web thickness from 0 to 1 in. (jaw opening range)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20368.pdf?v=1785334183\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Renfroe_20OM318-M_20040824_20WEB.pdf?v=1785334185\" target=\"_blank\" rel=\"noopener\"\u003eDownload Operator's Manual\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Clamp_20Survey_20Report_202026_f4c549c4-53cc-4623-be47-a406bb0c9fbb.pdf?v=1785334183\" target=\"_blank\" rel=\"noopener\"\u003eLifting Clamp Survey Report\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Lifting_20Tool_20Inventory_20and_20Maint_20Form_202026_e409f552-1f46-464a-b30f-11876fc534a5.pdf?v=1785334183\" target=\"_blank\" rel=\"noopener\"\u003eLifting Tool Inventory and Maintenance Form\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Minimum_20Recommended_20Clamp_20Inspections_202026_ebf6b048-6d58-4107-823b-9c6d6f157d03.pdf?v=1785334183\" target=\"_blank\" rel=\"noopener\"\u003eMinimum Recommended Clamp Inspections\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Renfroe_20Repair_20Kits_4f3f66f0-d00f-4386-9b9c-36664ba2b16b.pdf?v=1785334191\" target=\"_blank\" rel=\"noopener\"\u003eRenfroe Repair Kits Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\n\n\u003ch4\u003eBefore the Lift\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003eRead and understand the Operator's Manual before using the clamp.\u003c\/li\u003e\n  \u003cli\u003eInspect the clamp before each lift following the inspection and maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n  \u003cli\u003eConfirm the load does not exceed the clamp's rated capacity of 0.5 tons.\u003c\/li\u003e\n  \u003cli\u003eSelect the correct clamp model for the jaw opening required (0–1 in. for Model M-00.50-A).\u003c\/li\u003e\n  \u003cli\u003eSecure the load before attaching the clamp.\u003c\/li\u003e\n  \u003cli\u003eAttach the clamp to the structural member and engage the Lock Closed feature to positively secure the clamp prior to lifting.\u003c\/li\u003e\n  \u003cli\u003eUse a flexible connection between the crane hook and the clamp shackle; do not attach the clamp directly to the crane hook.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eRigging and Lift Execution\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003eUse clamps in pairs, sets of pairs, or in a tripod arrangement — never use a single clamp alone for horizontal lifts.\u003c\/li\u003e\n  \u003cli\u003eEnsure the load is balanced across all clamps before initiating the lift.\u003c\/li\u003e\n  \u003cli\u003eDo not lift over workers, safety areas, or personnel.\u003c\/li\u003e\n  \u003cli\u003eDo not side-load a straight shackle clamp.\u003c\/li\u003e\n  \u003cli\u003eDo not lift more than one structural member at a time.\u003c\/li\u003e\n  \u003cli\u003eDo not rush the lift operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eAfter the Lift\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003eInspect the clamp after use and follow maintenance instructions in the Operator's Manual.\u003c\/li\u003e\n  \u003cli\u003eUse only genuine RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n  \u003cli\u003eDo not alter, grind, weld, or modify the clamp in any manner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eM-00.50-A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLocking Type Structural Shape Lifting Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e0.5 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eShackle Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e2.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMin Jaw Opening\u003c\/td\u003e\n\u003ctd\u003e0 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Jaw Opening\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClamp Height\u003c\/td\u003e\n\u003ctd\u003e4.69 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClamp Width\u003c\/td\u003e\n\u003ctd\u003e2.62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eJaw Height\u003c\/td\u003e\n\u003ctd\u003e1.44 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eJaw Length\u003c\/td\u003e\n\u003ctd\u003e2.31 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOverall Clamp Height\u003c\/td\u003e\n\u003ctd\u003e8.88 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLock Closed Feature\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eUsage Requirement\u003c\/td\u003e\n\u003ctd\u003eMust be used in pairs, sets of pairs, or tripod arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHandle\u003c\/td\u003e\n\u003ctd\u003eAvailable on 8-ton clamp only\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThe Caldwell Group, Inc. (RENFROE brand)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eManufactured In\u003c\/td\u003e\n\u003ctd\u003eRockford, IL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSafety Data Summary\u003c\/h3\u003e\n\u003ch4\u003eSafe Handling\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways lock the clamp closed before lifting; never lift with the lock in the open position.\u003c\/li\u003e\n  \u003cli\u003eNever lift over workers, safety areas, or personnel.\u003c\/li\u003e\n  \u003cli\u003eDo not attach the clamp directly to the crane hook; always use a flexible connection between the crane hook and clamp shackle.\u003c\/li\u003e\n  \u003cli\u003eUse the correct clamp for the job; do not use large-capacity clamps to lift light loads.\u003c\/li\u003e\n  \u003cli\u003eAlways use clamps within their rated capacity; do not overload.\u003c\/li\u003e\n  \u003cli\u003eUse enough clamps to balance the load; do not lift loads that are not balanced.\u003c\/li\u003e\n  \u003cli\u003eDo not misuse the clamp (e.g., do not lift a structural member from the bottom of a stack).\u003c\/li\u003e\n  \u003cli\u003eDo not alter the clamp; do not grind, weld, or modify it in any manner.\u003c\/li\u003e\n  \u003cli\u003eDo not use a connection that may release the clamp during the lift.\u003c\/li\u003e\n  \u003cli\u003eUse only RENFROE replacement parts to ensure proper operation.\u003c\/li\u003e\n  \u003cli\u003eConsult the Operator's Manual or RENFROE when in doubt about any application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model M-00.50-A be used as a single clamp for horizontal lifts?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model M must be used in pairs, sets of pairs, or in a tripod arrangement when transporting structural members horizontally. Single-clamp use is not permitted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What structural orientations can the Model M handle for I-beam lifts?\u003c\/strong\u003e\u003cbr\u003eA: The Model M is designed for horizontal lifts of an I-beam in both the I position and the H position, providing versatility during erection and placement operations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is a handle available on the 0.5-ton Model M?\u003c\/strong\u003e\u003cbr\u003eA: No. A handle is available on the 8-ton Model M clamp only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of the Lock Closed feature?\u003c\/strong\u003e\u003cbr\u003eA: The Lock Closed feature allows the operator to positively secure the clamp to the structural member before initiating the lift. This facilitates safe attachment and helps prevent accidental disengagement during the lifting operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What jaw opening range does the M-00.50-A accommodate?\u003c\/strong\u003e\u003cbr\u003eA: The M-00.50-A accommodates a jaw opening range of 0 to 1 in. For structural members with a plate or flange thickness of 3\/4 in. to 1-1\/2 in., the M-00.50-B model should be selected instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can RENFROE Model M clamps be modified or repaired with third-party parts?\u003c\/strong\u003e\u003cbr\u003eA: No. The clamp must not be altered, ground, welded, or modified in any manner. Only genuine RENFROE replacement parts should be used to ensure proper operation and maintain safety.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"0.5","offer_id":48652830441646,"sku":"M-00.50-A","price":698.0,"currency_code":"USD","in_stock":true},{"title":"1.0","offer_id":48652830474414,"sku":"M-01.00-A","price":765.0,"currency_code":"USD","in_stock":true},{"title":"4.0","offer_id":48652830507182,"sku":"M-04.00-A","price":1472.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_M_Silo_1-1280x1280-1280x1280.webp?v=1785334194"},{"product_id":"caldwell-wall-pick-lifting-clamp","title":"Caldwell Wall Pick Lifting Clamp","description":"\u003ch2\u003eWall Pick Lifting Clamp — Safe, Efficient Prefab Wall Panel Lifting\u003c\/h2\u003e\n\u003cp\u003eThe Model WP Wall Pick is a heavy-duty wall panel lifting clamp engineered for contractors handling prefabricated wall panels in housing and building construction. Rated at 1.25 tons, it is designed specifically to lift wall panels from a horizontal to a vertical position, making it a purpose-built tool for framing and panel-setting operations. The clamp's rugged construction and included 50-foot release rope streamline the pick-and-place process on the jobsite.\u003c\/p\u003e\n\u003cp\u003eUnlike generic lifting clamps, the Model WP features a locking mechanism that prevents premature release while the load is still suspended — a critical safety advantage over non-locking alternatives. The included 50-foot release rope further differentiates this unit by eliminating the need for a second person to manually unhook the clamp at height, allowing the crane or equipment operator to release the clamp safely from the cab.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4\u003eLoad-Locking Safety Mechanism\u003c\/h4\u003e\n\u003cp\u003eThe clamp locks automatically while loaded, preventing accidental or premature release during the lift. This reduces the risk of dropped loads and keeps the crew safer throughout the panel-setting operation.\u003c\/p\u003e\n\u003ch4\u003e50-Foot Release Rope Included\u003c\/h4\u003e\n\u003cp\u003eThe included 50-foot release rope allows the equipment operator to release the clamp from the cab once the wall panel is set and secured — no additional person is required to climb or reach the top of the panel to unhook. This saves labor and eliminates exposure to work-at-height hazards.\u003c\/p\u003e\n\u003ch4\u003eOpen Lower Lifting Plate\u003c\/h4\u003e\n\u003cp\u003eThe lower lifting plate features an open design that clears nails or bolts protruding from the panel face. This allows the clamp to seat properly on real-world framing lumber without requiring panels to be cleared of fasteners before lifting.\u003c\/p\u003e\n\u003ch4\u003ePurpose-Built for Horizontal-to-Vertical Panel Lifts\u003c\/h4\u003e\n\u003cp\u003eThe Model WP is specifically designed to upend wall panels from flat to standing — the exact operation required when setting prefab wall sections on a residential or commercial framing site. This focused design ensures the clamp performs reliably in its intended application.\u003c\/p\u003e\n\u003ch4\u003eASME-Compliant Construction\u003c\/h4\u003e\n\u003cp\u003eThe Model WP complies with ASME standards, providing contractors with confidence that the clamp meets recognized industry requirements for lifting equipment safety and performance.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003ch4\u003ePrefabricated Wall Panel Setting\u003c\/h4\u003e\n\u003cp\u003eDesigned to pick and place prefabricated wall panels used in housing and building construction, making it the go-to clamp for framing crews working with shop-built or factory-built wall sections.\u003c\/p\u003e\n\u003ch4\u003eHorizontal-to-Vertical Panel Upending\u003c\/h4\u003e\n\u003cp\u003eUsed to rotate wall panels from a flat, horizontal position to a vertical standing position — the critical transition step when erecting prefab walls with a crane or lifting equipment.\u003c\/p\u003e\n\u003ch4\u003eSingle-Operator Panel Release\u003c\/h4\u003e\n\u003cp\u003eThe 50-foot release rope enables the crane operator to release the clamp remotely from the cab after the panel is set, supporting single-operator workflows and reducing crew requirements for each lift cycle.\u003c\/p\u003e\n\u003ch3\u003eCompatible Materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrefabricated wood-framed wall panels (housing and building construction)\u003c\/li\u003e\n\u003cli\u003eWall panels with nails or bolts present on the lifting surface (cleared by open lower plate design)\u003c\/li\u003e\n\u003cli\u003eWall panels with load widths between 4 in. and 6 in. (for WP-1.25-4\/6 model)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Documents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Caldwell_20Master_20Catalog_20Page_20213.pdf?v=1785414055\" target=\"_blank\" rel=\"noopener\"\u003eDownload Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eWP-1.25-4\/6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Capacity\u003c\/td\u003e\n\u003ctd\u003e1.25 tons (2,500 lbs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin. Load Width\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Load Width\u003c\/td\u003e\n\u003ctd\u003e6 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Width\u003c\/td\u003e\n\u003ctd\u003e32 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBail Open Width\u003c\/td\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBail Open Height\u003c\/td\u003e\n\u003ctd\u003e5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBail Thickness\u003c\/td\u003e\n\u003ctd\u003e0.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosed Position Height (HR)\u003c\/td\u003e\n\u003ctd\u003e33.75 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosed Position Height (HT)\u003c\/td\u003e\n\u003ctd\u003e37.8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosed Position Length\u003c\/td\u003e\n\u003ctd\u003e18.1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelease Rope Length\u003c\/td\u003e\n\u003ctd\u003e50 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e53 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards Compliance\u003c\/td\u003e\n\u003ctd\u003eASME\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Model WP be used to lift panels from vertical to horizontal (downending)?\u003c\/strong\u003e\u003cbr\u003eA: No. The Model WP is designed to lift panels from a horizontal to a vertical position only. It is not rated or intended for downending operations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the clamp require a second worker at height to release it after the panel is set?\u003c\/strong\u003e\u003cbr\u003eA: No. The included 50-foot release rope allows the equipment operator to release the clamp from the safety of the cab once the panel is set and secured, eliminating the need for an additional person at height.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will the clamp accidentally release while the panel is suspended?\u003c\/strong\u003e\u003cbr\u003eA: No. The locking mechanism prevents the clamp from releasing while it is loaded, providing an additional layer of safety during the lift.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the clamp handle panels with nails or bolts on the surface?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The lower lifting plate has an open design specifically to clear nails or bolts, allowing it to seat properly on real-world framing panels without requiring fastener removal.\u003c\/p\u003e","brand":"Caldwell","offers":[{"title":"1.25-4\/6","offer_id":48656074309806,"sku":"67-30","price":2768.0,"currency_code":"USD","in_stock":true},{"title":"1.25-8\/12","offer_id":48656074342574,"sku":"67-31","price":3192.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/files\/Model_WP_Silo_1-1280x1280-1280x1280.webp?v=1785414059"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0551\/8396\/6382\/collections\/Model_LPA_Silo_1-1280x1280.webp?v=1789484039","url":"https:\/\/www.diamondtoolstore.com\/collections\/lifting-clamps.oembed","provider":"Diamond Tool Store","version":"1.0","type":"link"}