Caldwell Model PB Telescopic Pivoting Fork Lift Boom

Caldwell Model PB Telescopic Pivoting Fork Lift Boom — Maximum Reach with Vertical Pivot Control

The Caldwell Model PB Telescopic Pivoting Fork Lift Boom is engineered for contractors and trades professionals who need extended horizontal reach and vertical pivot capability from a standard lift truck. The telescoping boom extends up to 12 feet in 1-foot increments, while the vertically pivoting design reaches a maximum height of 6'4". Available in 3,000-, 4,000-, 6,000-, and 8,000-lb. capacity configurations, the Model PB is a heavy-duty attachment built for demanding jobsite lifting operations.

Unlike fixed-boom attachments, the Model PB adjusts vertically in five increments up to 40 degrees, giving operators precise angle control that static alternatives simply cannot provide. The combination of telescoping reach and vertical pivot in a single attachment eliminates the need for multiple specialized booms, reducing equipment overhead and improving jobsite efficiency.

Key Features & Benefits

Telescoping Boom with 12-Foot Maximum Reach

The boom extends from a compact starting length to a full 12 feet in 1-foot increments, allowing operators to position loads well beyond the front of the lift truck. This reach capability is critical when working around obstacles, positioning materials at height, or accessing tight placement zones that a standard fork cannot reach.

Vertically Pivoting Boom to 6'4" Height

The vertical pivot feature allows the boom to angle upward in five increments up to a maximum of 40 degrees, achieving a hook height of 6'4". This adjustability enables precise vertical positioning of loads without repositioning the lift truck, saving time and improving placement accuracy on congested job sites.

Fixed or Swivel Hook Options

Operators can select either fixed or swivel hooks depending on the rigging requirements of the load. Swivel hooks allow the load to rotate freely and reduce torsional stress on the rigging, while fixed hooks provide a stable, locked lift point for controlled placements.

Alternate Hook Positions

Multiple hook positions along the boom allow operators to adjust the load's center of gravity and optimize capacity for a given reach. Selecting a hook position closer to the mast maximizes the rated capacity, while outer positions extend reach at adjusted load ratings as shown in the capacity table.

Boom Locking T-Pin and Restraining Chain with Grab Hook

The boom locking T-pin secures the telescoping boom at the selected extension length, preventing unintended movement during lifts. The restraining chain with grab hook provides an additional safety retention point, keeping the load secured and reducing the risk of accidental release.

Handle at End for Easy Extension

A dedicated handle at the end of the boom allows operators to extend or retract the telescoping section smoothly and safely without tools. This feature reduces adjustment time between lifts and keeps hands clear of pinch points during boom manipulation.

Common Applications

Steel Beam and Structural Member Placement

The Model PB's extended reach and high capacity ratings make it well-suited for lifting and positioning steel beams, columns, and structural members on commercial and industrial construction sites.

Precast Concrete Panel Handling

Contractors can use the telescoping boom to position precast concrete panels, lintels, and architectural elements where direct fork access is not possible or practical.

Equipment and Machinery Rigging

The swivel and fixed hook options make the Model PB an effective attachment for rigging and positioning heavy equipment, generators, HVAC units, and mechanical components at height or in confined areas.

Material Staging Over Obstacles

When materials must be staged or placed over barriers, scaffolding, or existing structures, the 12-foot telescoping reach allows the fork truck to remain at a safe distance while the boom delivers the load to the target location.

Loading Dock and Warehouse Lifting Operations

The Model PB is suited for warehouse environments where elevated or extended placements are needed, such as placing materials on high shelving, mezzanines, or loading into truck bodies from the side.

Pipe, Bundle, and Long Material Handling

With customizable fork pocket sizing to match the operator's lift truck setup, the Model PB accommodates varied rigging configurations for lifting pipe bundles, lumber, and other long or awkwardly shaped loads.

Compatible Materials

• Structural steel beams, columns, and angles
• Precast concrete panels, lintels, and blocks
• Pipe, conduit, and bundled cylindrical materials
• Lumber, timber, and engineered wood products
• Mechanical equipment, generators, and HVAC units
• Machinery components and heavy industrial equipment
• Palletized construction materials requiring extended placement reach

Product Documents

• Download Catalog

Technical Specifications

Safety Data Summary

Hazard Information

• Capacity of the lift truck and attachment combination may be less than the capacity shown on the attachment.
• Overloading the combined lift truck and boom attachment beyond the lift truck manufacturer's rated capacity may result in tip-over, structural failure, or load drop.
• Improper boom extension without engaging the locking T-pin may allow unintended retraction under load.

Personal Protective Equipment

• Hard hat required in all areas where overhead lifting is in progress.
• Steel-toed footwear required when working in load swing or drop zones.
• High-visibility vest recommended when working near operating lift trucks.

Safe Handling

• Consult the lift truck manufacturer to determine the maximum rated capacity for the lift truck and attachment combination before use.
• Always verify the boom locking T-pin is fully engaged before lifting any load.
• Ensure the restraining chain with grab hook is secured to the load prior to lifting.
• Select the appropriate hook position based on load weight and required reach; do not exceed the rated capacity shown for the selected hook position.
• Top rigging and shackles are not included and must be sourced and rated appropriately for the intended load.
• Keep all personnel clear of the load swing radius during lifting operations.

Frequently Asked Questions

Q: What capacity options are available for the Caldwell Model PB Fork Lift Boom?
A: The Model PB is available in 3,000-, 4,000-, 6,000-, and 8,000-lb. configurations. A 12,000-lb. (6-ton) PB-120 model is also available — call 800-628-4263 for details.

Q: Does the rated capacity change at different boom extension lengths?
A: Yes. The rated capacity at each hook position decreases as the boom is extended further from the mast. For example, the PB-30 is rated at 3,000 lb at the 3'–7' hook position but drops to 1,500 lb at the full 12-foot extension. Always consult the capacity table for the specific model and hook position before lifting.

Q: Can I use swivel hooks instead of fixed hooks on the Model PB?
A: Yes. Both fixed and swivel hooks are available for the Model PB. Swivel hooks allow the suspended load to rotate freely, which reduces rigging torsion and can simplify load orientation during placement.

Q: Are top rigging and shackles included with the Model PB?
A: No. Top rigging and shackles are not included with the Model PB and must be sourced separately. Ensure all rigging components are rated for the intended load before use.

Q: Can the fork pocket size be customized to fit my lift truck?
A: Yes. Fork pockets can be customized to match your specific lift truck setup. Contact Diamond Tool Store or Caldwell directly to discuss customization options for your equipment configuration.

Q: Do I need to verify my lift truck's capacity before using the Model PB?
A: Yes. The capacity of the lift truck and attachment combination may be less than the capacity shown on the attachment itself. You must consult your lift truck manufacturer to confirm the maximum allowable capacity for your specific truck and boom combination before performing any lifts.