9" Hand Cup for Flat Surfaces (150 lbs / 68 kg)

Wood's Powr-Grip N5450 — 9" Metal Handle Vacuum Hand Cup for Heavy Flat Surface Lifting

The Wood's Powr-Grip N5450 is a professional-grade vacuum hand cup engineered for the safe manual lifting, positioning, and handling of heavy flat materials on industrial job sites. Built around a 9" (23 cm) standard rubber suction pad and a rugged metal handle, it delivers a rated load capacity of 150 lbs (68 kg) — making it one of the highest-capacity single-operator hand cups in the Wood's Powr-Grip product line. It is designed for glaziers, stone fabricators, tile installers, and industrial material handlers who require dependable vacuum holding power under demanding conditions. The N5450 (SKU: 91700) is eligible for the WPG Hand Cup Exchange Program, providing long-term serviceability and investment protection.

Compared to plastic-handle alternatives such as the N4000, the N5450 features a metal handle for superior grip durability and a larger 9" pad diameter that increases contact area and holding stability on heavy panels. The 25 lb higher load rating and exchange program eligibility make it the preferred choice for contractors handling large-format glass, stone slabs, or architectural panels where reliability and longevity are non-negotiable.

Key Features & Benefits

150 lb (68 kg) Rated Load Capacity

The N5450 is rated for loads up to 150 lbs (68 kg), enabling single-operator handling of heavier panels that would otherwise require a two-person lift. This directly reduces labor overhead and improves throughput on glass and stone installation projects. The higher capacity also provides a meaningful safety margin when working with materials near the lower end of the rating.

Rugged Metal Handle

The metal handle provides greater structural rigidity and long-term durability compared to industrial-grade plastic alternatives, resisting deformation under sustained heavy loads. For contractors using hand cups daily across multiple job sites, the metal construction significantly extends service life and maintains grip integrity over time. It also offers a more secure, confident feel when maneuvering large or awkward panels.

9" Standard Rubber Suction Pad (Model G0725)

The larger 9" pad diameter creates a greater contact area with the work surface, improving seal stability and vacuum retention on heavy or large-format materials. The standard rubber compound is optimized for smooth, nonporous surfaces including glass, polished stone, and coated metal panels. Replacement pads (G0725) are available separately, extending the usable life of the hand cup body.

Red-Line Vacuum Loss Indicator

A built-in red-line indicator provides a continuous visual warning if vacuum pressure drops significantly during a lift, giving the operator an immediate alert before load failure occurs. This safety feature is critical when working at height, near edges, or in environments where a dropped panel could cause injury or costly damage. It removes the guesswork from vacuum integrity checks and supports OSHA-compliant safe lifting practices.

Fast Attach and Release Mechanism

The quick-engage vacuum mechanism allows operators to attach and release the cup rapidly without tools, supporting high-throughput workflows in fabrication shops and on active job sites. Faster cycle times per lift translate directly to improved productivity when handling multiple panels in sequence. The release action is controlled and deliberate, preventing accidental disengagement during a lift.

WPG Hand Cup Exchange Program Eligibility

The N5450 is eligible for Wood's Powr-Grip’s Hand Cup Exchange Program, which allows worn or end-of-life cups to be returned and exchanged, reducing total cost of ownership over the tool’s service life. This program is particularly valuable for contractors and shops that rely on hand cups as primary lifting tools and need a reliable replacement pathway. Contact your WPG distributor for current exchange program terms and eligibility details.

Common Applications

Plate Glass and Tempered Glass Installation

The N5450 is purpose-built for glazing applications, providing the load capacity and pad size needed to safely handle large plate glass and tempered glass panels during installation. Its metal handle and vacuum indicator make it a standard tool for professional glaziers working on storefronts, curtain walls, and architectural glass projects.

Granite and Natural Stone Countertop Installation

Stone fabricators and countertop installers use the N5450 to lift and position granite, marble, and quartzite slabs during templating, cutting, and final installation. The 150 lb capacity accommodates most standard countertop sections without requiring a second operator.

Large-Format Ceramic and Porcelain Tile Handling

For large-format tile (24"x48" and above), the N5450 provides the suction area and load rating needed to safely move heavy porcelain slabs from pallet to installation surface without chipping edges or risking breakage from flex. It is particularly effective on polished and glazed tile surfaces.

Architectural Mirror and Glass Panel Positioning

When installing oversized mirrors or decorative glass panels, precise positioning is critical and hand pressure alone risks surface contamination or breakage. The N5450 allows controlled, hands-free-grip placement with the vacuum doing the holding work while the operator guides alignment.

Smooth Metal Sheet and Panel Handling

In metal fabrication and HVAC sheet metal environments, the N5450 handles smooth, nonporous metal panels that are too heavy or awkward to grip safely by hand. It is effective on painted, coated, or polished metal surfaces where edge handling would risk deformation or injury.

Prefabricated Panel and Composite Board Placement

Contractors working with smooth-faced composite panels, ACM (aluminum composite material), or prefabricated architectural cladding use the N5450 to position panels accurately during installation without surface contact that could mar finished faces.

Compatible Materials

• Plate glass and float glass
• Tempered and laminated safety glass
• Polished granite, marble, and quartzite
• Engineered stone and quartz composite
• Glazed and polished ceramic tile
• Polished porcelain tile (large format)
• Smooth painted or coated metal sheet
• Polished stainless steel and aluminum panel
• ACM (aluminum composite material) — smooth face
• Smooth-faced composite and prefabricated architectural panels

Not compatible with: rough, textured, porous, or curved surfaces. Do not use on concrete, brick, unpolished stone, wood, drywall, or any surface with surface relief or curvature.

Product Documents

• N5450 Full Specifications Sheet (PDF)

Application Instructions

Step 1: Surface Preparation

1. Clean the target surface area where the pad will contact — remove dust, oil, water, and debris.
2. Inspect the suction pad (G0725) for cuts, cracks, hardening, or contamination. Replace if damaged.
3. Confirm the surface is smooth, flat, and nonporous. Do not proceed on incompatible surfaces.

Step 2: Attaching the Cup

1. Position the pad flat against the surface with even contact across the full pad diameter.
2. Engage the vacuum mechanism using the handle lever or pump action until resistance is felt.
3. Check the red-line vacuum indicator — confirm it shows a full, stable vacuum before lifting.
4. Apply a test load (gentle downward pull) to verify the seal before committing to the full lift.

Step 3: Lifting and Positioning

1. Lift smoothly and avoid sudden jerking motions that can break the vacuum seal.
2. Monitor the red-line indicator continuously throughout the lift and during positioning.
3. Do not exceed the 150 lb (68 kg) rated load capacity under any circumstances.
4. Keep the load path as vertical as possible — avoid extreme lateral angles that reduce effective holding force.

Step 4: Release and Storage

1. Lower the load fully to a stable surface before releasing the vacuum.
2. Engage the release mechanism slowly and in a controlled manner.
3. Clean the pad after use and store in the supplied protective carrying case.

Technical Specifications

Safety Data Summary

Hazard Information

• Vacuum loss during a lift can result in sudden load drop, causing serious injury or property damage
• Overloading beyond 150 lbs (68 kg) rated capacity may cause sudden cup release without warning
• Use on incompatible surfaces (curved, porous, textured) significantly reduces holding force and increases drop risk
• Damaged or contaminated suction pads reduce vacuum integrity and must be replaced before use
• Operating outside the rated temperature range (10°F–120°F) may degrade rubber pad performance

Personal Protective Equipment

• Safety glasses or face shield when handling glass panels
• Cut-resistant gloves rated for glass handling
• Steel-toed safety footwear
• Hard hat when working in overhead or multi-level environments

Safe Handling

• Always inspect the pad and vacuum indicator before each lift
• Never exceed the rated 150 lb load capacity
• Monitor the red-line indicator continuously — lower the load immediately if vacuum loss is detected
• Do not use on surfaces that are wet, oily, frosted, or contaminated
• Store in the supplied carrying case to protect the pad from damage and contamination
• Do not use above 5,000 ft elevation (if maximum elevation spec applies — confirm with WPG documentation)

Frequently Asked Questions

Q: What is the difference between the N5450 and the N4000?
A: The N5450 has a larger 9" pad (vs. 8" on the N4000), a higher 150 lb load capacity (vs. 125 lb), a metal handle instead of industrial-grade plastic, and is eligible for the WPG Hand Cup Exchange Program. It is the preferred choice for heavier panels and higher-frequency professional use.

Q: Can the N5450 be used on slightly curved glass or stone?
A: No. The N5450 is rated for flat surfaces only. Using it on curved surfaces will prevent a full pad seal from forming, significantly reducing holding capacity and creating a serious drop hazard. For curved surfaces, consult Wood's Powr-Grip for appropriate curved-surface cup models.

Q: How do I know if the vacuum seal is secure before lifting?
A: Check the red-line vacuum indicator — it should show a stable, full vacuum with no red-line visible. Additionally, apply a controlled test load (firm downward pull) before committing to the full lift. If the indicator shows any vacuum loss, re-seat the cup and re-check before proceeding.

Q: What replacement pad does the N5450 use?
A: The N5450 uses the G0725 standard rubber pad (9" diameter). Replacement pads are available separately through Wood's Powr-Grip authorized distributors.

Q: Is this product eligible for the WPG Hand Cup Exchange Program?
A: Yes. The N5450 (SKU 91700) is eligible for the Wood's Powr-Grip Hand Cup Exchange Program. Contact your WPG distributor for current program terms, exchange conditions, and pricing.

Q: Is this product made to order?
A: Yes. This product is made to order and all sales are final. Please confirm your requirements before placing your order.

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