• Commercial
• Industrial
• Manufacturing
• Land transport

• Aluminum (Al)
• Copper (Cu)
• Nickel (Ni)
• Zinc (Zn)

• Soft steel

Powerchock™ - Strongest. Guaranteed!

Restraining devices and loading dock-signal systems.

The number of accidents in logistics has risen considerably in recent years to the point where it has become a major concern for logisticians.

Often accidental, untimely departure is an event that occurs daily at logistics warehouse docks.

Powerchock™ wheel locks secure all types of docked trucks during loading and unloading operations.

Click on the pictures for more product information and download the technical data sheets.

The wheel locking systems from GMR  Safety 

The Powerchock™ 3 - Portable locking system

The Powerchock™ 3 is a simple, manual wheel restraint system for securing vehicles at loading docks.

The Powerchock™ 3 is a simple, effective and easy-to-install vehicle-restraint system. It includes a flexible rod working in conjunction with a 16 in. high-tensile steel chock and a ground fixed retaining plate. Our system secures vehicles at the wheel up to a distance of 15 ft. from the dock.

Equipped with an optical wheel sensor to confirm proper placement, the system is manually armed by the dock worker (optional door interface). Powerchock™ 3 is linked to both audio and visual communication systems.

• Functions in minimal or narrow space
• Easy to install
• Intuitive use / no training required

The Powerchock™ 3 on trolley option

THE Powerchock™ 5 - Ergonomic locking system

The Powerchock™ 5 is a wheel restraint system for securing vehicles, equipped with an ergonomic arm to position the chock.

The Powerchock™ 5 is the flagship system designed and manufactured by GMR Safety in North America. The articulated arm makes precise placement of the 19” high-tensile steel chock on the anchored retaining plate almost effortless and functions consistently up to 14 feet.

It is equipped with 3 sensors (arm, wheel, & dock) that are linked to an audio-visual communication system.

• Near-effortless operation with use of articulated arm
• Chock aligned correctly by default when placed in front of the wheel, confirmed by integrated optical sensor
• Assisted return to resting position confirmed by sensor
• Sensors and exterior-alarm self-diagnostic system

The control box for Powerchock™ 3 - Powerchock™ 5

• Simple and powerful communication system
• Interfaced with the door and the leveler controls
• Custom programmable control with self-checking electrical components

Powerchock™ Hybrid - Restraint system for all vehicles

The Powerchock Hybrid secures all types of vehicles on the same platform:

• Semi-trailers
• Straight trucks
• Container trucks
• LCVS

What sets it apart:

• High strength steel double height wheel chock attached to an ergonomic articulating arm or cart.
• Galvanized steel floor restraint plate made of 3 sections totaling 12 feet, attached to the landing area. Possibility of additional sections.
• The blocking plate has an 11-inch section for LCVs and another 16-inch section for heavy vehicles. A sensor system determines the type of vehicle and the portion of chock to be positioned.

The benefits of the GMR Safety exclusive 5-year waranty

• The 5-year guarantee covers the chock and retaining plate during normal usage and also in case of early departure attempts.
• Keep your personnel, merchandise and equipment safe.
• Reliability reduces interruptions to your operation - maintaining efficiency.
• Increases profitability and protects your investments – allows extended amortization.
• Minimal down time – virtually maintenance free – no lubrication over lifetime, ever.