Vehicle Restraints
Vehicle Restraints hold truck trailers in place during the loading and unloading process – known as ‘trailer creep.’ Using a hook on the ICC bar of the trailer, these vehicle restraints prevent dangerous situations at dockside.
Available in both manual and automatic designs, these restraints make working on your trainload dock safer and faster. We also have communication light systems to let drivers and dock crew know when it’s safe after the load has been released.

Types of Vehicle Restraints

Automatic Loading Dock Truck Restraint TRR Series Truck Restraint by DLM Dock Equipment
- The TPR® is designed to withstand a pulling force in excess of 32,000 lbs, and has a service range of 4” to 10” horizontally from the face of the dock bumpers and 9” to 30” vertically above drive approach.
- The integral motor, gear and brake assembly is specifically designed for the TPR®. The TPR® vehicle restraint is highly adaptable to new or existing loading docks.
- *OPTIONAL* The TPR UniLock™ is the only trailer-positioned vehicle restraint that can automatically remove “RIG Wedge” pressure.
- RIG Wedge is caused when the trailer is pushed forward during loading/unloading and the trailer’s Rear Impact Guard (RIG) applies so much pressure to the restraint’s hook that the truck driver must reverse the trailer in order to release the restraint.
- The UniLock has an advanced cam design that first rotates the hook away from the RIG to remove the pressure, and then rotates down to a stored position.
Push Button Automatic by DLM POWERSTOP® SERIES AUTOMATIC RESTRAINT Automatic Loading Dock Truck Restraint
- The PowerStop® fully automatic vehicle restraint (AAL) is an easy-to-install, affordable restraining system.
- Withstands up to 32,000 lbs. of pull out force and has a horizontal service range of 0” to 10” and a 12” minimum to 29.5” vertical service range.
- Powerstop® can be integrated with any mechanical, hydraulic or pneumatic dock leveler.
- Extremely versatile for a wide variety of applications.


POWERSTOP® SERIES MANUAL RESTRAINT
Manual Loading Dock Truck Restraint
- By providing an economical solution for your shipping and receiving operation, the PowerStop® Manual Series vehicle restraint brings value and enhanced safety to your loading dock.
- The PowerStop® is a non-impact, self-aligning, mechanically operated truck restraining system.
- *OPTIONAL* The TPR UniLock™ is the only trailer-positioned vehicle restraint that can automatically remove “RIG Wedge” pressure.
- Withstands up to 32,000 lbs. of pull out force and has a horizontal service range of 0” to 10” from the face of the dock bumpers and a horizontal range of 12” to 29.5”.
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