Overview
The Poweramp® TPR® is a truck-positioned vehicle restraint, available as a standalone unit or integrated with other loading dock equipment. The unit incorporates a self-contained motor assembly and helps prevent unexpected trailer departure from the loading dock during the loading and unloading process.
The TPR is built on a proven design. As the truck backs into position, the Rear Impact Guard contacts the TPR spring-loaded, structural steel housing, which rides down its track, allowing the RIG to position itself on top of the housing. The operator then presses "Engage," activating the hook to rotate up and secure the trailer to the loading dock. The TPR restraint maintains contact with the RIG and adjusts automatically with the trailer float motion to ensure proper engagement at all times during the loading and unloading operation. After loading is complete, the operator presses "Release," lowering the hook to a safely stored position, releasing the trailer. The TPR® vehicle restraint is highly adaptable to new or existing loading docks. It works with Poweramp's iDock® 2.0 control system — providing LED 3-color light communication and optional connectivity to the myQ® Enterprise platform.
Features & Benefits
All Poweramp® TPR® truck-positioned vehicle restraints are designed to secure a cargo trailer's rear impact guard to reduce the likelihood of premature trailer separation during the loading and unloading process. The TPR vehicle restraint features an electric mechanical restraint mechanism, inside iDock control panel, exterior communication lights, and instructional signs.The durable zinc-plated steel housing is designed to withstand impact from trailers and protect all internal components from any weather conditions. The TPR vehicle restraint is engaged electrically. The IP67-rated motor is 1/10 HP TENV 115V single-phase, with a NEMA 4X control panel.The TPR® restraint system is designed to withstand a pulling force in excess of 32,000 lbs., giving an added margin of safety and protection. Maximum operational range is 4" to 10" horizontally from the face of dock bumpers, and 9" to 30" vertically above drive approach.
The TPR restraint uses advanced iDock® Controls with an LED 3-color light communication system. As a truck approaches, the exterior light is green and the interior light is red. Once the trailer is restrained, the interior light changes to green and the exterior light to red, warning the driver not to pull away from the dock. When the trailer is released and the restraint hook is safely stored, the lights revert back to a green exterior and red interior. An interior amber "caution" light is used if needed for bypass mode or faults. Low-profile exterior lights are standard with LED for extended life. One light shows a red X and a green circle for color-impaired individuals. A set of caution signs warns truck drivers to "Pull in or out on green only."
Applications
The TPR® vehicle restraint is highly adaptable to new or existing loading docks and is the right choice for facilities that need a dependable, proven automatic vehicle restraint system for standard trailer types. It is ideal where push-button operation, continuous hook engagement, and integrated light communication are priorities.
The TPR is the right fit for:
- New dock installations and retrofits — available as a standalone unit or integrated with other loading dock equipment, making it easy to specify for new construction or add to an existing dock
- Facilities with standard rear impact guards — the integral motor, gear, and brake assembly are specifically designed for the TPR, keeping the hook continuously engaged against the RIG throughout the loading and unloading process
- Docks requiring leveler interlock — integrated iDock® Controls support safe leveler interlock and optional restraint-engaged interlock controls with the leveler
- Operations needing a wide service range — the low-profile 9" carriage covers a service range of 9" to 30" off grade, accommodating a broad variety of trailer heights
- Multi-dock facilities — iDock 2.0 Controls come standard and ready to connect online with the optional myQ® Enterprise platform for facility-wide visibility and monitoring
Selection Assistance
The TPR® is the right starting point for most loading dock applications — a proven, push-button automatic vehicle restraint that works on standard trailers with clear rear impact guards, adapts to new or existing docks, and integrates easily with your leveler and door controls. If your facility receives intermodal trailers, trailers with obstructed RIGs, or if your drivers are reversing to release the restraint, talk to Barron's team about the TPR UniLock® — the upgrade model built to solve those specific challenges. Contact us or request a quote to get started.