Wolfe Industrial Services is proud to provide and service Nordock Loading Dock Trailer Restraints. We put our expertise to work for our customers to find the trailer restraints that fit with your needs and your existing loading dock equipment. Wolfe Industrial will also expertly service your existing loading dock trailer restraints, no matter which type you currently use.
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TRUCK-LOCK® Series Manual Trailer Restraints
The NORDOCK TRUCK-LOCK® Series of Trailer Restraints improves safety by securing the truck during loading/unloading operations with a 32,000 lb. restraining force.
The NORDOCK MTL Model is an affordable manually operated system designed to secure the truck by engaging the rear impact guard with a large barrier.
The barrier mounted sensor on Model MTL-300 provides positive communication to the operator that the rear impact guard is engaged. The spring-loaded barrier automatically adjusts to various truck heights and maintains positive contact during loading operations.
The low profile barrier /housing stores at only 9" high and raises to 30" to restrain all types of trucks. In the stored position, the housing/barrier is stored clear of incoming trucks while protecting working parts from weather and debris.
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Truck-Lock Trailer Restraint

Low profile stored position
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Model MTL-100 & MTL-200 Features
- Non-impact design
- Manual control bar actuation
- Barrier stores 9” high to escape impact from low rear impact guards
- Barrier automatically adjusts to truck movement during loading
- Vertical locking hook secures virtually all rear impact guards with in excess of 32,000 lb. restraining force
- Easy to install and simple to operate
- Inside and outside communications signs
- All weather zinc plated components for superior durability
- Vertical operating range from 9” to 30 “
- 5 year structural warranty
- Virtually no maintenance required
- Housing encloses working parts from inclement weather and debris
- Self cleaning guide track
- Mounting force in excess of 100,000 lbs.
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Communication system includes inside & outside flashing lights with wall mounted sign
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Model MTL- 300 Features
- Non-impact design
- Manual control bar actuation
- Barrier stores 9” high to escape impact from low rear impact guards
- Barrier automatically adjusts to truck movement during loading
- Barrier sensor with alarm communicates positive lock position
- Dock leveler interconnect
- Vertical locking hook secures virtually all rear impact guards with in excess of 32,000 lb. restraining force
- Easy to install and simple to operate
- Solid state controls
- NEMA 12 panel enclosure
- All weather zinc plated components for superior durability
- Vertical operating range from 9” to 30 “
- Inside and outside communications lights and signs
- 5 year structural warranty
- Virtually no maintenance required
- Housing encloses working parts from inclement weather and debris
- Self cleaning guide track
- Mounting force in excess of 100,000 lbs.
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MTL-300 control panel
 
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TRUCK-LOCK® Series Automatic Trailer Restraints
Are a premium automatic system designed to secure a truck at the loading dock by engaging the rear impact guard with a large barrier. The HYDRA-FLOAT barrier automatically adjusts to various truck heights and maintains positive contact during loading operations. A barrier mounted sensor provides positive communication that the rear impact guard is engaged. The operator activates and stores the barrier with a push of a button.
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Model ATL vehicle restraint
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Model ATL-400 & ATL -450 Series Automatic Trailer Restraints
- Non impact design
- Barrier store 9” high to escape impact from low rear impact guards
- HYDRA-FLOAT barrier automatically adjusts to truck movement during loading
- Vertical locking hook secures virtually all rear impact guards with excess of 32,000 lb.restraining force
- Simple push button operation
- NEMA 12 panel enclosure
- All weather zinc plated components for superior durability
- Vertical operating range from 9” to 30”
- Inside and outside communication lights and signs
- Limited 5 year structural warranty
- Virtually no maintenance required
- Housing encloses working parts from inclement weather and debris
- Self cleaning guide track
- Mounting force in excess of 100,000 lb
- Self cleaning guide track
- Barrier mounted sensor communicates positive lock position
- Dock leveler interconnect
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Control panel
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Model ATL-500 Series Automatic Trailer Restraints
Offers all of the above plus:
- Simple push button operation
- Easy to install and simple to operate
- Stored down switch
- Dock leveler interconnect
- Safety stop run time monitor
- Drive down system with obstruction reverse sensor
- Solid state controls
- All weather zinc plated components for superior durability
- Safety system includes red/green lights and signs inside and outside
- Limited 5 year structural warranty
- Virtually no maintenance required
- Housing encloses working parts from inclement weather and debris
- Self cleaning guide track
- Mounting force in excess of 100.000 lbs.
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Communication system includes inside & outside flashing lights with wall mounted sign
 
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Model ATL-500 Series Automatic Trailer Restraints
Offers all of the above plus:
- Simple push button operation
- Barrier sensor with alarm communicates positive lock position
- Stored down switch
- Safety stop run time monitor
- Drive down system with obstruction reverse sensor
- PLC controller
- NEMA 12 panel enclosure
- All weather zinc plated components for superior durability
- Vertical operating range from 9” to 30”
- Safety system includes LED red/green lights and signs inside and outside
- Limited 5 year structural warranty
- Virtually no maintenance required
- Housing encloses working parts from inclement weather and debris
- Self cleaning guide track
- Mounting force in excess of 100,00 lbs.
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NORDOCK PIT-HOOK Trailer Restraint
The non impact invisible alternative
Features
- Non-impact vehicle restraint allows unit to mount under dock pit away from debris
- Design allows for easy snow removal, clean loading dock appearance
- Offers unobstructed delivery for hydraulic lift gate trailers and smaller delivery vehicles
- Exceeds 32,000 lbs. of restraining force
- Maintains a tight hold on the rear impact guard virtually eliminating trailer creep
- Helps eliminate landing gear collapse by keeping trailer tight to bumpers
- Working range of down to 9" below grade up to 30" above grade
- NEMA 12 control box with PLC controls
- Hook floats with trailer during loading
Options
- LED red/green inside/outside lights
- NEMA 4 watertight enclosure
- Dock leveler stored interlock
- Integrated control panel designed to operate all loading dock equipment from a single panel
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NORDOCK PIT-HOOK
Trailer Restraint
 
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