1. Your unique applications are PERSONALLY REVIEWED by our specialists.
  2. We IDENTIFY risk exposures and RECOMMEND solutions to mitigate those risks.
  3. Our INSTALLATION SURVEYS ensure the highest level of loading dock safety.

Shadow Hook Restraints

Get the Highest Level of Trailer Separation Protection

With more than three decades of proven performance, the original Dok-Lok rotating hook design offers the highest level of safety and performance. The exclusive Corner-Vu and Leveler-Vu light communication systems provide full-time communication of the Dok-Lok control box for unmatched security.

The unique rotating hook is designed to address all major types of trailer separation accidents:

  1. Aggressive early departure.
  2. Trailer creep and dock walk.
  3. Trailer tip due to landing gear collapse.
  4. Trailer up-ending.


WHEEL-LOK Wheel Lift gate trailers, Straight trucks A second wheel guide can be added to "square"trailers to the dock.
ROTATING HOOK RESTRAINTS 2-Point Entrapment Hook Early departure, Trailer creep & dock walk, Landing gear failure, Trailer upending The RHR is the original vehicle restraint and is the most proven and widely sold restraint in the world.
SHADOW HOOK RESTRAINTS 2-Point Entrapment Hook Secures intermodal containers or trailers with rear impact guard obstructions. The SHR provides safety for docks that receive overseas containers.
STABILIZING TRAILER RESTRAINTS 2-Point Entrapment Hook Stabilizes trailer movement vertically and horizontally 5 year parts and labor warranty applies
VERTICAL BARRIER RESTRAINTS Recessed Vertical Barrier Early departure, Trailer creep Available with combo power unit with hydraulic levelers, auto light packages can be added to manual units.
RITE-VU Clear communication Newest generation of safe loading dock communication. Available with all Rite-Hite Dok-Lok Vehicle Restraints

Making the right choice of product and supplier is difficult. Contact Pugleasa Company today and find out why we're the go-to firm for businesses across the midwest. Becoming educated as to your application and risk exposure is key.

NEW RHR-4000 Rotating Hook Restraint

The NEW RHR-4000 Dok-Lok helps prevent all types of trailer separation. A proven innovation that truly delivers the highest level of safety for your loading dock. See the new Shadow Hook design and the exclusive, full-time communication system.

Case Study


This customer had a unique dock layout that was originally outfitted with a competitor's vertical barrier vehicle restraint In addition to reliability issues, the customer was having trailer/dock separation issues multiple times a year, resulting in costly product damage and a real safety concern.


Pugleasa evaluated the operation and environment with the customer and ultimately installed an STR-4100 Dok-Lok Restraint that stabilizes the trailer and with a rotating hook design that securely entraps the trailer’s rear impact guard under the most challenging of dock conditions. 


This product has eliminated the trailer separation issues and provides a safer working environment.  After trying one STR-4100, this customer had Pugleasa install eight more units. Pugleasa Company has been helping customers address loading dock safety issues and improve loading dock safety for over 50 years. Contact us today with your situation. Pugleasa Company has been helping customers address loading dock safety issues and improve loading dock safety for over 50 years. Contact us today with your situation.