Quick release towing hook

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Our quick release towing hook (also known as a disc hook) is especially designed to guarantee safe operation on work boats, supply vessels, harbor vessels and tugboats. It is available with manual or remote release, and can be customized with different load capacities and materials.

Over 50 years of experience
Dutch high-quality product
Every hook has been tested before it leaves our factory
Certified on every necessary level

Quick release towing hooks – type GSH

The Straatman type GSH quick release towing hook supports safe and efficient towing operations on a wide range of vessels. Operators use this hook on workboats, supply vessels, harbor and coastal vessels, firefighting ships, and tugboats.

Operators can operate the GSH towing hook manually using a lever or rope. Even at full safe working load, the required operating force remains below 33 pounds. In addition, the two-step release mechanism prevents accidental opening during operation. The counterbalanced disc design allows easy manual reset after release. During release, the disc rotation limits the energy impact.

Moreover, the Straatman type GSH quick release towing hook is available in multiple capacities. Safe working loads range from 15 to 100 tonnes, allowing the hook to suit various vessel types and towing applications.

Options

We supply quick-release towing hooks with a wide range of available options, including:

  • Spring-loaded shock absorber
  • Customized designs
  • Local hydraulic or pneumatic release
  • Remote-controlled release
  • Load monitoring system
  • Hook foundation/bracket/towing post

Testing of quick release towing hooks

We test every quick-release towing hook at our facility using a calibrated 3,500 kN hydraulic testing machine. Therefore, each hook meets defined reliability and safety requirements before delivery.

For disc-type towing hooks, we perform load testing at 200 percent of the specified safe working load. The GSH-100 model forms an exception and undergoes testing at 150 percent of its safe working load. In addition, we test the release performance of every hook at the safe working load to verify the correct and consistent operation of the release mechanism. If required, a classification authority of your choice can witness the tests.

Specials

In addition to our standard range of quick-release towing hooks, we offer the flexibility to produce and supply a wide range of options and customized designs to fit your specific needs.

Thanks to our in-house facilities, we are equipped to quickly and effectively respond to special requests, ensuring that your specific requirements are met with precision and efficiency.

In collaboration with one of our strategic partners, we have recently developed a hydraulic-powered shock absorber, specifically designed for our smaller range of quick-release towing hooks.

As shown in the image to the left, we also produced the integrated foundations for this project. These were designed to be welded directly to the deck surface of the tugboat.

Quick release towing hook – type GMH

Depending on project requirements and specific design details, our quick release mooring hook, model GMH, can often be used as a quick-release towing hook. To facilitate this dual functionality, the GMH hook is standard equipped with a device known as a rope keeper.

Technical specifications

  • Safe Working Load (SWL) range: 40 to 100 tonnes
  • Test load: 150%

Options

  • Custom-based SWL and proof load
  • Local hydraulic or pneumatic release
  • Remote-controlled release
  • Load monitoring system

What to expect from our Straatman team

  • High Quality Products
    Our products are designed and manufactured with attention to detail. We use the best materials and check everything to make sure you get the best.
  • Continuous Innovation
    We always try to be better. We keep learning, improving and investing in research and development so we can give you the newest and best solutions.
  • Dedicated and Enthusiastic Team
    Our team loves what they do. They work hard to meet your needs and make you happy.
  • Excellent Service Level
    We’re here to help you. Our team is always ready to answer your questions and make sure you’re happy with our service.
  • Certified on Every Necessary Level
    We meet all the important standards. This means our products are safe, reliable, and trustworthy.
  • We Do What We Promise
    We keep our promises. You can trust us to do what we say we will.

Download our Mooring & Berthing catalogue now

We track every material used, from procurement to final assembly. Each component is registered and certified, ensuring full material traceability.
 Our certified welders perform precise welds that undergo full NDT inspection, and all reports are included in the project documentation.

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