Quick Release Mooring Hooks for Safe and Efficient Mooring

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Straatman is a trusted designer and supplier of Quick Release Mooring Hooks and Quick Release Hooks, supporting safe and efficient mooring operations across ports and terminals worldwide. These systems play a key role in improving safety for oil and gas tankers, floating storage and regasification units (FSRU), floating production storage and offloading vessels (FPSO), and other marine vessels.

Quick release mooring hooks enable fast and controlled release under load. As a result, operators can respond quickly in demanding maritime conditions and maintain operational control.

Drawing on decades of experience, Straatman delivers quick release hooks for a wide range of terminal types, including oil, gas, chemical, iron, coal, and grain terminals. Moreover, our solutions are available with electric or hydraulic release, load monitoring, remote control functionality, and rope keepers. Therefore, each system aligns with terminal operations while remaining practical and easy to use.

Over 50 years of experience in manufacturing

Designed, engineered and built in The Netherlands

High quality products and excellent service level

Continuous innovation and improvement

Products

Built for Demanding Maritime Operations

Quick release mooring hooks for jetties

Quick release offshore hooks FPSO & FSRU

Quick release mooring Hooks for LNG terminals

Mooring buoy quick Release Hook

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Quick Release Hooks, proven Straatman quality

As a leading supplier of Quick Release Hooks, Straatman delivers systems that guarantee safe and efficient mooring operations across oil, gas, chemical, iron, coal, and grain terminals worlwide.

We test all of our hooks on our calibrated testing machine to ensure they meet or exceed industry standards. In addition, standard test certificates are included in the user manual. If desired, a classification authority of your choice can witness the test.

Straatman Quick Release Mooring Hook

An example of our quick release mooring hooks including various options:

Rope keepers

In some specific situations, there is a risk of the mooring rope slipping of the quick release hook. In order to avoid this risk a hook can be euiped with a rope keeper that prevents the rope from slipping

Remote release

All quick release hooks can be equipped with an electric or electric-hydraulic release mechanism.

Mooring load monitoring system

With inhook load cell calibration facility, locally and remote controlled ny our MoorControl software.

Self supporting

All hooks are self supporting. All movements are limited to prevent contact with the structure.

Integrated vertical capstan

The capstan allows hauling in of the mooring line in a safe and efficient way.

Explosion proof version components

For hazardous zone, in conformance with ATEX, IECEx and Class 1 division 2.

Counter balanced hook

The hook parts are made of forged steel and are counterbalanced.

Configurations and Custom Options

Every project is different and so are our solutions. Straatman offers a wide range of Quick Release Mooring Hook configurations and features, including:

Electric-hydraulic release mechanisms
Load monitoring systems
Remote control operation
Rope keepers and customized foundations

No matter the scale or complexity of your project, Straatman provides the reliability and expertise to keep your operations safe, efficient, and under control.

Engineered for Safety and Performance

Safety drives the design of our quick release mooring hook. Every component supports controlled, reliable mooring and release operations in daily use.

We design, manufacture, and test all parts in-house. This gives us full control over quality, tolerances, and performance at every stage. The result is a robust system that delivers consistent operation and a long service life.

The hook operates smoothly, even under high loads and in demanding environmental conditions. This reduces wear, limits operational risk, and supports safe working procedures for quay and terminal personnel.

STRAATMAN PRODUCT

What to expect from our Quick Release Hooks

Full Control Over Complete Process
Our mooring hooks are designed, engineered, and tested in-house in our facilities in the Netherlands. Because we manage the entire process ourselves, we can guarantee that every product meets or exceeds industry standards.
Skilled and Certified Experts
Our team consists of highly trained and certified professionals. Their expertise ensures precision manufacturing, strict quality control, and continuous innovation to meet evolving industry needs.
High-Quality Materials
We carefully select only the best materials for our hooks. Every material is tested and certified to ensure strength, durability, and long-term performance in harsh marine environments.
Advanced Welding and Testing
All welds undergo non-destructive testing (NDT) to ensure they are flawless and meet strict safety standards. This guarantees that every mooring hook is built for maximum reliability.
Certified Load Testing
Every Quick Release Hook is tested on our calibrated testing machines to verify its strength and functionality. This ensures that the hooks perform safely under real-world conditions.
Continuous Improvement and Innovation
We are always developing and improving our mooring hooks to adapt to new challenges and enhance efficiency. Our commitment to research and innovation helps us deliver the best solutions for our customers.

How We Ensure Safety

At Straatman, safety is our top priority. With over 50 years of experience, our Quick Release Mooring Hooks are trusted worldwide in industries like oil & gas, chemicals, maritime, defense, and construction. Our hooks are designed for safe and reliable operation in all conditions:

Spark-Free Swiveling – The hooks rotate freely, preventing sparks for maximum safety.
Certified Electrical Equipment – If needed, components can be fully certified for hazardous environments.
Smart & Easy Design – Engineered for effortless and safe operation.
Integrated Safety Software – Our software solutions help reduce risks and improve efficiency

facilities in Holland

Our factory in Holland is our home base for design, engineering, production, and testing. This means that we can ensure the quality of our products and processes from start to finish. We are very proud of our unique ability to offer our clients this level of control and transparency.

We therefore invite our clients to visit our factory in the Netherlands. A factory visit offers a clear view of our production process and the way we build our products. It also demonstrates our ongoing commitment to quality, from first design to final testing.

Proven in practice

For over 50 years, Straatman has designed and manufactured quick-release mooring hooks. Today, these systems operate in ports and terminals worldwide, supporting industries including oil and gas, chemical, maritime, defense, and construction. Over time, this broad application has proven the reliability and safety of the hooks. As a result, Straatman supplies quick release hooks for a wide range of projects.

Traceability

Material traceability is a key part of our quality assurance process. We track all materials from purchase to final production to ensure consistent quality and safety. Each material is uniquely identified, registered, marked, and supplied with material certificates. This allows Straatman to deliver reliable products that meet customer and industry requirements.

Continuous Innovation

We are constantly innovating and developing new products and solutions. In fact, our team of dedicated engineers and developers is always working on improvements and new ideas. We regularly introduce new products and solutions to the market.

Your mooring project

Straatman supplies single and multi-hook mooring systems, including custom foundations and accessories.

Custom Options Available – Add features such as electric-hydraulic release, load monitoring, remote control, or rope keepers.
Tailored to Your Needs – Our engineers translate your requirements into robust, reliable mooring systems.
Expert Support – From concept to commissioning, our team is ready to help you build the perfect mooring solution.

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WAY OF WORKING

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.

FREQUENTLY ASKED QUESTIONS

What are quick release mooring hooks?

Quick release mooring hooks secure vessels to docks, piers, and other mooring structures during port operations. They provide a controlled and efficient way to moor and release vessels, especially in ports where safety and turnaround time matter. These hooks allow operators to release mooring lines quickly in emergencies. The release can be activated manually or by remote control, reducing risk for personnel and preventing damage to vessels and infrastructure.

Our quick release mooring hooks handle working loads from 40 to 200 metric tons. They support safe operations across a wide range of vessels, including tankers and LNG carriers.

What are quick release mooring hooks used for?

A quick release mooring hook system provides controlled, safe, and efficient mooring for vessels in ports and terminals.
You mainly see these systems in:
. Oil and gas terminals
. Chemical and liquid bulk terminals
. Liquefied natural gas terminals
. Dry bulk terminals (coal, ore, grain)
. Container and general cargo terminals
. Offshore jetties and single-point mooring locations

Typical reasons to use such a system:
Safety: Less manual work with lines close to the water, less risk for crew and operators.
Operational control: Better control of the mooring situation, often combined with load monitoring and mooring control systems.
Speed: Faster mooring and unmooring, which can reduce berth time.
Emergency release: Ability to free the vessel quickly when there is a problem, for example, bad weather, a drifting ship, or an emergency shutdown.

What are quick release mooring hooks made of?

Our quick release mooring hooks are made of the finest Dutch steel. The entire production process is located in the Netherlands to be able to ensure the quality of the processes and products. We focus on continuous innovation, but always ensure that our products comply with strict International rules and regulations. For instance, our quick release hooks and related mooring solutions are fully compliant with MEG4-OCIMF guidelines.

Are Straatman quick release mooring hooks in compliance with OCIMF regulations?

Yes. Straatman’s quick release mooring hooks comply with OCIMF Mooring Equipment Guidelines, 4th Edition (MEG4). These guidelines define industry standards for the safe design, testing, and use of mooring equipment at tanker and gas terminals.

All hooks are designed, manufactured, and tested to meet these requirements, ensuring reliable and safe performance in operational conditions.

Are the quick release mooring hooks suitable for hazardous areas?

Yes. Straatman’s quick release mooring hooks and related equipment can be supplied in full compliance with ATEX, IECEx, UL, and other applicable regulations. These standards confirm that the equipment is suitable for use in hazardous environments and supports safe and reliable operations.

Our quick release mooring hooks ensure controlled and safe release of mooring lines in both normal and emergencies. The system supports efficient mooring operations across a wide range of marine environments, including demanding and high-risk locations.

The hooks are available with both manual and remote release options. This flexibility allows operators to respond quickly when needed and enhances overall operational safety.

The design also focuses on ease of installation and maintenance. Simple installation reduces commissioning time, while straightforward maintenance helps limit downtime and keeps operations running smoothly.

In short, Straatman’s quick release mooring hooks meet strict international safety standards, offer reliable and flexible release options, and are designed for efficient installation and long-term operation in hazardous areas.

What is Straatman’s standard surface preparation and paint standard?

Straatman applies strict surface preparation and paint standards to ensure long-term protection and durability of its products, including the quick release mooring hook. Our standard surface preparation complies with ISO 12944, corrosion category C5M. We use coating systems supplied by Hempel as standard.

The standard finish for our quick release mooring hooks is RAL 9005 black. This coating offers reliable protection against harsh marine conditions and provides a neutral, professional appearance.

Alternative finishes are available on request. We can supply different RAL colours or apply coating systems from other approved manufacturers, such as International, Jotun, or Sigma, to match project-specific requirements.

This flexible approach allows each quick release mooring hook to meet both functional and visual specifications without compromising corrosion protection or service life.

Which other mooring solutions does Straatman offer?

We have developed a complete range of quick-release towing and mooring hooks. Our quick-release mooring hooks are designed to ensure efficient mooring operations at oil, gas, chemical, iron, coal, and grain terminals. Moreover, all mooring hooks are available in various assemblies and all kinds of specific features can be added. Straatman also offers the following other mooring solutions:

. Berthing Aid Systems (also known as Docking Aid Systems);
. Control panels;
. Software solutions;
. Environmental Monitoring Systems (EMS);
. Portable devices.
. Smart Bollard

What is the safe working load or capacity of a quick release mooring hook?

The capacity of a quick release mooring hook is the maximum line load it can safely hold. This is also known as the safe working load.

Each hook has a defined rating, for example, one hundred, one hundred fifty, or two hundred metric tons. The required capacity is based on vessel size, environmental conditions, mooring line layout, and the results of the berth mooring analysis.

When multiple hooks are used in one unit, the total capacity is the sum of the individual hooks. The rated capacity of each hook must not be exceeded.

Can the hook be released while it is still under load?

Yes. A quick release mooring hook is specifically designed to release a mooring line while it is still under tension, up to the hook’s rated capacity.

This is critical in emergencies, where there is no time to gradually reduce line loads and the vessel must leave the berth quickly. Releasing a loaded line manually from a bollard is unsafe, while a quick release hook allows controlled release from a safe distance.

The release mechanism is engineered to operate reliably under full load. Both the structure and mechanical components are designed to handle holding and releasing at the rated capacity, ensuring the line disengages cleanly without jamming.

Which options or configurations are available for quick release mooring hooks?

Quick release mooring hooks can be tailored to the needs of each terminal. Common options include:

1. Hook configurations
Single, double, triple, or quadruple-hook units, depending on the number of mooring lines, required capacity and available jetty space.

2. Line handling
Optional integrated capstan for safer and easier handling of heavy mooring lines, especially in rough conditions.

3. Release and control
Local release at the hook, remote release from a control panel, or group release for multiple hooks at once.

4. Monitoring and system integration
Line load monitoring, alarms for high loads and connection to terminal control or mooring management systems.

5. Design and environmental choices
Different foundation types, special coatings, explosion-safe versions and custom designs for unique line angles or environments.