Marine Chain Stopper
Secure Anchor Chain Locking for Safe Marine Operations
A chain stopper is an essential component of every ship anchoring system. Installed between the windlass and the anchor chain, it secures the chain after anchoring, reducing the load on the windlass and improving overall operational safety.
NYBON Marine manufactures heavy-duty marine chain stoppers for commercial vessels, offshore ships, and marine engineering projects. Built for strength, durability and reliable performance, our products help protect anchoring equipment in demanding marine environments.
What Is a Marine Chain Stopper?
A marine chain stopper is a deck device used to hold an anchor chain firmly in place after the anchor has been deployed or recovered.
Instead of allowing the windlass to carry the full load, the chain stopper transfers the tension directly to the ship’s deck structure. This improves the service life of the windlass and enhances the safety of the entire anchoring system.
Chain stoppers are widely used on:
- Cargo Ships
- Container Vessels
- Tankers
- Offshore Support Vessels
- Naval Ships
- Marine Engineering Vessels
Why Is a Chain Stopper Important?
Although small compared with other marine deck equipment, a chain stopper plays a vital role in protecting the anchoring system.By securing the anchor chain independently, it:
- Reduces load on the windlass
- Improves anchoring safety
- Prevents unexpected chain movement
- Minimizes equipment wear
- Extends the service life of the anchoring system
Reliable chain stoppers are especially important for vessels operating in rough seas or offshore environments where anchor chain loads can change rapidly.
Anchor →Anchor Chain→Chain Stopper→Anchor Winch→Ship Deck
Types of Marine Chain Stoppers
NYBON Marine supplies various chain stopper designs to suit different vessel types and anchoring systems.
Roller Chain Stopper
Suitable for commercial vessels requiring smooth chain movement during anchoring operations.
- Easy chain operation
- Low friction
- Simple maintenance
Devil’s Claw Chain Stopper
A traditional and reliable solution for securing anchor chains.
- Strong locking force
- Compact structure
- Proven performance
Pawl Chain Stopper
Designed for quick engagement and secure chain holding.
- Reliable locking
- Fast operation
- Suitable for various chain sizes
Customized Chain Stopper
Available according to vessel layout and anchor chain specifications.
Typical Applications
Commercial Ships
Protects anchoring systems during routine port operations.
Offshore Support Vessels
Secures anchor chains under high dynamic loads.
Installed during new vessel construction and retrofit projects.
Marine Engineering
Suitable for offshore construction vessels and specialized ships.
Advantages of Our Marine Chain Stoppers
Designed for demanding marine environments, our chain stoppers provide dependable performance and long service life.
Key Benefits
- High load capacity
- Durable steel construction
- Smooth chain engagement
- Corrosion-resistant surface treatment
- Low maintenance
- OEM customization available
Industry Insights: Protecting the Entire Anchoring System
Many people focus on the anchor or windlass when selecting anchoring equipment, but the chain stopper is just as important. By transferring chain tension away from the windlass, it reduces mechanical stress and helps prevent premature wear.
In modern ship design, a properly matched combination of marine anchor, anchor chain, chain stopper and anchor winch creates a safer and more reliable anchoring system. Choosing compatible components improves operational efficiency and simplifies long-term maintenance.
Technical Specifications
| Chain Diameter | 17.5–132 mm |
|---|---|
| Working Load | 50–1,500 kN |
| Breaking Load | Up to 2,500 kN |
| Material | Cast Steel / Alloy Steel |
| Surface Finish | Painted / Hot-Dip Galvanized |
| Installation | Deck Mounted |
| OEM Service | Available |
Just For Your Trust
How to Choose the Right Chain Stopper
Customized Chain Stopper Solutions
NYBON Marine provides customized chain stoppers based on project requirements.
Available customizations include:
- Chain diameter
- Load capacity
- Mounting dimensions
- Surface treatment
- Material selection
- OEM manufacturing
Our engineering team supports shipyards, vessel owners, and marine equipment distributors with practical anchoring solutions.
Every chain stopper is manufactured under strict quality control procedures.
Inspection includes:
- Material verification
- Welding inspection
- Machining inspection
- Dimensional inspection
- Assembly inspection
- Functional testing
Our quality management system helps ensure every product delivers reliable performance throughout its service life.
Frequently Asked Questions
What is the purpose of a chain stopper?
A chain stopper secures the anchor chain and transfers the load from the windlass to the ship’s structure.
Can the chain stopper be customized?
Yes. Chain size, dimensions, load capacity and installation details can all be customized.
Which vessels use chain stoppers?
They are widely used on cargo ships, tankers, offshore vessels, naval ships and marine engineering vessels.
Do you supply matching anchor chains?
Yes. We supply marine anchors, anchor chains, chain stoppers and complete anchoring equipment.
Do you provide OEM manufacturing?
Yes. OEM production is available according to customer drawings and specifications.
