Water Tight Swivel Type Anchor Releaser

Functional Definition and Operating Principle

The Water Tight Swivel Type Anchor Releaser, manufactured by CSAC Chain, is typically installed on the bulkhead or access door of the anchor chain locker. Its primary function serves as the final connection point between the bitter end of the anchor chain and the ship's hull.

Emergency Anchor Release: In situations where the vessel faces a fire, grounding, or severe storm—necessitating the immediate severance of the connection to the anchor—crew members can remotely release the anchor from outside the compartment, thereby avoiding the need to enter the hazardous interior of the chain locker.

Rotational Compensation: The device features a built-in swivel mechanism that automatically counteracts torsional forces at the bitter end of the anchor chain, preventing jamming caused by stress concentration.

Watertight Integrity: The unit is equipped with a robust, multi-stage sealing structure designed to prevent seawater from penetrating the compartment through the anchor release aperture, even under severe sea conditions.

Technical Specifications

CSAC Chain Technical Innovation Modules 

Patented Watertight Sealing Technology

Leveraging our patented sealing system—the "Water Tight Swivel Type Anchor Releaser"—this device maintains an exceptional level of protection under both static and dynamic conditions. This is critical for ensuring that the equipment rooms surrounding the chain locker remain dry, thereby effectively preventing seawater corrosion of the vessel's hull structure.

Fatigue-Resistant Swivel Mechanism

The results of our joint R&D project with the Jiangsu University of Science and Technology—titled "Optimized Design for High-Strength Marine Cables"—have been successfully integrated into CSAC Chain accessories. By optimizing the load-bearing surfaces of the swivel bearings, our anchor releasers achieve a significantly longer service life when subjected to alternating loads. This ensures that even after years of dormancy, the mechanism remains fully flexible and reliable the moment operation is required.

Core Brand Competencies 

Precision Manufacturing and R&D Expertise

As a designated "Specialized, Refined, and Innovative" (SRI) enterprise in Zhejiang Province, Zhoushan Zhongnan Anchor Chain holds 17 patented technologies. We go beyond merely manufacturing anchor chains; our primary focus lies in ensuring the overall stability of the entire mooring system. Every Water Tight Swivel Type Anchor Releaser is manufactured under the direct supervision of technicians with 30 years of industry experience, guaranteeing that mechanical tolerances are controlled within extremely tight limits.

Rigorous Testing Protocols

We do not rely solely on experience. Every CSAC Chain anchor releaser undergoes a comprehensive series of tests:

Airtight/Watertight Pressure Testing: Simulating deep-water pressure environments;

Simulated Anchor Release Testing: Verifying the responsiveness and flexibility of the trigger mechanism under nominal load conditions;

Magnetic Particle Testing (MT): Detecting and ruling out any minute cracks or defects resulting from casting or forging processes.