As a long-term China manufacturer and supplier of marine anchoring components, CSAC Chain integrates forging, machining, and quality control processes to manufacture the Swivel Shackle Type A used in global ship anchoring systems. This component combines swivel rotation and shackle connection in a compact structure, allowing 360-degree movement while maintaining secure chain alignment.
Swivel Shackle Type A is a combined swivel and shackle connector commonly used between anchor chains and anchor shanks. Its swivel mechanism allows free rotation under load, which helps reduce chain twisting during anchoring and retrieval operations. This function improves anchor deployment efficiency and reduces stress on anchor chains and connecting components.
The swivel mechanism enables continuous rotation during anchor movement. This design helps maintain proper alignment between the anchor and chain, particularly when vessels shift due to currents or wind.
The compact body allows direct connection to the anchor shank or crown shackle, reducing the number of components in the anchor assembly.
The product is forged from marine-grade steel materials suitable for heavy-duty anchoring systems used on commercial vessels, offshore platforms, and port installations.
To withstand harsh marine environments, the swivel shackle can be finished with hot-dip galvanizing or bituminous coating to provide corrosion resistance during long-term seawater exposure.
| Item | Specification |
|---|---|
| Product Name | Swivel Shackle Type A |
| Brand | CSAC Chain |
| Diameter Range | 14 mm – 122 mm |
| Material | Marine Grade Forged Steel |
| Rotation | 360 Degree Swivel Function |
| Surface Treatment | Hot-Dip Galvanized / Bituminous Coating |
| Connection | Anchor Shank or Crown Shackle |
| Certification | CCS, BV, DNV, ABS, NK, LR, RS, KR, RINA |
| Application | Marine Anchoring and Offshore Mooring Systems |
The Swivel Shackle Type A is commonly installed between anchor chains and anchors on cargo vessels, tankers, and bulk carriers. It helps prevent twisting when the vessel changes position.
Offshore platforms, FPSO vessels, and floating structures rely on swivel shackles to maintain flexible chain movement in dynamic sea environments.
Port infrastructure and shipyard anchoring equipment also utilize swivel shackles to maintain stable anchor connections during docking operations.
All CSAC Chain Swivel Shackle Type A products can be supplied with inspection and certification from international classification societies, including:
Each unit may undergo dimensional inspection, material analysis, and load testing before delivery.
Zhoushan Zhongnan Anchor Chain Co., Ltd was established in 1986 and focuses on the manufacturing of ship anchor chains and offshore mooring chains. The company has developed extensive production and engineering experience in marine chain components.
The company is located in Zhoushan City near Ningbo-Zhoushan Port, one of the largest ports in the world. This location provides convenient logistics for global shipping.
The factory covers approximately 18,000 square meters and is equipped with forging equipment, machining facilities, and testing systems designed for marine hardware production.
The company holds 17 domestic and international patents and received the second prize of Zhejiang Province Science and Technology Progress Award. It is recognized as a high-tech enterprise and a specialized manufacturing enterprise in Zhejiang Province.
Zhoushan Zhongnan Anchor Chain Co., Ltd cooperates with Jiangsu University of Science and Technology and jointly established the Research Institute of High-Strength Marine Cable Intelligent Control Optimal Design. This collaboration focuses on improving chain structure optimization, strength performance, and manufacturing automation.
The company also holds the Luxembourg patent for the Automatic Production Device Of Chain Stud, which improves manufacturing efficiency and consistency.
It is designed to connect anchor chains with anchors while allowing rotational movement to prevent chain twisting.
The product is available in nominal diameters from 14 mm to 122 mm.
Yes. Certificates from CCS, BV, DNV, ABS, LR, NK, KR, RS, and RINA can be supplied depending on project requirements.
Customers can choose between hot-dip galvanizing or bituminous coating depending on environmental conditions.
Customization for dimensions, coatings, and inspection requirements can be arranged according to project specifications.
Address
No. 10 Xinhui Road, Zhanmao Street, Putuo District, Zhoushan City, Zhejiang Province, China
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