What is Shackle for Anchor Chain
CSAC Chain Joining Shackle for Anchor Chain is a high-strength marine connection fitting designed for anchor chains and mooring chains. It adopts a two-part D-shaped structure with taper pin and chock locking mechanism, realizing safe, stable and reversible connection between chain links. As a core supporting component of marine chain systems, Shackle for Anchor Chain maintains chain alignment under heavy loads and adapts to long-term service in corrosive seawater environments.
Founded in 1986, Zhoushan Zhongnan Anchor Chain Co.,Ltd. is located in Zhoushan City, adjacent to Putuo Mountain and Ningbo-Zhoushan Port—the world’s largest port. Covering 18,000 square meters, the company is a national high-tech enterprise, provincial specialized and sophisticated manufacturer, and a key backbone enterprise in China’s shipbuilding supporting industry. CSAC Chain is the core brand of the company, focusing on the R&D, production and sales of modern ship anchor chains, offshore engineering mooring chains and supporting fittings including Joining Shackle for Anchor Chain.
The company holds 17 domestic and foreign patents, won the Second Prize of Zhejiang Science and Technology Progress Award, and has in-depth industry-university-research cooperation with Jiangsu University of Science and Technology. It owns a Luxembourg patent for Automatic Production Device Of Chain Stud, ensuring advanced technology and stable quality for CSAC Chain Joining Shackle for Anchor Chain.
Material & Structural Strength
Made of high-strength marine special steel, CSAC Chain Joining Shackle for Anchor Chain has guaranteed load-bearing performance. The optimized two-part D-shaped structure enhances connection stability, making the product suitable for long-term heavy-load marine applications.
Quick Installation & Reusable Design
The taper pin locking structure enables fast assembly and disassembly, reducing construction time for shipyards and offshore platforms. The Joining Shackle for Anchor Chain supports repeated use without performance degradation.
Marine Environment Adaptability
With excellent corrosion resistance and fatigue resistance, CSAC Chain Kenter Shackle works stably in harsh seawater environments. Two surface treatment options (black bitumen and hot-dip galvanized) are available for different working scenarios.
Complete Specification Coverage
CSAC Chain provides Joining Shackle for Anchor Chain with diameters ranging from 14mm to 122mm, fully covering conventional and customized demands for shipbuilding and offshore engineering projects.
| Diameter (mm) | Proof Load (kN) | Breaking Load (kN) | Approx. Weight (kg) | Surface Treatment |
|---|---|---|---|---|
| 14 | 85 | 125 | 1.2 | Black Bitumen |
| 50 | 1,160 | 1,650 | 47.0 | Hot-Dip Galvanized |
| 122 | 7,800 | 11,200 | 350 | Hot-Dip Galvanized |
Main Application Scenarios
Verified Project Case
Kenter Joining Shackle has been successfully applied to a North Sea FPSO mooring system. After long-term environmental testing, the product maintained stable connection performance and met the 20-year design service life, earning high recognition from international offshore engineering customers.
All CSAC Chain Joining Shackle for Anchor Chain products comply with international marine standards and have obtained authoritative certifications including CCS, BV, DNV, ABS, NK, LR, RS, KR, RINA.
Manufacturing follows ISO 1704, IACS W22 and API offshore standards. Each product undergoes material spectral analysis, proof load test, breaking load test, ultrasonic testing and magnetic particle testing to ensure defect-free quality.
1. R&D and Technical Strength
Supported by university research institutes and independent patents, CSAC Chain optimizes the structure and material formula of Joining Shackle for Anchor Chain, providing higher fatigue resistance than ordinary similar products.
2. Stable Manufacturing Capacity
Automated forging and precision machining equipment ensure consistent product tolerances. The full-size production line (14mm–122mm) meets one-stop procurement needs for global customers.
3. Brand and Service System
With over 30 years of marine chain manufacturing experience, CSAC Chain provides complete after-sales support including technical guidance, installation assistance and maintenance training, superior to small-scale manufacturers with limited capacity.
4. Logistics and Supply Chain
Adjacent to Ningbo-Zhoushan Port, CSAC Chain has efficient global shipping capabilities, reducing delivery cycles and transportation costs for customers worldwide.
CSAC Chain is a trusted brand in the global marine chain industry. Choosing our Joining Shackle for Anchor Chain means you receive high-quality products, full technical support and long-term reliable service.
From raw material selection to finished product delivery, strict quality control is implemented throughout the process. We also provide customized services including surface treatment, size customization and third-party testing according to customer requirements.
CSAC Chain Joining Shackle for Anchor Chain uses anti-corrosion surface treatment as transportation protection. Relying on the geographical advantage of Ningbo-Zhoushan Port, we provide container, frame and bulk cargo transportation services to meet the delivery needs of global customers efficiently.
Q1: Can Joining Shackle for Anchor Chain be customized?
A: Yes. CSAC Chain provides OEM customization for diameter, load capacity and surface treatment of Joining Shackle for Anchor Chain based on customer requirements.
Q2: What is the difference between Kenter Joining Shackle and traditional bow shackles?
A: The two-part D-shaped design of CSAC Chain Joining Shackle for Anchor Chain allows fast, reversible chain connection, while traditional bow shackles are fixed and require manual pin installation.
Q3: How long is the service life of the product?
A: With proper maintenance, CSAC Chain Joining Shackle for Anchor Chain can serve for decades in marine environments, supported by strict testing and quality control systems.
Address
No. 10 Xinhui Road, Zhanmao Street, Putuo District, Zhoushan City, Zhejiang Province, China
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