Joining Shackle

Definition & Function

A Joining Shackle is a high-strength steel connector that links two chain ends or integrates mooring system components. It uses a taper pin system to ensure a locked, reversible connection. These shackles are essential for FPSOs, floating wind platforms, semi-submersible rigs, and other offshore mooring applications, allowing seamless and flexible installation.

Core Advantages

• Secure Taper Pin Closure: Prevents accidental disconnection while allowing quick assembly/disassembly.
• Marine-Grade Steel: High tensile strength ensures reliable load-bearing capability under harsh sea conditions.
• Durable Surface Coating: Hot-dip galvanizing or black bitumen coating available for corrosion resistance.
• Precision Manufacturing: Accurate dimensions ensure compatibility with studless and stud link chains.
• Wide Size Range: Supports diameters from 14 mm to 122 mm to accommodate diverse mooring setups.

Technical Specifications

Standard specifications for CSAC Chain Joining Shackles:

Applications & Case Studies

• Offshore Mooring: Connects studless and stud link chains on FPSOs, semi-submersible rigs, and floating wind platforms.
• Port & Dock Operations: Provides secure links between mooring chains for ships and floating docks.
• Floating Energy Systems: Integrates chains and components in renewable offshore installations.
• Case Example: CSAC Chain Joining Shackles successfully installed on a North Sea offshore platform, maintaining secure chain connections under dynamic sea conditions for over 10 years.

Certification & Quality Assurance

• Certifications: CCS, BV, DNV, ABS, NK, LR, RS, KR, RINA
• Manufacturing Standards: ISO 1704, IACS W22, API offshore standards
• Quality Control: Material spectrochemical analysis, proof and break load tests, ultrasonic (UT) and magnetic particle (MT) inspections to ensure defect-free components.

Why Choose CSAC Chain?

Technical & Design Advantages

Our joining shackles benefit from collaboration with Jiangsu University of Science and Technology, resulting in optimized fatigue resistance and alignment performance.

Manufacturing Excellence

Advanced forging, machining, and heat treatment processes ensure consistent quality across the full diameter range from 14 mm to 122 mm.

Global Reliability

CSAC Chain Joining Shackles are trusted by offshore operators and shipyards worldwide for secure, versatile, and long-term chain connections.

After-Sales Service

• Technical Support: Assistance with shackle selection and mooring system design.
• Installation Guidance: Recommendations for compatible accessories such as Kenter shackles and swivels.
• Maintenance: Long-term inspection guidance for wear, corrosion, and replacement intervals.
• Sample & Testing: Available to validate fit and performance before large-scale deployment.

Packaging & Delivery

• Protective Coating: Black bitumen or hot-dip galvanizing to prevent oxidation during transport and storage.
• Global Shipping: Leveraging proximity to Ningbo-Zhoushan Port, we provide container, frame, or bulk shipping worldwide.

FAQ

• Q: Can the Joining Shackle be customized?
  A: Yes, OEM customization is available for diameter, load capacity, and surface treatment.
• Q: What is the difference between Joining Shackle and Kenter Shackle?
  A: Joining Shackles link chains and mooring components via a taper pin, whereas Kenter Shackles are two-part D-shaped connectors primarily for reversible chain link connections.
• Q: What is the expected service life?
  A: With proper maintenance, CSAC Chain Joining Shackles can last decades under standard marine conditions, supported by full quality assurance.