Grade R4-R4S Stud Link Offshore Mooring Chain

CSAC Chain located in Zhoushan Archipelago New Area near Ningbo-Zhoushan Port, has over 30 years of experience in anchor chain production and offshore mooring solutions. Our Grade R4-R4S Stud Link Offshore Mooring Chain is widely used in FPSOs, semi-submersible platforms, MODUs, and floating renewable energy installations. The stud link design enhances stability, reduces deformation, and ensures even load distribution under extreme marine conditions.

Basic Product Information

• Brand: CSAC Chain
• Product: Grade R4-R4S Stud Link Offshore Mooring Chain
• Diameter Range: 34 mm – 142 mm
• Standard Chain Shot Length: 27.5 meters (custom lengths available)
• Surface Treatment: Black bitumen coating, hot-dip galvanizing, or raw sandblasted finish
• Application: Offshore mooring systems, FPSO units, semi-submersible rigs, floating wind turbines

Technical Specifications

The following table provides key specifications of the Grade R4-R4S Stud Link Offshore Mooring Chain. Custom dimensions and proof loads can be provided on request.

Key Features

1. Superior Offshore Performance

The Grade R4-R4S Stud Link Offshore Mooring Chain is designed to withstand high-tension loads, extreme currents, and harsh marine environments. The stud link construction improves alignment, reduces kinking, and enhances overall fatigue resistance.

2. High-Strength Material and Heat Treatment

Manufactured from high-tensile steel and heat-treated for toughness, these chains maintain structural integrity in deepwater and offshore conditions. The material choice provides corrosion resistance and long-term durability.

3. Precision Manufacturing

All chains are fabricated using automated flash-welding and strict ISO-compliant quality control to ensure uniformity in link dimensions and pitch. This guarantees smooth operation in mooring winches and windlasses.

4. Customization Options

We provide tailored chain sizes, proof loads, and surface treatments to meet specific offshore mooring project requirements. Optional coatings include hot-dip galvanizing or bitumen to suit different marine environments.

Applications

• Floating Production Storage and Offloading (FPSO) units
• Semi-submersible offshore rigs
• Mobile Offshore Drilling Units (MODUs)
• Floating wind turbine mooring systems
• Heavy offshore mooring and anchoring projects

Why Choose CSAC Chain?

Proven Offshore Reliability

Our Grade R4-R4S Stud Link Offshore Mooring Chain has been deployed on multiple international offshore projects, ensuring trusted performance under extreme marine conditions.

Global Certification Compliance

All chains comply with major classification societies: CCS, BV, DNV, ABS, NK, LR, RS, KR, and RINA, providing clients with verified quality assurance for safety-critical operations.

Advanced R&D and Patents

Zhoushan Zhongnan Anchor Chain collaborates with Jiangsu University of Science and Technology through the "Research Institute of High-Strength Marine Cable Intelligent Control Optimal Design," holding 17 domestic and international patents including Luxembourg patents for automatic chain stud production.

Comprehensive Offshore Support

We provide complete mooring solutions, including Kenter shackles, swivel shackles, anchors, and connectors, simplifying procurement and minimizing operational risks for offshore operators worldwide.

Frequently Asked Questions (FAQ)

Q: What is the main advantage of stud link chains over studless chains?

A: Stud link chains provide better stability, resist deformation under heavy loads, and prevent kinking in long mooring chains, making them ideal for deepwater offshore applications.

Q: Can CSAC Chain supply custom diameters and lengths?

A: Yes. We offer tailor-made specifications to meet unique project requirements, including custom diameters, proof loads, and chain shot lengths.

Q: What offshore projects use the Grade R4-R4S Stud Link Offshore Mooring Chain?

A: Our chains are used in FPSOs, semi-submersible rigs, MODUs, floating wind turbine mooring systems, and other heavy offshore mooring projects.

Q: Where is the CSAC Chain factory located?

A: Our factory is located in Zhoushan Archipelago New Area, Zhejiang Province, adjacent to Ningbo-Zhoushan Port, ensuring convenient logistics for global export.

Product Parameters