Mooring Chain for Deepwater Floating Offshore Wind Platforms
CSAC manufactures high-strength mooring chains for deepwater floating offshore wind platforms, floating wind turbines and offshore renewable energy projects.
Floating offshore wind platforms operate in demanding marine environments where mooring systems must withstand continuous wind, wave and current loads throughout the design life of the project.
Our mooring chains can be manufactured according to project-specific requirements, including chain grade, diameter, length, accessories, testing and classification certification.
R3 Mooring Chain
High-strength mooring chain for applicable offshore and marine mooring systems.
R3S Mooring Chain
Enhanced mooring chain specification for demanding offshore applications.
R4 Mooring Chain
High-strength mooring chain for demanding offshore mooring applications.
R4S Mooring Chain
Enhanced-strength mooring chain for projects requiring higher mechanical and fatigue performance.
R5 Mooring Chain
Very high-strength mooring chain for specific offshore applications and engineering requirements.

Mooring Chain Specifications
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| Product | Deepwater Mooring Chain |
| Application | Floating Offshore Wind |
| Chain Type | Stud Link Mooring Chain |
| Grade | R3 / R3S / R4 / R4S / R5* |
| Diameter | Project-specific |
| Material | High-strength marine steel |
| Surface Treatment | Black Painted / Project-specific |
| Length | According to project |
| Testing | Proof Load / Breaking Load* |
| Certification | According to project |
| Accessories | Shackles / Swivels / End Links |
| Application | Deepwater Floating Wind |
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Why Choose CSAC?
Marine Chain Manufacturing Expertise
CSAC specializes in:
- Anchor Chain
- Mooring Chain
- Marine Anchor
- Chain Accessories
- Offshore Mooring Components
Our products are designed and manufactured for marine, shipbuilding and offshore engineering applications.
One-Stop Supply
Customers can source:
Mooring Chain + Anchor Chain + Anchor + Shackles + Swivels + Connecting Components
Quality Control & Testing
Each production order can be inspected according to applicable standards and project specifications.
Inspection may include:
- Raw material inspection
- Chemical composition
- Mechanical properties
- Welding inspection
- Heat treatment
- Proof load testing
- Breaking load testing
- Dimensional inspection
- Surface inspection
- Coating inspection
- Final inspection
Classification & Certification
- DNV
- ABS
- LR
- BV
- CCS
- RINA
- KR
- NK
- Certification is subject to the specific chain grade, diameter, project specification and classification requirements.

Customers We Serve
Offshore Wind Developers
- Floating offshore wind farm developers and renewable energy companies.
EPC Contractors
- Engineering, procurement and construction contractors.
Mooring System Integrators
- Companies responsible for floating platform mooring system design and integration.
Offshore Engineering Companies
- Deepwater offshore engineering and marine construction companies.
Shipyards
- Shipyards and offshore platform construction facilities.
Marine Equipment Suppliers
- Marine and offshore equipment distributors and stockists.
FAQ
What is mooring chain used for in floating offshore wind?
- Mooring chain is an important load-bearing component of the mooring system used to maintain the position of a floating offshore wind platform.
Can mooring chain be used in deepwater offshore wind projects?
- Yes. The appropriate chain grade, diameter and configuration must be determined according to the approved mooring system design and project requirements.
What grades of mooring chain are available?
- Depending on the project, offshore mooring chains may include R3, R3S, R4, R4S and R5 grades.
Can you supply black painted mooring chain?
- Yes, subject to the required coating specification and project requirements.
Can you manufacture customized mooring chain?
- Yes. Chain diameter, grade, length, accessories and inspection requirements can be specified according to the project.
Can you provide mooring chain accessories?
- Yes. Related components may include Kenter Shackles, joining shackles, end links, swivels and other connecting components.
Can you provide classification certification?
- Certification can be arranged according to the specific product and applicable project or classification requirements.