The JIS F2031 Pawl Type Chain Cable Stopper is a marine anchoring device designed in accordance with JIS F2031 standards. It is used to secure the anchor chain (chain cable) and to transfer the load from the windlass to the ship’s hull structure during anchoring and navigation.
JIS F2031 Pawl Type Chain Cable Stopper
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Key Features
- Type: Pawl Type Chain Cable Stopper
- Standard: JIS F2031
- Material: Cast steel (high strength and wear-resistant)
- Chain Size: Typically Ø19–76 mm (Grade 2 / Grade 3)
- Load Capacity: Up to 80% of chain Minimum Breaking Load (MBL)
- Mechanism: Pawl locking system
- Surface Treatment: Epoxy primer, hot-dip galvanizing, or bitumen coating
- Certification: ABS, LR, BV, CCS, NK
- Operation: Semi-automatic (self-locking pawl with manual release)
Function & Application
- Secures anchor chain during vessel operation
- Prevents backward movement of the chain
- Transfers chain tension from windlass to hull structure
- Enhances safety during anchoring and mooring
Applications:
- Cargo vessels
- Bulk carriers
- Tankers
- Fishing vessels
- General marine anchoring systems
Design Characteristics
- Pawl mechanism provides automatic locking function
- Allows smoother operation compared to fixed bar types
- Simple structure with reliable performance
- Compact design suitable for small to medium chain sizes
- Durable construction for long-term marine use
