The GB T178-96 Spiral Type Chain Stopper is a marine anchoring device manufactured in accordance with the Chinese national standard GB/T 178-96. It is designed to secure the anchor chain and transfer the load from the windlass to the ship’s hull structure during anchoring and sailing operations.
GB T178-96 Spiral Type Chain Stopper
$999,999,999.00Price
Key Features
- Type: Spiral Type Chain Stopper
- Standard: GB/T 178-96
- Material: High-strength cast steel or fabricated steel
- Chain Diameter: Typically Ø19–76 mm (customizable)
- Chain Grade: Grade 2 / Grade 3
- Load Capacity: Up to 80% of chain Minimum Breaking Load (MBL)
- Structure: Spiral locking groove design
- Operation: Manual
- Surface Treatment: Epoxy primer, hot-dip galvanizing, or bitumen coating
- Certification: CCS, ABS, LR, BV, DNV (available upon request)
Function & Application
- Secures anchor chain during anchoring and navigation
- Transfers load from windlass to ship structure
- Prevents chain movement and accidental anchor release
- Provides stable holding through spiral engagement
Applications:
- Cargo vessels
- Fishing vessels
- Tugboats
- Inland and coastal ships
- General marine anchoring systems
Design Characteristics
- Spiral groove structure ensures strong and stable chain holding
- Reduces chain slippage under load
- Simple and durable construction
- Easy operation and low maintenance
- Suitable for medium-sized anchor chains
