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

US$999,999,999.00

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

GB T178-96 Spiral Type Chain Stopper

Product Info