Tongue-Type Chain Stopper

A mechanical tongue‑type chain stopper that locks a mooring or anchor chain (46–87 mm) by inserting a steel tongue into a matching slot, preventing chain movement under load. As a Chain Stopper, it is normally installed on the forecastle, poop deck or offshore working deck aligned with the vessel's chain, mooring or towing leads. In that role, its primary purpose is to heave, veer, hold or control chain, rope or wire according to the listed duty. Windlasses, mooring winches, towing winches and capstans differ in line handling and operating duty, but all require dependable brakes, drives and foundations. Capacity: For chain 46-87mm. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.