The Ulster Type Chain Stopper is a versatile tool which is designed for multiple applications such as engaging and securing anchor chain, assisting in the stowing of the ship’s anchor and accepting the high loads associated with mooring commercial ships, drill ships, semi-submersibles and service vessels.
To prevent the chain from running out during anchor retrieval, the pawl of the stopper should be placed inboard. Also, the stopper should be secured to the deck with bolts or by welding. The stoppers are manufactured from high quality cast steel. The pawl is secured with an alloy heat treated hinge pin. Depending on the customer’s requirements, the stopper can be equipped with a pawl counterbalance or powered cylinders.