Chain Hoist

A hoist is a device that excels at carrying out a specific task: raising and lowering a load on a vertical axis. Hoists are positioned atop the crane’s main horizontal beam, also known as the bridge girder. When the trolley is attached to the hoist, the hoist can move back and forth across the bridge girder. Wire rope hoists are the best option for loads of 5 tonnes or more, while chain hoists are good for lifting loads below 5 tonnes with little maintenance required. A single rope is used on the rope drum in single-reeved hoists, while two ropes are used on a single drum in double-reeved hoists to achieve real vertical lift. On a single-reeved hoist, little hook drift or lateral movement of the hook can be accomplished with bigger diameter rope drums.