Hoists – Cross Travel
A device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps, Cranes and Hoists are somewhat interchangeable terminology since the actual lifting mechanism of a crane is commonly referred to as a hoist. Hoists may be integral to a crane or mounted in affixed position, permanently or temporarily, when a hoist is mounted to a trolley on a fixed monorail, two directions of load motion are available: forward or reverse, up or down, When the hoist is mounted on a crane, three directions of load motions are available: right or left, forward or reverse, up or down.
- Hoist: The hoist mechanism is a unit consisting of a motor drive, coupling, brakes, gearing, drum, ropes, and load block designed to raise, hold and lower the maximum rated load, Hoist mechanism is mounted to the trolley
- Trolley: The unit carrying the hoisting mechanism which travels on the bridge rails in a direction at right angles to the crane runway, Trolley frame is the basic structure of the trolley on which are mounted the hoisting and traversing mechanisms