Crane

A machine for raising, shifting, and lowering heavy weights by means of a projecting swinging arm or with the hoisting apparatus supported on an overhead track.

Purpose

Cranes are used to lift, move, and lower heavy materials and equipment in construction, manufacturing, shipping, and other industries. They are vital for tasks that require the handling of loads too heavy for manual labor.

Examples of Use

1. Using a tower crane to lift construction materials to various floors of a high-rise building.
2. Employing an overhead crane in a factory to move heavy machinery components across the production area.
3. Operating a mobile crane at a port to load and unload shipping containers from cargo ships.

Related Terms

• Boom: The projecting arm of a crane, used to support the load.
• Hoist: The mechanism on a crane used for lifting and lowering loads.
• Rigging: The process of preparing and securing loads to be lifted by a crane.

Notes

Cranes come in various types, including tower cranes, mobile cranes, and overhead cranes, each designed for specific applications. Safety and proper operation are paramount in crane use to prevent accidents and equipment damage.