A crane has a lifting machine, usually with a winder (also known as a wire rope drum), wire ropes or chains and sheaves that are used both to lift and lower materials and to move them horizontally. There used to create one or more simple machines mechanical advantage and thus move loads beyond the normal capabilities of a human being.

Cranes are usually in the transport industry for the loading and unloading of cargo, in the construction industry for the movement of materials and manufacturing industries for the installation of heavy equipment.An bridge crane is a type of crane, where the hook and online mechanism runs along a horizontal bar that runs at two widely separated rails. Often it is in a long factory building and runs on rails along the building's two long walls. It is similar to a gantry crane.

Overhead cranes typically consist of a hoist to the elements, the bridge that spans the area covered by the crane, and a trolley lift along the common use of overhead bridge crane is to move in the steel industry. A crane is made of steel at each step, until he finished a factory as a product of the steel sheets. Raw materials into a furnace to be poured with a crane, steel, hot to cool stored by an overhead crane, the finished coil is lifted and loaded onto trucks and trains of the crane and the processors or stamp used a crane to the steel handle his factory.

The automotive industry uses cranes for handling raw materials. Smaller workstation cranes handle lighter loads in a work area, such as CNC mill or saw.There are two types of cranes, cab and trailer operated by remote control.

During operation of the two types is different, many crane operators working either type. In a taxi operating overhead crane, the operator sits in a cab on the crane. He moves like the crane moves. For a pendant / remote controlled crane, the operator remains on the ground and controls the crane by remote control via a cable attached to the crane.