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Cranes

A crane is a type of machinery used for lifting and moving heavy materials in construction, transportation (loading and unloading merchandise) and other fields. Most cranes are equipped with a hoist, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them around.

Contributors in Cranes

Cranes

hook suspended

Industrial machinery; Cranes

Suspension of hoist from a trolley or rigid structure by means of a hook(s) at top of hoist.

truck

Industrial machinery; Cranes

Supporting the sill of a gantry crane, the bridge girders, or the end ties of an overhead crane, this unit consists of wheels, a frame, axles, and bearings.

load

Industrial machinery; Cranes

Superimposed weight on the hook or load block at its total.

structural supports

Industrial machinery; Cranes

Structural members provided for the support of runways or monorail track and switches.

hanger rod

Industrial machinery; Cranes

Steel rods which, together with other fittings, are used to suspend the track from the supporting structure.

lift cycle

Industrial machinery; Cranes

Single lifting and lowering motion (with or without load)

gantry crane

Industrial machinery; Cranes

Similar to an overhead crane, except that the bridge for carrying the trolley or trolleys is rigidly supported on two or more legs running on fixed rolls or other runway. A gantry crane has a hoist ...

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