Cranes

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.

Industry: Industrial machinery

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Cranes

upper block

Industrial machinery; Cranes

A fixed assembly of sheaves, bearings, pins and frame, located on the trolley cross members, and which supports the load block and its load by means of the ropes.

classified hazardous locations

Industrial machinery; Cranes

A fire or explosion hazard may exist in these areas. Depending on the properties of the flammable liquids, gases, or vapors, or combustible fibers or dust that may be present and the probability that ...

non-coasting mechanical drive

Industrial machinery; Cranes

A drive with coasting characteristics such that it will stop the motion within a distance in feet equal to 10 percent of the rated speed in feet per minute when traveling at rated speed with rated ...