Overhead crane overview

An overhead crane also known as bridge crane, overhead travelling crane, or industrial crane is a material handling machine which lifts, lowers, and transport a load horizontally. Typically, an overhead crane involves a hook-and-line mechanism that moves along a horizontal beam which moves on a runway beam, the supporting structure. Overhead crane manufacturer are heavy duty material handling equipment with high lifting capacities for transporting load. Overhead crane travel is directed by an operator, either manually or with a wired pendant station or wireless controls. Typically, overhead crane is used for the multi-directional movement of materials to help manufacturing, storing, loading or unloading works inside a facility or outside in a yard, or at a railway, or shipping port, and other application environments.

• Double girder overhead gantry crane parts assembly

• Semi -gantry crane parts assembly

• Manual overhead gantry crane parts assembly

• Single girder overhead crane parts assembly

• Double girder overhead crane parts assembly

• FEM overhead crane parts assembly

Overhead crane components

Generally, the overhead crane is consisted of three main parts, the crane bridge, the hoist or trolley, and the runway. The crane bridge is the part which traverses across the runway. The hoist or trolley is the lifting mechanism which traverses across the crane bridge and lifts vertically. The runway is tied to the building structure. Besides, there are other parts are involved, showing in the following diagram for your reference.

Double girder overhead crane componets drawing

Basic crane terminology

Crane capacity: The maximum weight the overhead crane is required to handle. Crane span: The horizontal distance between the rails of runway on which the crane travels. Lift or hook height:The distance from the floor to the crane hook, which determines the height of the runway from the floor and is subjected to the clear inside height of the building. Bridge, trolley and lift speeds: The rate at which the bridge or trolley runs or at which the hoist lifts. Dual speeds are available. Crane bridge: The main travelling structure of overhead crane which is consisted of two end trucks and one or two bridged girders varying with the type of the crane. End trucks: The end trucks is located on both sides of the span. The end trucks house the wheel