The core difference between an electric hoist and bridge crane is that an electric hoist is a standalone lifting component that must be mounted on a supporting structure such as a crane. Bridge crane is a complete lifting system that includes the electric hoist and is capable of three-dimensional movement.
Definition and Structural Differences
Electric Hoist.Definition: An independent lifting device that uses an electric motor to drive a chain or wire rope for vertical lifting.
Structure: It consists of a motor, drum, and braking system. It is lightweight (typically 0.1-100 tons) and compact, and must be fixed to a supporting structure such as an overhead crane or gantry crane.
Bridge Crane.
Definition: Commonly known as a bridge crane, it is a complete system consisting of a main girder, end beams, traveling mechanism, and hoisting mechanism.
Structure: It consists of a bridge (single or double girder), an electric hoist (as the hoisting mechanism), a trolley running mechanism, and a carriage running mechanism, capable of three-dimensional movement: horizontal, vertical, and vertical. Functional Features Comparison
Motion Dimensions.
Electric hoists can only lift vertically.
The bridge crane, using rails, enables horizontal movement (longitudinal for the trolley and transverse for the trolley) and vertical lifting for three-dimensional positioning.
Load Capacity.
The lifting range of a single electric hoist is 0.1-100 tons.
The bridge crane system can achieve lifting capacities in the 1,000-ton range through structural design.
Application Scenario Differentiation
Typical Applications of Electric Hoists.
Fixed-point lifting on production lines.
Vertical handling of goods in warehouses.
Partial lifting for equipment maintenance.
Application Areas of Bridge Crane Systems.
Lifting of entire equipment in automobile manufacturing workshops.
Container loading and unloading at ports.
Assembly of large components in shipyards.
