An electric hoist crane is a type of lifting machinery that performs cyclic, intermittent motion. A single cycle involves a lifting mechanism lifting an object from a designated location, moving horizontally to lower the object, and then reversing to return the mechanism to its original position for the next cycle. Electric hoist cranes are classified into single-girder cranes, single-girder suspended cranes, double-girder cranes, wall-mounted cranes, jib cranes, gantry cranes, and push-door cranes.
Single-girder crane with electric hoistSingle-girder cranes with electric hoist utilize an electric hoist, end beam, trolley and carriage, drive electronics, and electronic control equipment. They can operate in and above rectangular spaces and are primarily used for loading and unloading goods in workshops, warehouses, and open-air storage yards. They can be classified as beam cranes, bridge cranes, gantry cranes, cable cranes, and transport bridges.
Single-girder suspension craneCantilever cranes are composed of a column and jib, with the jib pivoting around a fixed column on a base, or rigidly connected to a rotating column, allowing the jib to rotate within the base support relative to a vertical centerline. They are suitable for lifting small loads and operating within a circular or fan-shaped area. They are generally used for workpiece clamping and handling in machine tools and other applications.
Double-girder crane with electric hoistA double-girder bridge consists of two main beams and end beams. The main and end beams are rigidly connected, with wheels mounted at each end to support the bridge on an elevated structure. Tracks are welded to the main beam for the trolley to operate. There are many structural types for bridge main beams, with typical examples including box-type, four-girder, and Vierendeel girder structures.
Wall-mounted cranesWall-mounted cranes are used for single-sided work areas in large-span factories. Their running tracks are entirely above walls or columns, leaving no floor obstructions, allowing customers greater flexibility in workspace layout.