Lifting equipment classification

Lifting equipment can be divided into light and small lifting equipment, lifts, cranes and overhead monorail systems according to different structures.
1) Light and small lifting equipment mainly includes lifting pulleys, spreaders, jacks, manual hoists, electric hoists and ordinary winches. Most of them are small in size, light in weight and easy to use. Except for electric hoists and winches, most of them are driven by human power and are suitable for situations where the work is not heavy. They can be used alone, and some can also be used as the lifting mechanism of a crane. Some light and small lifting equipment have a large lifting capacity. For example, the lifting capacity of hydraulic jacks has reached 750 tons. Lifts mainly perform vertical or near-vertical lifting movements and have fixed lifting routes, including elevators, lifting platforms, mine hoists, and hopper lifts.
2) Crane. A crane is a multi-action lifting equipment that can lift vertically and carry heavy objects horizontally within a certain range. ① Bridge type cranes include bridge cranes, special cranes, gantry cranes, loading and unloading bridges, etc. ② Boom type cranes include truck cranes, tire cranes, crawler cranes, tower cranes, portal cranes, floating cranes and railway cranes.
3) An elevator is a lifting machinery in which heavy objects or objects are lifted and lowered along guide rails. It includes passenger or cargo elevators. Although the elevator has only one lifting action, the mechanism is very complex, especially the passenger lift-elevator, which requires complete safety devices and electronic control devices.