Types of Electric Hoists of Overhead Crane

Crane hoist is an very important part of overhead crane. Yuantai hoist is a kind of equipment that uses a rope or chain wrapped drum or hoisting wheel to lift or reduce the load. It is mainly divided into manual hoist, electric hoist, pneumatic hoist and hydraulic hoist, which can be used as lifting medium by chain, fiber or steel wire rope. Here, more information of hoist for you

Manual hoists--simple crane hoists

The manual hoist is driven by manpower, which is easy to operate, small in size and high in cost performance. The disadvantage is that it is low in efficiency and labor-intensive. Yuantai manual hoists are divided into chain hoists and lever hoists.

Chain hoist for lifting loads: when the chain hoist is used to lift a heavy object, the chain is pulled in a clockwise direction and runs with the help of the sprocket. When the heavy object is lowered, the chain is pulled in the opposite direction, and the brake seat and the brake pad are separated.

Lever hoist for lifting loads: when the lever hoist is used to pull the handle with the help of manpower, and through the principle of leverage, it alternately acts on the pliers body loaded in the movement to drive the heavy load.

Electric hoist-- labor-saving crane hoist

Electric hoist relies on the electric motor to operate, expands the torque through the reducer, pulls the steel wire rope or the chain to move the heavy objects. The lifting part is composed of two parallel drums, with a large lifting height and a large lifting weight. It adopts a cone rotor or a magnetic circuit motor. It has light weight, reliable braking and multiple structural forms. The electric hoist is very easy to use, which can lift large tonnage heavy objects. The shortcoming of electric hoist is that it is large in size, heavy in structure, and easy to burn when overloaded.

Pneumatic hoist--ideal explosion-proof hoisting equipment

The pneumatic hoist uses the pneumatic motor as the power source, and the chain or steel wire rope is used to lift the heavy objects through the deceleration mechanism.
Nowadays, pneumatic hoist is a perfect explosion-proof hoisting equipment It is easy to use, can be overloaded, has high positioning accuracy for lifting and lowering, safe and explosion-proof, and has a long service life. It is widely used in various special occasions, such as mines, oil fields, and chemical workshops. Etc.

The above is the introduction of the types of hoists for cranes today