The running electric hoist is a light and small lifting device composed of an electric motor, a transmission mechanism, and a sprocket.

It uses the chain as the lifting medium to achieve vertical or horizontal movement of the load. 

This type of electric hoist is usually installed on a small car that can move horizontally along the track, allowing for vertical and horizontal lifting operations, suitable for larger workplaces.

Electric hoists also include some special forms, such as low clearance type, double link chain type, and four hook type. 

The low clearance electric hoist installs the motor and gearbox on the same side, reducing the hook size and increasing the clearance height, making it suitable for lower workplaces. 

The double chain electric hoist installs two electric chain hoists on the same trolley, using two mechanical synchronous chains to achieve lifting operations on long objects or beams. 

The four hook electric hoist installs four electric chain hoists on the same trolley, which can achieve lifting operation for wide and flat loads.

In short, the running electric hoist is a powerful light and small lifting device suitable for various workplaces and different types of load lifting operations