The role of the weights in the elevator is to balance the car. Both the car and the counterweight frame are connected by a traction rope. The traction rope is driven by the friction between the traction wheel on the roof and the traction rope to drive the car Move up and down. The role of counterweight is to balance the weight of the car. This traction wheel only needs to drive the difference between the weight of the car and the counterweight to move the car up and down. The general material is cast iron, but the weight of each block is not easy to control (low cost), and some are cast steel.

Bed Elevator manufacturer introduces the physical meaning of the balance coefficient of the elevator: for traction elevators, the counterweight should not be too heavy or too light, and it should be commensurate with the weight of the side of the car for passengers and loads. That is, the balance coefficient of the elevator should be between 0.4-0.5 according to the regulations, that is, the weight of the counterweight should be balanced with the weight of the car and 0.4-0.5 times the rated load of the elevator.