“Elevators” are divided into traction elevators and hydraulic elevators. The most popular in the market is the elevator that traction during the operation of the elevator. The length of the wire ropes on the side of the vehicle and on the counterweight is always active, thereby causing a change in the weight of the wire ropes on both sides of the towing hoist. When the car is down to the lowest The weight of the wire rope is mainly applied to the car side. When the car that flies the highest The weight of the wire rope is mainly used on the counterweight. This type of change is effective when the elevator is too high, it affects the stability of the elevator operation. and endanger the safety of passengers.  For this reason, when the lift is too high, it is necessary to set up the components. There is a balance weight, weight change due to height change. This is an elevator balance compensation chain. Therefore, the compensation balance elevator chain is defined as a component for vehicle weight and balance.