The spring balancer is mainly composed of a casing, a spring coiling device, a steel wire rope or chain, and hooks, etc. The shell serves to protect the internal mechanism and provide installation support. The spring coiling device is the core component, consisting of a high-strength spring and a reel connected to it. One end of the spring is fixed to the shaft inside the housing, and the other end is connected to the reel. Steel wire ropes or chains are wound around the drum, with one end fastened to the drum and the other end connected to a hook, which is used to suspend heavy objects to be balanced.
