IMPROVE EFFICIENCY: The product reduces personnel fatigue and increases work efficiency. At the same time, the balancer can save factory space and reduce production costs STRONG AND SAFE BEARING: The spring balancer prevents tool damage, has a high load capacity, the spring balancer has no electrical or pneumatic hazards, and is safe and reliable to use FOR ASSEMBLY LINE: Used for single and continuous work. Used by the personnel who perform various jobs on the assembly line. Small and simple, does not take up space, can adjust the tension Multi-function: Easy to use pneumatic, electric and hydraulic tools. Used for hanging, gathering, transporting and removing tools, jigs, fixtures, rolling stock, brackets, etc. WITH SAFETY DEVICE: This product can be used to manually lock the suspended object with a safety device. If the suspended object is overweight and the spiral spring is broken, can be locked immediately to prevent the suspended object from falling