The spring balancer uses the power of the spring to allow workers to move tools or hang objects up and down with minimal effort, without the need for power or air, which can reduce operator fatigue Can be used where hand tools and lifting equipment are used, and can also be used as an auxiliary tool for lifting tools Features: 1. The self-locking balancer has a self-locking control system, which can be retracted automatically and is easy to use 2. Small size, saving factory space and reducing production costs 3. Pneumatic, electric and hydraulic tools are easy to operate 4. No electrical or pneumatic risk, safe and reliable to use 5. Easy and fast installation parameter: Name: Spring Balancer Material: Alloy steel Capacity range: 30-40kg / 40-50kg / 50-60kg / 60-70kg /70-80kg Length: 150cm prompt: 1 Choose a suitable balancer according to the weight of the tools and accessories 2 When hanging the balancer, be sure to connect a safety rope 3 The balancer should be checked once a month 4 When the balancer is not hooked with tools, please do not remove it for no reason, so as to prevent the wire rope from getting stuck in the wrong groove or falling out of the groove Package content: 1 spring balancer + a set of accessories + 1 x wrench