1-3kg/3-5kg/5-9kg Spring Balancer, Spring Balancer Retractable with Safety Buckle, Bearing Retractable Tool Fixture Holder for Factories and Workshops(Size:5-9kg)

【Working principle】This spring balancer uses the energy accumulated in the coil spring to keep the suspended working tool in a weightless state. The labor intensity of the operation work is greatly reduced, and the labor production efficiency is improved. 【High Quality Material】This spring balancer is made of high quality steel, which is very durable and stable. What's more, it is corrosion-resistant and rust-proof, suitable for long-time use. 【Adjustable Design】With a 1.5m long spring and adjustable tension, you can adjust the tightness and fix the rope at any height according to your needs, which can help workers save a lot of labor. 【High-quality material】 a) Alloy steel hook with safety buckle, not easy to fall off; b) Thickened rubber sleeve, can Effectively reduce the buffer force and prolong the service life; c) High-quality safety buckle with lock, safe and firm. 【Wide Application】Used to hang various tools, improve work efficiency and reduce worker fatigue. Spring balancers are used in automotive molds, parts welding, assembly lines and various fixed positions.