| Product Description :
||In case that a cable installed in a Spring balancer is cut or a suspended tool is disengaged. A cable will snap back due to the tension of spring involved in a Spring balancer, causing the dangerous situation such as the injury to personnel etc. This new device has developed to protect personnel from such the danger.As soon as a cable is cut, a drum revolves rapidly winding a cable up. Rapid revolution of the drum generates centrifugal force. The centrifugal force makes a Ratchet on a spring case pushed out and the ratchet sticks in a wheel fixed on a cover, stopping the revolution of the drum.