Designed specifically for SANY and various types of lifting equipment, this is a core safety device to prevent hook overtravel and ensure construction safety.

This product is the original factory-matched height limiter (anti-overwinding switch) for SANY truck cranes, specifically designed for safe crane operations. When the hook rises to the preset height, the device automatically cuts off the hoist’s lifting circuit and triggers an audible-visual alarm, preventing safety accidents such as hook overtravel and wire rope breakage. It is an indispensable safety protection device for lifting operations.

The SANY GJ-1 Overwind Switch is a safety protection device specifically designed for hoisting machinery. By real-time monitoring the hook position, it quickly cuts off the lifting control circuit when the preset limit height is reached, fundamentally preventing accidents such as steel wire rope overwinding, breakage and hook overtopping. It provides reliable protection for equipment and personnel safety. This product is compatible with all series of SANY cranes, crawler cranes, truck cranes and port hoisting equipment, featuring high protection level and strong anti-interference capability to adapt to various complex working conditions.