QGX series hoist height limiter has the characteristics of light weight, small size, convenient installation and debugging, high sensitivity, high reliability and long service life. It can limit the ascent and descent, and can be exchanged with the old screw structure height limiter. This product is suitable for various types of cranes, elevators, lifting stages, bowling halls and other displacement mechanical equipment, and can effectively prevent bumping, derailment and falling accidents.
The QGX series lifting height limiter is a compact, lightweight device with high sensitivity and reliability, designed to limit upward and downward motion of cranes, elevators, stage lifts and similar equipment. It can replace older screw‑type limiters and provides four adjustable limit switches for safety protection.
The device operates by a turbine shaft driving a cam; when the cam reaches a preset position it contacts a limit switch, cutting power to stop motion. The manual details the working principle, environmental specifications, adjustment procedures, installation dimensions, and maintenance guidelines. This manual is written in Chinese.
| Operating temperature range | -35°C to +60°C |
|---|---|
| Limit switch rated voltage | AC 380 V |
| Limit switch rated current | 10 A |
| Number of adjustable limit switches | 4 |
| Rated lifting height (effective winding circles) – QGX-HA | 0–40 circles |
| Rated lifting height (effective winding circles) – QGX-HB | 0–80 circles |
| Rated lifting height (effective winding circles) – QGX-HC | 0–120 circles |
A turbine shaft drives a cam; when the cam reaches the preset position it contacts a limit switch, which cuts the power to stop upward or downward movement.
The device can operate from –35 °C up to +60 °C.