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SANY GJ-1 Limit Switch (Fits All SANY Hoisting Equipment Series)
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.
Description
Tags
| Item | Specification |
| Model | GJ-1 |
| Rated Working Voltage | AC 220V / 380V Dual Gear Compatible |
| Rated Working Current | 5A |
| Trigger Tension Range | 15~25N |
| Protection Level | IP65 |
| Operating Temperature Range | -40℃ ~ +85℃ |
| Shell Material | Zinc Alloy Die-Casting + Spray Coating |
| Installation Method | Bracket Fixed Type |
| Wiring Method | Three-Core Cable (Length Customizable) |
| Applicable Equipment | All SANY Cranes, Crawler Cranes, Truck Cranes |
- Installation Positioning: Fix the switch on the rigid structure near the head of the jib or drum through the matching bracket, ensuring that the relative position between the trigger ring and the hook meets the requirements of the equipment manual.
- Steel Wire Rope Connection: Fix one end of the matching steel wire rope to the lifting lug of the hook block, and connect the other end to the trigger ring of the switch. Adjust the tightness of the steel wire rope so that it triggers the switch exactly when the hook rises to the limit position.
- Electrical Wiring: Connect the switch cable to the lifting control circuit of the equipment to ensure that the power can be effectively cut off when triggered.
- Function Test: After installation, run the equipment with no load to verify whether the switch can be reliably triggered and cut off the power when the hook rises to the limit position. Sensitivity calibration is recommended every 3 months.
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