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SANY Crane Height Limiter (ZN101W)
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.
Description
Tags
| Parameter | Specification |
| Model | ZN101 / ZN101W |
| Applicable Models | SANY STC25 and other series truck cranes |
| Operating Voltage | DC 24V ±10% |
| Rated Current | 5A |
| Contact Type | Normally Open/Normally Closed Dual Contacts |
| Trigger Method | Wire Rope Pull Type |
| Wire Rope Stroke | 0–500mm (Adjustable) |
| Protection Rating | IP65 |
| Operating Temperature Range | -40℃ ~ +85℃ |
| Housing Material | Reinforced Nylon + Stainless Steel |
| Mounting Method | Flange Mounting |
Fine-tune the wire rope length to align the trigger position with the height required by the equipment safety operation regulations.
Test repeatedly 3–5 times to confirm stable and reliable triggering and resetting actions.
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