Mining Shaft Sinking Winches
Surface: For open‑pit mine shaft sinking. Dustproof, rainproof, corrosion‑resistant design – handles big temperature swings and sandstorms.
Application Scenarios & Working Conditions
A core machine for new shaft construction and shaft deepening. Designed specifically for shaft sinking work.
Operating environment
Underground: Works in vertical/inclined shaft sinking at coal and metal mines. Needs to handle high humidity, heavy dust, and tight spaces. Some explosion‑proof models can be used in low‑gas areas (check the rating).
Surface: For open‑pit mine shaft sinking. Dustproof, rainproof, corrosion‑resistant design – handles big temperature swings and sandstorms.
Mine types
Coal mines: Used for new shaft construction and deepening. Suspends sinking platforms, pumps, air ducts, etc. Explosion‑proof models must meet coal mine safety rules.
Metal mines: Fits vertical shaft sinking in non‑ferrous and ferrous metal mines. Stronger structure, better wear resistance – handles heavy loads and deep shafts.
Typical jobs
Hauling: Tensions the guide ropes during shaft sinking – keeps equipment stable.
Hoisting: Suspends sinking platforms, grab loaders, forms, grout pipes, etc. Lifts materials and personnel vertically.
Transport: Helps move roof support materials and spare parts needed for shaft sinking.
Mounting spots
Underground: Usually at the pit bottom, a chamber near the shaft, or the surface shaft top platform. Leave enough room for installation and operation.
Surface: Placed near the shaft top at open‑pit mines, fixed on a concrete foundation. Needs wind and rain protection.
Structure & Key Components
Modular winding design. All core parts are high‑strength and wear‑resistant.
| Component | Description |
|---|---|
| Main Shaft Drum Unit | Wraps wire rope; carries and transmits lifting load. High-strength steel, hard-faced with wear-resistant alloy. |
| Reduction Drive System | Globoidal worm gear reducer + one-stage gear – gives low speed, high torque. Supports fast/slow speed switching. |
| Brake System | Service brake (shoe type) + safety brake (disc or shoe) – dual brake protection. |
| Drive System | Asynchronous motor or VFD motor – provides power. Explosion-proof models need flameproof certification. |
| Auxiliary Devices | Depth indicator, overwind protection, lubrication system, rope guide. |
How It Works & Operating Logic
Motor drive
Standard jobs: asynchronous motor. Heavy loads or speed control needs: VFD motor.
Explosion‑proof models: flameproof motor – meets low‑gas underground safety requirements.
Reduction & braking
Reduction: Globoidal worm gear reducer lowers speed and increases torque – efficiency ≥85%. Fast/slow switching: fast for no‑load, slow for heavy load.
Braking: Service brake for normal stops. Emergency triggers the safety brake – dual brake protection. Braking distance ≤0.5 m.
Load control
Real‑time monitoring of rope tension and load. PLC automatically adjusts motor power.
Works with depth indicator for precise travel control – prevents overwind and overrun. Keeps suspended equipment stable.
Key Technical Specs
| Parameter | Typical Range | Notes |
|---|---|---|
| Rated Load | 10–500 kN (1–50 t) | Graded by shaft depth and load; heavy-duty >100 t |
| Rope Speed | 3–6 m/min (slow/fast) | Slow for heavy lifting, fast for no-load or light work |
| Drum Capacity | 50–2000 m of rope | Custom by shaft depth; single/multi-layer winding |
| Motor Power | 11–100 kW | Matches load and speed; flameproof needs certification |
| Power Supply | 380V / 660V / 1140V | Underground: 660V / 1140V flameproof |
| Working Slope | 90° (vertical) / 0–45° (inclined) | Add anti-slip for inclined shafts |
Safety & Mining Compliance
Shaft sinking winches must strictly follow mining safety standards.
Explosion‑proof design:
Coal mine explosion‑proof models meet GB 3836.1 – flameproof motor and control cabinet. Suitable for low‑gas underground.
01
Emergency braking:
Service brake + safety brake – automatically engages emergency brake on power loss. Deceleration ≤5 m/s².
02
Overload protection:
Built‑in load sensor – stops and alarms when load exceeds 110% of rated.
03
Applicable standards:
GB/T 20961‑2007, MT/T 771‑2011, and other industry standards.
04
Materials, Durability & IP Rating
High‑strength steel:
Drum forged from Q345B or 45# steel. Frame welded thick plate – tensile strength ≥600 MPa.
Wear parts:
Drum hard‑faced with wear‑resistant alloy. Wire rope galvanized or plastic‑coated. Brake shoes – high‑friction wear‑resistant material.
Industrial rating:
IP54 – works in -25°C to 40°C, 95% humidity underground. Some models have CE, ATEX.
Installation requirements
Must be fixed on a concrete foundation strong enough – levelness error ≤0.1‰.
Underground installation: leave space for ventilation and maintenance. For explosion‑proof models, interface with gas monitoring.
Operation features
Visual control panel – start/stop, speed control, emergency brake. Supports local / remote control.
HMI shows lifting height, load, speed, etc. Automatic fault diagnosis with alerts.
Routine maintenance
Daily: Check brake shoe wear, rope tension, lubrication.
Weekly: Measure temperature and vibration of reducer and motor.
Monthly: Calibrate depth indicator and overload protection. Change reducer oil every six months.
Customization & Selection Support
Load rating:
Custom from 10 kN to 500 kN (1–50 t) based on shaft depth and load.
Rope length:
From 50 m to 2000 m – fits different shaft depths.
Control options:
Standard PLC, VFD control, remote monitoring – multiple schemes.
Voltage options:
380V, 660V, 1140V – fits different power supplies.
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