Ore Extraction Mining Winch
Surface: Fits open‑pit coal and metal mines – at the working face and crusher stations. Corrosion‑resistant and sandstorm‑resistant – tolerates temperature swings, rain, snow, etc.
Application Scenarios & Working Conditions
A dedicated lifting machine for ore extraction. Focuses on moving ore vertically or horizontally. Fits many tough mine conditions.
Operating environment
Underground: Works in vertical shafts, inclined shafts, and tunnels of coal and metal mines. Explosion‑proof, dust‑proof, moisture‑proof design – handles high gas, high humidity, heavy dust.
Surface: Fits open‑pit coal and metal mines – at the working face and crusher stations. Corrosion‑resistant and sandstorm‑resistant – tolerates temperature swings, rain, snow, etc.
Mine types
Coal mines: For loose coal – drum rope guide and load control are optimized. Some explosion‑proof models meet high‑gas mine safety requirements.
Metal mines: For hard rock ore like iron, copper, gold – heavy lifting needs. Stronger structure and better wear parts.
Typical jobs
Hauling: Dragging mine cars and tunneling gear in underground tunnels; moving blasted ore at surface mines.
Hoisting: Lifting ore from underground to surface via vertical shafts; delivering ore to storage bins via inclined shafts.
Transport: Moving ore horizontally in underground cross‑entries or at surface mines, using rail systems.
Mounting spots
Underground: Usually at the pit bottom, at tunnel entrances to the mining area, or in a dedicated winch chamber – close to the working face to shorten transport distance.
Surface: Placed at the edge of the pit or near the crusher feed – fixed on a concrete foundation or a mobile platform.
Structure & Key Components
Heavy‑duty modular design. Core parts are built for high strength and wear resistance – for moving ore.
| Component | Description |
|---|---|
| Heavy-Duty Drum Unit | One-piece forged high-strength alloy steel, hard-faced with wear-resistant alloy. Fits heavy ore transport. With auto rope guide. |
| Power Drive System | High-power asynchronous motor or VFD motor + hardened planetary gear reducer – gives high torque. |
| Safety Brake System | Hydraulic disc brake + electromagnetic fail-safe brake. Two-stage braking – safe stopping under heavy loads. |
| Smart Control System | PLC cabinet – load monitoring, travel control, fault warning. Supports manual, automatic, and remote control. |
| Auxiliary Devices | Rope tension sensor, depth indicator, overwind / overrun protection, centralized lubrication. |
How It Works & Operating Logic
Motor drive
Standard jobs: squirrel‑cage asynchronous motor. Heavy loads or precise speed control: VFD motor.
Underground explosion‑proof: flameproof motor – meets coal mine safety rules.
Reduction & braking
Reduction: Planetary gear reducer turns high speed low torque into low speed high torque – efficiency ≥92%.
Braking: Hydraulic brake for normal stops. Emergency triggers the safety brake – deceleration 3‑5 m/s² – avoids equipment damage or ore spillage under heavy loads.
Load control
Real‑time monitoring of rope tension and load. PLC automatically adjusts motor power – constant torque hoisting.
Works with depth indicator for precise positioning – automatically controls acceleration/deceleration – prevents ore spillage.
Key Technical Specs
| Parameter | Typical Range | Notes |
|---|---|---|
| Rated Load | 10–1000 kN (1–100 t) | Graded by mining class; hard rock models >200 t |
| Rope Speed | 1–8 m/s | VFD gives 0.5–10 m/s stepless |
| Drum Capacity | 100–2000 m of rope | Custom by shaft depth / transport distance; single/multi-layer winding |
| Motor Power | 30–1000 kW | Matches load/speed; flameproof needs certification |
| Power Supply | 380V / 660V / 1140V / 3300V | Underground: 660V / 1140V flameproof; surface: up to 3300V |
| Working Slope | 0° (horizontal) to 45° (inclined) | Steep slope models have anti-slip brake |
Safety & Mining Compliance
Ore extraction winches must strictly follow mining safety standards – heavy‑load features are reinforced.
Explosion‑proof design:
Coal mine models meet GB 3836.1 – flameproof motor, intrinsically safe control system.
01
Emergency braking:
Two‑stage brake – automatically engages within 0.2 s on power loss – braking distance ≤1 m.
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 – certified with national mining safety label (MA).
04
Materials, Durability & IP Rating
High‑strength steel:
Frame welded from Q355B thick plate. Drum forged from 45# steel – tensile strength ≥700 MPa.
Wear parts:
Drum hard‑faced with carbide alloy – hardness ≥HRC55. Wire rope galvanized and plastic‑coated – 30% better wear resistance.
Industrial rating:
IP55 – works in -20°C to 40°C, 95% humidity underground. Surface models have anti‑corrosion coating.
Installation requirements
Underground: Fix on a strong concrete foundation – levelness error ≤0.1‰. Leave room for ventilation and maintenance.
Surface: Fixed base or mobile platform. Add wind, rain, and corrosion protection.
Operation features
Visual control panel – start/stop, speed control, emergency brake. Supports local / remote mode switching.
HMI shows lifting height, load, speed, etc. Automatic fault diagnosis with solutions.
Routine maintenance
Daily: Check brake shoe wear, rope tension, lubrication.
Weekly: Measure temperature and vibration of reducer and motor – check bolts.
Monthly: Calibrate depth indicator and overload protection. Change reducer oil every six months. Full disassembly and inspection once a year.
Customization & Selection Support
Load rating:
Custom from 10 kN to 1000 kN (1–100 t) based on ore weight and transport distance.
Rope length:
From 100 m to 2000 m – fits different shaft depths and distances.
Control options:
Standard PLC, VFD control, remote monitoring – multiple schemes.
Voltage options:
380V, 660V, 1140V, 3300V – fits different power supplies.
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