High Torque Mining Winchs
Mine types: Covers coal mines (needs explosion‑proof certification), metal mines (ferrous and non‑ferrous), and non‑metal mines.
Operating environment: Works both underground (including high‑gas and dust explosion risk areas) and on the surface. Resists dust, water, and explosion hazards.
Mine types: Covers coal mines (needs explosion‑proof certification), metal mines (ferrous and non‑ferrous), and non‑metal mines.
Typical jobs:
- Hauling: Moving mine cars, repositioning equipment, transporting roof support materials.
- Hoisting: Lifting personnel in vertical/inclined shafts, hoisting ore, lowering tunneling gear.
- Transport: Moving materials along horizontal tunnels, heavy towing on ramps.
- Mounting spots: Shaft top / pit bottom, inclined shaft hoist rooms, tunnel chambers, fixed work platforms at surface mines.
Base load‑bearing structure: One‑piece welded high‑strength frame, box‑beam design.
Core functional units:
- Drum system: Multi‑layer winding drum (with rope guide), rope anchor.
- Drive system: Reducer (planetary / helical gear), coupling, drive shaft.
- Brake system: Disc or shoe brake, hydraulic / pneumatic power unit.
- Power system: Explosion‑proof or standard motor, control cabinet.
- Safety system: Overwind protection, slack rope protection, load sensor.
Motor drive:
Squirrel‑cage induction motor – flameproof type for underground use. Supports VFD speed control.
Reduction & braking:
Reduction: Hardened gear reducer turns high speed low torque into low speed high torque.
Braking: Two systems – service brake (normal stop) and emergency brake (panic stop). Hydraulic/pneumatic servo control.
Load control:
Closed‑loop system monitors rope tension in real time.
Constant‑speed hoisting / constant torque output.
Automatically detects load weight and adjusts operating parameters.
Key Technical Specs (Typical Configuration)
| Parameter | Typical Range |
|---|---|
| Rated Load | 5–100 t (custom up to 200 t) |
| Rope Speed | 0.5–3.5 m/s (VFD adjustable) |
| Drum Capacity | 100–1000 m (customized by shaft depth) |
| Motor Power | 37–500 kW |
| Power Supply | 380V / 660V / 1140V three-phase AC |
| Working Slope | 0–45° (inclined shaft) / 90° (vertical shaft) |
Safety & Mining Compliance
Explosion‑proof design: Flameproof motor, intrinsically safe control system – meets coal mine safety regulations.
Safety protections:
- Emergency brake: Automatically engages within ≤0.2 s on power loss.
- Overload protection: Stops automatically when load exceeds rated by 15%.
- Overwind protection: Mechanical + electronic dual limit.
Main structure: Q355B high‑strength steel, welded and stress‑relieved by annealing.
Wear parts:
- Drum surface induction hardened – hardness ≥HRC45.
- Wire rope galvanized or plastic‑coated – breaking force ≥1.5× rated load.
- Gear surfaces carburized and hardened – hardness ≥HRC58.
- Environmental protection: IP55, works from -20°C to +40°C, 95% humidity.
Installation, Operation & Maintenance
Installation requirements:
Must be mounted on a poured concrete foundation – levelness error ≤0.1‰.
Coaxiality between shaft center and drum center ≤0.5 mm.
Operation features:
Three modes: manual, automatic, remote.
Visual HMI with fault diagnosis display.
Routine maintenance:
Change reducer oil every 6 months.
Replace brake shoes when wear exceeds 1/3 of thickness.
Lubricate wire rope monthly; check wear regularly.
Customization & Selection Support
Load rating:
From 5 t to 200 t based on actual lifting weight.
01
Rope length:
Drum capacity customized by shaft depth.
02
Control options:
Standard electric, PLC‑based, or VFD control.
03
Voltage options:
380V, 660V, 1140V, 3300V.
04
Special customizing:
Corrosion‑resistant (coastal mines), high‑temperature (geothermal mines) versions available.
05
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