Product application scope The JK and 2JK series single-rope winding type mine hoists are mainly use
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When the main motor is started, the power is transmitted from the rotor of the motor to the high-spe
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The JKMD mining hoist is a friction-type (multi-rope) mine hoist used for deep shaft lifting in coal
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When the main motor is started, the power is transmitted from the motor rotor to the high-speed shaf
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JKM multi-rope friction hoist adopts a tower-mounted structure with an integrated design inside the tower. It is applicable to coal mines, metal mines, and non-metal mines, meeting the requirements for efficient hoisting of materials, personnel, and equipment. Widely used in surface industrial yards, tower-type and floor-mounted large vertical shaft scenarios, it enables reliable hoisting of ores, equipment, and personnel.
Structure Features & Working Principle:
High-performance core equipment for large-scale deep-shaft mines. Based on flexible body friction transmission, it achieves collaborative load-bearing through multiple wire ropes, breaking limits of traditional single-rope drum hoists in lifting height and load capacity. Key equipment for mines with annual output exceeding 4 million tons.
Offers two installation configurations:
○Tower-mounted type: compact structure, high stability, suitable for new large-scale mines with limited surface space.
○Floor-mounted type: eliminates need for headframe, short construction period, low cost, easy maintenance, ideal for renovation and expansion projects.
As an integrated complex system of mechanical, hydraulic and electrical components, it is mainly composed of six core parts:
1. The main shaft assembly serves as power execution unit;
2. The drive system offers optional solutions: "variable frequency motor + gear reducer" or the more advanced "low-speed motor direct drive";
3. The braking system uses rear-cylinder disc brakes combined with a constant deceleration hydraulic power station to provide dual safety guarantees;
4. The sheave deflector wheel assembly adopts eccentric design polymer liners to reduce wear;
5. The electrical control system integrates intelligent control functions such as digital speed regulation, PLC control, automatic zero adjustment and online monitoring;
6. Auxiliary devices, rope groove turning device, ensure uniform tension of the steel wire ropes.
| JKM Tower-mounted Multi-rope Friction Hoist | ||||||||||||
| Model | Dia | Number wire ropes | Friction coefficient | Max static tension |
Max static tension difference |
Dia | Spacing | Max. Lifting Speed |
Dia guide wheel |
|||
|
With guide sheaves |
With out guide sheaves |
With reducer | With out reducer | |||||||||
| With guide sheaves |
Without guide sheaves |
|||||||||||
| m | Rope(s) | KN | mm | m/s | m | |||||||
| JKM-1.3×4 | 1.30 | 4 | 0.25 | / | 150 | 40 | / | ― | 200 | 5.0 | / | / |
| JKM-1.6×4 | 1.60 | / | 165 | 50 | / | 16 | 8.0 | |||||
| JKM-1.85×4 | 1.85 | 180 | 200 | 55/60 | 20 | 20 | 10.0 | 16.0 | 1.85 | |||
| JKM-2×4 | 2.00 | 215 | / | 65 | 22 | 22 | 2.00 | |||||
| JKM-2.25×4 | 2.25 | 280 | 80 | 24 | / | 2.25 | ||||||
| JKM-2.8×4 | 2.80 | 4 | 420 | 120 | 30 | 250 | 15.0 | 2.80 | ||||
| JKM-2.8×6 | 6 | 620 | 180 | |||||||||
| JKM-3×4 | 3.00 | 4 | 480 | 140 | 32 | 300 | 3.00 | |||||
| JKM-3×6 | 6 | 740 | 220 | |||||||||
| JKM-3.25×4 | 3.25 | 4 | 620 | 180 | 36 | 3.25 | ||||||
| JKM-3.5×4 | 3.50 | 4 | 700 | 200 | 38 | 3.50 | ||||||
| JKM-3.5×6 | 6 | 1050 | 300 | / | ||||||||
| JKM-4×4 | 4.00 | 4 | 950 | 270 | 44 | 18.0 | 4.00 | |||||
| JKM-4×6 | 6 | 1400 | 400 | |||||||||
| JKM-4.5×4 | 4.50 | 4 | 1200 | 350 | 50 | 4.50 | ||||||
| JKM-4.5×6 | 6 | 1750 | 500 | |||||||||
| JKM-5×4 | 5.00 | 4 | 1400 | 400 | 54 | 5.00 | ||||||
| JKM-5×6 | 6 | 2000 | 600 | |||||||||
| JKM-5×8 | 8 | 2550 | 700 | |||||||||
Note 1: Column max static tension difference steel wire rope, Serial No.3 and Model JKM‑1.85×4, numerator indicates guide wheel denominator indicates without guide wheel.
Note 2: Product specifications in this table are preferred.
Note 3: Refers actually selected steel wire rope diameter in millimeters (mm).
Note 4: During selection, anti‑slip calculation of system fails meet requirements, adjust whole hoisting system; if still unsatisfied, select one higher grade.
Note 5: Large multi‑rope friction hoists high installed power where single‑motor drive cannot meet service requirements, Type Ⅳ dual‑motor drive is preferred.
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