The JKMD mining hoist is a friction-type (multi-rope) mine hoist used for deep shaft lifting in coal, metal, and non-metal mines. It features large lifting capacity, high efficiency, and precise control, making it ideal for deep mining operations. Equipped with advanced electric drive systems and safety braking mechanisms, the JKMD hoist ensures smooth and reliable vertical transportation of minerals, personnel, and equipment.
1. No emission, No pollution.
2. Automatic cable retraction.
3. Automatic adjustment of cable retraction force.
The multi-rope friction hoist is mainly composed of a motor, a speed reducer, a friction wheel, a braking system, a depth indicator, a speed measurement and limiting system, and an operating system, and is driven by an alternating current (AC) or direct current (DC) motor. When a low-speed motor is used, the speed reducer can be omitted, and the motor is directly connected to the main shaft of the drum, or the rotor of the motor is installed at the end of the main shaft of the drum.
The braking system is an important device to ensure the safe operation of the hoist. In case of an emergency, the braking system should generate two-stage safety braking through a hydraulic system with adjustable braking torque to ensure that the hoist stops in a timely manner without excessive braking. For hoists driven by AC motors, the braking system should also have the performance of sensitive adjustable braking torque to accurately control the running speed of the hoist when it is approaching the stopping point.
The multi-rope friction hoist is divided into shaft tower type and surface type according to the installation form, and is mainly used for lifting materials, personnel and equipment in the vertical shafts of coal mines, metal mines and non-metal mines.
Since the electrical equipment supporting this product is of non-explosion-proof type, it cannot be used in places with flammable and explosive media such as gas.
The JKMD and JKM series products of multi-rope friction hoists are designed and manufactured in accordance with the standards of AQ1036-2007 Safety Inspection Specification for Multi-rope Friction Hoists Used in Coal Mines, Q/YX007-2021 Multi-rope Friction Hoists, and GB/T10599-2010 Multi-rope Friction Hoists, as well as the Coal Mine Safety Regulations, GB16423-2020 Safety Regulations for Metal and Non-metal Mines.
| model | Friction wheel diameter | Friction coefficient | Steel wire rope | Max. lifting speed | Head sheave diameter | ||||
| Max. static tension differential | Max. static tension differential | Max. diameter | Spacing | with reducer | without reducer | ||||
| m | kN | kN | mm | mm | m/s | m/s | m | ||
| JKMD-1.6x4P | 1.6 | 0.25 | 30 | 105 | 16 | 250 | 8 | 1.6 | |
| JKMD-1.85x4p | 1.85 | 45 | 155 | 20 | 10 | 16 | 1.85 | ||
| JKMD-2x4p | 2 | 55 | 180 | 22 | 2 | ||||
| JKMD-2.25x4p | 2.25 | 65 | 215 | 24 | 2.25 | ||||
| JKMD-2.6x4p | 2.6 | 90 | 300 | 28 | 300 | 15 | 2.6 | ||
| JKMD-2.8x4p | 2.8 | 100 | 335 | 30 | 2.8 | ||||
| JKMD-3x4p | 3 | 140 | 450 | 32 | 3 | ||||
| JKMD-3.25x4p | 3.25 | 160 | 520 | 36 | 3.25 | ||||
| JKMD-3.5x4p | 3.5 | 180 | 570 | 38 | 3.5 | ||||
| JKMD-4x4p | 4 | 270 | 770 | 44 | 350 | 4 | |||
| JKMD-4.5x4p | 4.5 | 340 | 980 | 50 | 4.5 | ||||
| JKMD-5x4p | 5 | 400 | 1250 | 54 | 5 | ||||
| JKMD-5.5x4P | 5.5 | 450 | 1450 | 60 | 5.5 | ||||
| JKMD-5.7x4P | 5.7 | 470 | 1550 | 62 | 5.7 | ||||
| JKMD-6x4P | 6 | 500 | 1650 | 64 | 6 | ||||
