Product Features of Hebi Shuangmin Mine Hoist

Heshi Shuangmin Mine Hoist Product Features:

Type We primarily manufacture single-rope winding mine hoists (such as the JK series), and may also be involved in multi-rope friction hoists (JKM series) or their key components.

Application It is suitable for lifting coal, ore, gangue, personnel, materials, and equipment in various types of mines, including coal mines, metal mines, and non-metal mines.

Key components Manufacturing of hoist main units (including drums, spindle assemblies, reducers, braking systems, etc.), as well as associated sheaves and depth indicators.

Technical Parameters We offer hoists of various specifications, covering a wide range of parameters including drum diameter, width, **static tension**, **static tension difference**, and lifting speed, to meet the requirements of different well depths, loads, and operating conditions.

Security and Compliance The hoists produced must comply with industry-specific safety standards and regulations (such as GB and MT standards) and obtain the corresponding safety certifications (such as the Coal Safety Mark MA certification and the Mine Safety Mark KA certification). These are critical requirements for mining equipment to gain market access. When making a purchase, be sure to confirm that the product has valid certifications.

Customization Customized hoist solutions can be provided based on the customer’s specific requirements (such as wellbore conditions, lifting capacity, and special needs).

Key structural parameters:

The JK-2.0×1.5P model produced by Hebi Shuangmin is a very common specification in mine hoists, belonging to the single-rope winding type of mine hoist.

JK : The Pinyin abbreviation for “mine hoist” (Jing Kuang).

2.0 : Indicates that the nominal diameter of the drum is 2.0 meters. This is one of the key, core dimensional parameters of the hoist, directly affecting its lifting capacity and the selection of the wire rope.

1.5 : Indicates that the nominal width of the reel is 1.5 meters. This width determines the length of steel wire rope that can be wound onto the reel, which in turn determines the lifting height (or depth).

JK-2.0×1.5P Mine Hoist: Typical Technical Parameter Ranges and Key Features:

Roller size:

Nominal diameter: 2000 mm

Nominal width: 1500 mm

The actual wrapping width may vary slightly depending on the diameter of the steel wire rope and the number of layers.

Steel wire rope:

Diameter: Typically ranges from Φ24mm to Φ32mm (specifically depending on the design **static tension**). This is the maximum diameter of steel wire rope that the drum can accommodate.

Static Tension: This is the tensile force that the hoist can withstand when it is stationary. For the JK-2.0×1.5P model, the typical range is approximately 44 kN to 60 kN (about 4.4 tons to 6.1 tons). This parameter is critical in determining the hoist’s lifting capacity (load capacity)! For specific values, please refer to the nameplate or technical specifications provided by the manufacturer for the particular model.

Static Tension Difference: For hoists equipped with a dual-drum system (one fixed drum and one floating drum) and featuring a clutch, this parameter is crucial—it represents the difference in static tension between the steel ropes on the two drums. For the JK-2.0×1.5P model, this difference typically ranges from approximately 44 kN to 60 kN (about 4.4 tons-force to 6.1 tons-force).

Increase the speed: Typically within the range of 2.5 m/s to 3.2 m/s. The actual operating speed will be adjusted based on the working conditions and the electronic control system.

Elevation (wrapping length):

The width of the drum and the diameter of the steel wire rope determine the single-layer **wrapping length**. For a 1.5 m wide drum and commonly used rope diameters:

Single-layer winding: approximately 345–450 meters (estimated value; exact calculation required).

Double-layer winding: approximately 694–800 meters (estimated value; exact calculation required).

Note: The actual allowable lifting height must be less than the **wrapping length**, and safety margins for factors such as test ropes and overwinding should also be taken into account. Accurate calculations are required based on the actual well depth and wire rope parameters.

Reducer:

Reduction ratio: The typical range may be between 20:1 and 31.5:1 (e.g., 24:1, 31.5:1). The selection of the reduction ratio depends on the motor speed and the required output speed/torque of the drum.

Power transmission: Match according to the motor power.

Electric motor:

Power: Calculated based on the lifted load, lifting speed, and system efficiency. For the JK-2.0×1.5P model, the typical motor power range is between 220 kW and 400 kW. For example, lifting a 6-ton object to a certain height at a specific speed may require a motor rated at either 280 kW or 315 kW.

Voltage levels: Commonly used are 380V, 660V, 6kV, and 10kV (high voltage is more common in high-power motors).

Rotational speed: typically 740 rpm.

Braking system:

Service brake: Hydraulic disc brakes are currently the mainstream choice, offering high braking torque and exceptional safety and reliability.

Safety brake (secondary braking): A redundant safety braking system that complies with safety regulations must be installed. Hydraulic disc brakes are typically used as well.

Brake oil pressure: The system's working pressure is typically around 6 MPa.