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2JKB (Flameproof) Single-Rope Winding Hoist

The electric motor transmits power to the drum that winds the steel wire rope via a gearbox, enabling the lifting and lowering of the container. Speed control is achieved through electrical regulation. The disc-type brake system is operated by hydraulic and electrical controls for precise braking. A variety of position-indication systems ensure accurate monitoring of the container's depth during operation. Additionally, a sophisticated integrated mechanical, electrical, and hydraulic control system—comprising various transmission sensors and control components—provides comprehensive monitoring and protection for the entire machine. Finally, advanced computer and network technologies facilitate seamless information exchange both within and outside the hoisting unit.

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Single-rope winding hoist

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Product Description

Product Overview

　　The electric motor transmits power to the drum that winds the steel wire rope via a gearbox, enabling the lifting and lowering of the container. Speed control is achieved through electrical regulation. The disc brake system is operated by hydraulic and electrical controls for precise braking. A comprehensive depth indicator system, integrated with various position-sensing mechanisms, ensures accurate monitoring of the container's descent. Additionally, a sophisticated electromechanical-hydraulic integrated control system—comprising diverse transmission sensors and control components—provides real-time monitoring and protection for the entire machine. Finally, advanced computer and networking technologies facilitate seamless information exchange both within and outside the hoisting unit.

Uses and application scope of the product

　　The JK and 2JK series single-rope winding mine hoists are primarily used for lifting coal, materials, personnel, and lowering equipment in vertical or inclined shafts of coal, metal, and non-metal mines. They can also be employed for other types of traction and transportation tasks.

Product Execution Standard

　　The JK and 2JK series products are designed and manufactured in accordance with the industry standard AQ1035-2007, "Safety Inspection Specifications for Single-Rope Winding Mine Hoists Used in Coal Mines," as well as the national standards GB/T 20961-2018, "Single-Rope Winding Mine Hoists," and Q/YX006-2020, "Single-Rope Winding Mine Hoists." They also comply with the "Coal Mine Safety Regulations" and GB 16423-2020, "Safety Regulations for Metal and Non-Metallic Mines."

Product Model Example

　　Example 1: A mine hoist with a single-drum, simple rope-winding design, featuring a drum diameter of 3 m and a width of 2.2 m, equipped with non-smoke-separating resistance-based speed control—its product model is: JK-3*2.2.

　　Example 2: A mine hoist featuring a double-winding, simple rope arrangement with explosion-proof variable-frequency speed control, having a drum diameter of 2 meters and a width of 1 meter, would be designated as model 2JKB-2*1P.

Single-Rope Winding Mine Hoist Product Parameters: JKB Series

Serial Number	Product Model	Roller				Maximum Static Tension of the Steel Wire Rope		Maximum Static Tension Difference of Steel Wire Rope		Maximum diameter of the steel wire rope	Minimum breaking strength of steel wire rope	Increase height or transport length			Maximum boost speed	Electric motor speed (not exceeding)
		Number	Diameter	Width	Center distance between two rollers	Manned	Loading cargo	Manned	Loading cargo			First-layer wrapping	Second-layer winding	Three-layer winding
			m			KN				mm	KN	Not greater than
												m			m/s	r/min
1	2JKB-2*1P	2	2.0	1.00	1.09	60		40		32	540	165	363	591	7.0	750
2	2JKB-2*1.25P			1.25	1.34							222	477	763
3	2JKB-2.5 x 1.2P		2.5	1.20	1.29	90		55		40	810	228	489	787	8.8
4	2JKB-2.5 x 1.5P			1.50	1.59							302	638	1013
5	2JKB-3*1.5P		3.0			130		80		50	1170	280	594	952	10.5
6	2JKB-3 * 1.8P			1.80	1.89							351	737	1169
7	2JKB-3.5 x 1.7P		3.5	1.70	1.79	170		115		58	1530	426	862	-	12.6
8	2JKB-3.5 x 2.1P			2.10	2.19							462	915	-