The shaft sinking winch is primarily used on the surface of coal mines, metal mines, and non-metallic mines to suspend equipment (such as hoisting platforms, water pumps, air ducts, compressed-air cylinders, grouting pipes, ventilation ducts, etc.) during shaft sinking operations. It is strictly prohibited for use in transporting people. The winch can also serve as a substitute for construction hoists, providing lifting functions for ground-based construction and material handling operations. Additionally, it can be used to replace steel wire ropes connecting containers in multi-rope friction hoists, or temporarily function as a shaft-sinking winch. This winch is suitable for short-term operation but not recommended for prolonged heavy-load lifting applications. When the winch is equipped with a worm-gear reducer, it must be installed horizontally.

Well-drilling winches are available in two types: those with mechanical brakes and those with disc brakes—both can be manufactured.

Winches are classified by their structural type into: winding type and friction type.

Winches are classified according to the number of drums as single-drum winding winches and double-drum winding winches.

The safety-type shaft sinking winch can operate when powered on and also functions normally during power outages. It offers three operating modes: electric, manual, and mechanical (belt-driven).

Product's execution standard

The shaft sinking winch is designed and manufactured in accordance with the Safety Inspection Specifications for Shaft Sinking Winches Used in Coal Mines, AQ 1031-2007, and GB/T 15112-2007, "Shaft Sinking Winches," which are industry standards for production safety of the People's Republic of China.

Working principle

Powered by electricity and featuring mechanical gear transmission, the system transmits power via steel cables and relies on a multi-level, highly reliable braking and electronic control system as its core safeguard. Ultimately, this ensures precise, safe, and dependable suspension and lifting operations for heavy equipment during shaft construction. When the main motor is started, the motor rotor transmits power to the high-speed shaft of the reducer through an elastic coupling. After being decelerated by the reducer, the power is further transmitted from the reducer’s driven shaft to the main shaft assembly via a cross-slider coupling. By repeatedly reversing the motor’s direction, the drum can wind or unwind the steel cable, enabling the lifted object to move periodically back and forth. This also guarantees a consistent supply of torque required for the hoist’s operation.

Technical Features of Well Drilling Winches

(1) Low-speed, high-torque: Well-drilling winches place greater emphasis on delivering enormous and stable torque at extremely low speeds, to meet the demands of suspending loads weighing hundreds of tons and performing slow-speed lifting operations.

(2) Large rope capacity: The design of the drum’s width and diameter must accommodate hundreds or even thousands of meters of steel wire rope to meet the requirements of deep-well construction.

(3) High speed-regulation performance is required: Suspended equipment needs extremely slow, micro-motion speeds (on the order of centimeters per second) for leveling and alignment; therefore, the electronic control system must exhibit exceptionally high low-speed stability.

(4) High safety redundancy: The braking system typically employs multiple independent redundant designs. The safety brake acts directly on the drum, providing a substantial reserve of braking torque (usually no less than three times the static torque).

(5) Robust construction: To withstand the harsh conditions on construction sites, the design places greater emphasis on durability, robustness, and reliability.

Product Model Designation Method

Technical Parameters

Technical Parameters of the JZ Series Well-Drilling Winch
Model	Maximum static tension of steel wire rope (kN)	Reel rope capacity (m)	Roller diameter (mm)	First-layer steel wire rope speed (m/s)	Steel wire rope diameter (mm)	Motor power (kW)	Voltage (V)
JZ-5/400	50	400	630	0.25	26	11	380
JZ-5/600	50	600	630			15
JZ-5/1000	50	1000	630			15
JZ-10/600	100	600	800	0.75	32	22
JZ-10/800	100	800	800
JZ-10/1000	100	1000	800
JZ-16/800	160	800	1000		40	30
JZ-16/1000	160	1000	1000			37
JZ-16/1300	160	1300	1000			37
JZ-25/1000	250	1000	1050		52	45
JZ-25/1320	250	1320	1050
JZ-25/1500	250	1500	1050
JZ-25/1800	250	1800	1050
JZ-40/1300	400	1300	1250		60	75
JZ-40/1500	400	1500	1250			90
JZ-40/1800	400	1800	1250			90
2JZ-10/1000	100	1000	800		32	37
2JZ-16/1300	160	1300	1000		40	55
2JZ-25/1320	250	1320	1050		52	90
JZA-5/400	50	400	630	0.25	26	15
JZA-5/1000	50	1000	630			15
JZA-5/1300	50	1300	630			22
JZA-10/1500	100	1500	850	0.75		37