A hydraulic winch is a mechanical equipment that uses a hydraulic system as a power source and transmits power through a hydraulic motor or cylinder to achieve material lifting or horizontal dragging. Its characteristics can be systematically analyzed from four dimensions: structure, performance, application, and maintenance:

1、 Structural features: compact and efficient, high integration

Integration of core components

The hydraulic winch is mainly composed of a hydraulic motor (low or high speed), a hydraulic normally closed multi disc brake, a planetary gearbox, a drum, a support shaft, and a frame. Some models are also equipped with optional devices such as clutches and rope presses. For example, hydraulic motors, brakes, and planetary gearboxes are directly integrated into the drum, forming a highly compact structure that reduces space occupation.

modular design

By directly integrating valve groups such as balance valves, overload valves, and speed control directional valves onto the motor oil distributor, the layout of the hydraulic system has been simplified. This design not only reduces the failure rate, but also facilitates later maintenance and upgrades.

Lightweight and high rigidity

By using high-strength materials and optimizing mechanical design, the winch achieves lightweight while ensuring strength. For example, the tension range covers 5KN-3500KN, but the volume and weight are much smaller than electric winches of the same power, making it easier to move and install.

2、 Performance characteristics: Safe and stable, strong adaptability

High load capacity and efficient transmission

The hydraulic system transmits power through high-pressure oil and can easily achieve high torque output. For example, winches ranging from 10T to 5000T often use hydraulic drive to meet the requirements of heavy-duty scenarios such as mines and ships. Meanwhile, hydraulic transmission has high efficiency and minimal energy loss.

Stepless speed regulation and precise control

By adjusting the flow rate of the hydraulic pump or the displacement of the motor, a continuously variable transmission from zero to maximum speed can be achieved. Combined with pressure control valves and flow control valves, it can accurately control the lifting height and speed, suitable for scenarios that require high positioning accuracy (such as bridge beam lifting).

Low speed stability and anti-skid design

The high volumetric efficiency of hydraulic motors and high-quality balance valves (such as products from SUN Corporation in the United States) effectively solve the problems of secondary sliding and empty hook shaking in traditional winches, ensuring smooth lifting, lowering, and braking processes. The model with clutch can also be freely lowered to enhance operational flexibility.

Overload protection and safety redundancy

By using overflow valves or hydraulic compensators to limit the effective torque in both directions, the system allows for long-term support of the load, and different torque limits can be set in both directions. When the load exceeds the rated value, the overflow valve automatically opens to prevent equipment damage.

3、 Application features: Wide range of scenarios, strong industry adaptability

Heavy industry sector

Mining: Used for extracting heavy objects such as ore and slag, and adapting to harsh working conditions.

Port terminal: container and bulk cargo loading and unloading, efficient completion of large tonnage cargo handling.

Shipbuilding: mooring winches, anchor winches, etc., to meet the needs of marine engineering.

Architecture and Engineering

Construction site: hoisting steel bars and installing steel structures to improve construction efficiency.

Highway bridges: lifting of bridge beam sections, transportation of construction steel bars, precise control of positioning.

Tunnel engineering: Complete material lifting and lowering in narrow spaces to adapt to complex terrains.

special scenario

Forest logging: transporting, loading and unloading timber to adapt to the wild environment.

Agriculture and fisheries: Material loading and unloading to meet low technological threshold requirements.

Electric power industry: replace power poles, install transformers, and ensure the safety of high-altitude operations.

4、 Maintenance features: Low cost, long lifespan

Simplify maintenance process

The maintenance of hydraulic winches mainly focuses on regular replacement of hydraulic oil and filter elements, without the need for complex disassembly. For example, replace the hydraulic oil every 500 hours of operation and check for clogged filter elements every 1000 hours.

Long-Life Technology 

The surface of hydraulic components can self lubricate, reducing wear and tear. Combined with high-strength materials and sealing design, the equipment has a significantly longer lifespan than electric winches. For example, the planetary gearbox adopts a hard tooth surface design, which reduces the wear rate by more than 30%.

Explosion proof and highly adaptable

The hydraulic system reduces the generation of electric sparks, and when combined with a squirrel cage motor, it can start directly without load. The electrical control equipment is simple and easy to make explosion-proof, making it suitable for flammable and explosive environments such as coal mines.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment