Introduction to the characteristics, application scope, and operating procedures of hydraulic winch products

1、 Product Features

Compact structure, small volume, and light weight

The hydraulic winch adopts an integrated design, where core components such as hydraulic motor, brake, and planetary gearbox are directly installed inside the drum to reduce space occupation. For example, the ZGW series hydraulic winch weighs only 100-200KG, but its tension range covers 5KN-3500KN, making it suitable for mobile devices or space limited scenarios.

Stable performance and high security

Low speed stability: The high volumetric efficiency of hydraulic motors (such as SUN balance valves in the United States) and high-quality valve groups (such as those with balance valves and overload valves) solve the problems of traditional winch secondary sliding and empty hook shaking, ensuring smooth lifting, lowering, and braking processes.

Overload protection: The system allows for long-term load support by limiting torque in both directions through overflow valves or hydraulic compensators, and different torque limits can be set in both directions to prevent equipment damage.

Explosion proof design: Adopting a squirrel cage motor for no-load direct starting, the electrical control equipment is simple and easy to make explosion-proof, suitable for flammable and explosive environments such as coal mines and acetylene production.

Flexible operation, wide speed range

Stepless speed regulation: By adjusting the flow rate of the hydraulic pump or the displacement of the motor, a continuously variable speed from zero to maximum speed can be achieved to meet different working conditions.

Convenient commutation: It can achieve the transformation between the rotation of the working mechanism and linear reciprocating motion without changing the direction of motor rotation, improving operational efficiency.

Easy maintenance and long lifespan

The surface of hydraulic components can self lubricate, reducing wear and tear. For example, the planetary gearbox adopts a hard tooth surface design, which reduces the wear rate by more than 30%.

Regularly replacing hydraulic oil and filter elements can maintain performance, with maintenance costs lower than electric winches.

2、 Application scope

Hydraulic winches are suitable for scenarios that require heavy lifting, handling, and hoisting operations, including:

industrial sector

Factories and warehouses: lifting and handling of goods, such as component hoisting in automobile manufacturing.

Port terminal: container and bulk cargo loading and unloading to improve operational efficiency.

Mining: Extracting ores and slag to adapt to harsh working conditions.

Architecture and Engineering

Construction site: hoisting steel bars, steel structure installation, precise control positioning.

Bridge engineering: lifting of beam segments, transportation of construction steel bars, such as the construction of cross sea bridges.

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

special scenario

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

Agriculture and fisheries: Material loading and unloading, such as lifting fishing boats and nets.

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

3、 Operating procedures

Pre operation inspection

Mechanical part: Check whether the bolts, couplings, and protective covers are secure, and whether the lubricating oil quality of the bearings meets the requirements.

Hydraulic system: Confirm that there is no oil leakage in the pump station and pipelines, the oil level in the tank is within the red line range, and the oil temperature is between 20-50 ℃.

Electrical system: Test the sensitivity and reliability of protective devices such as over winding, loose rope, and emergency foot brake.

Braking system: Check the wear of the brake shoes (not exceeding 8mm) and the clearance between the disc and brake (not exceeding 2mm) to ensure that the braking pressure reaches 50.5MPa.

Start and Run

No load test run: Start the auxiliary pump first, observe the pressure gauge (oil replenishment pressure 0.8-1MPa, servo pressure 2.5MPa, operating pressure 3MPa), confirm that there are no abnormalities, and then start the main pump.

Load operation: Slowly push the operating handle according to the signal command, and accelerate at a constant speed after the brake pressure reaches 5 ± 0.5MPa, avoiding sudden pulling and pushing.

Monitoring parameters: During operation, it is necessary to continuously observe instruments such as current, voltage, and oil pressure. The reading on the ammeter should not exceed 68A when unloaded, and should not exceed the rated current during normal operation.

Parking and maintenance

Normal parking: Hold the control lever and slowly pull it to the middle position. After the braking system is activated, stop the main and auxiliary oil pumps.

Emergency stop: In case of abnormal situations such as rolling or speeding, immediately use the foot switch or the main power stop button and investigate the cause.

Daily maintenance: Record operating data for each shift, regularly replace hydraulic oil and filter cartridges, clean oil tanks and filters.

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