Winch, also known as winch, is exquisite and durable. Mainly used for material lifting or towing in buildings, water conservancy projects, forestry, mines, docks, etc. Winches have the following characteristics: high versatility, compact structure, small volume, light weight, heavy lifting capacity, and convenient use and transfer. They are widely used for material lifting or leveling in construction, water conservancy engineering, forestry, mines, docks, and other fields. They can also be used as matching equipment for modern electronic control automatic operation lines. There are 0.5-350 tons, divided into two types: fast and slow. Among them, the winch weighing over 20 tons is a large tonnage winch, which can be used alone or as a component of machinery such as lifting, road construction, and mine lifting. It is widely used due to its simple operation, large rope winding capacity, and convenient relocation. The main technical indicators of the winch include rated load, supported load, rope speed, rope capacity, etc.