When the electric hoist (electric hoist) leaves the factory, its gearbox is usually filled with lubricating oil. This is because during the production process, in order to ensure the normal operation of the equipment and extend its service life, manufacturers will lubricate the gearbox. The main function of lubricating oil is to reduce friction and wear between gears, and improve the operational efficiency and stability of equipment.

Specifically, the type and filling amount of lubricating oil inside the gearbox will be determined based on the specific model, working conditions, and usage requirements of the equipment. For example, in heavy lifting equipment such as winches and wire rope electric hoists, gearboxes are usually lubricated with gear oil because gear oil has high viscosity and load-bearing capacity, which can better adapt to heavy loads and high-speed operation conditions. At the same time, the filling amount of lubricating oil also needs to be strictly controlled to ensure that the gears can be fully immersed in oil, while avoiding problems such as excessive lubricating oil causing oil temperature rise and oil seal leakage.

In addition, it should be noted that even if the gearbox is filled with lubricating oil at the factory, it still needs to be regularly inspected and replaced during use to ensure the normal operation of the equipment and extend its service life. The specific lubrication cycle and oil change standards can refer to the equipment's user manual or consult the manufacturer's after-sales service department.

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