The main reason why electric hoists cannot dry and lack lubricating oil is due to their working mechanism and performance requirements. The following is a detailed analysis:

1、 Working mechanism of electric hoist

Electric hoist is a device that is driven by an electric motor to lift and lower heavy objects. It contains multiple key components inside, such as gearbox, bearings, chains, etc. These components need to cooperate with each other during the working process to ensure the normal operation of the electric hoist.

2、 The importance of lubricating oil

Lubrication function: Lubricating oil can reduce the friction between various components inside the electric hoist, reduce wear, and improve the service life of the equipment. If the electric hoist is dry and lacks lubricating oil, the friction between components will increase, leading to increased wear and even causing malfunctions.

Heat dissipation function: During the operation of the electric hoist, components such as the motor and gearbox generate heat. Lubricating oil can take away this heat and play a role in heat dissipation. If there is a lack of lubricating oil, heat cannot be dissipated in a timely manner, which may cause the motor to overheat, thereby affecting the performance and lifespan of the electric hoist.

Reduce noise: Lubricating oil can reduce the noise generated by electric hoists during operation, making the equipment quieter.

Protective function: Lubricating oil can also form a protective film on the surface of components, preventing impurities such as moisture and dust from entering the air and causing corrosion and damage to the electric hoist.

3、 The consequences of dryness and lack of lubricating oil

Abnormal noise: Due to increased friction between components, the electric hoist may produce abnormal noise during operation, which not only affects the normal operation of the equipment but also may cause noise pollution to the surrounding environment.

Motor overheating too quickly: Motors lacking lubricating oil will quickly heat up during operation. If the heat cannot be dissipated in a timely manner, it may cause the motor to overheat and even lead to safety accidents such as fires.

Accessory damage: Electric hoists that are dry for a long time and lack lubricating oil will experience increased wear on their internal components, which may lead to accessory damage, increased maintenance costs, and downtime.

4、 How to avoid electric hoists being dry and lacking in lubricating oil

Regular inspection: Regularly inspect and maintain the electric hoist to ensure good lubrication of its internal components.

Add lubricating oil according to regulations: According to the instructions and maintenance manual of the electric hoist, add lubricating oil on time and in the appropriate amount.

Pay attention to the usage environment: Avoid placing the electric hoist in a damp and dusty environment to reduce corrosion and damage to the equipment.

Professional maintenance: If abnormal noise or rapid heating are found in the electric hoist, professional maintenance personnel should be contacted in a timely manner for inspection and maintenance.

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