Electric hoists may experience fatigue after prolonged or overloaded use, leading to their inability to function properly. Here are some possible reasons:

Motor overheating:

Long term continuous operation will generate a large amount of heat inside the motor. If the heat dissipation is poor, the temperature of the motor will rise sharply, triggering the overheat protection device and causing the motor to stop working. This is an automatic protection measure designed to protect the motor from damage.

Component wear:

The chain, sprocket, bearings, and other components of an electric hoist may experience wear and tear after prolonged use. Worn parts can increase frictional resistance, reduce transmission efficiency, and even cause jamming or breakage, thereby affecting the normal operation of the electric hoist.

Voltage instability:

If the voltage in the working environment is unstable or the power supply voltage is lower than the rated voltage of the electric hoist, the motor may not be able to obtain sufficient power to drive the load, resulting in abnormal operation.

Overloading usage:

Electric hoists have a rated load-bearing capacity. If overloaded for a long time or frequently, it can cause excessive pressure on the motor and transmission components, accelerating wear and damage, ultimately leading to malfunction.

Improper maintenance:

Lack of regular maintenance and upkeep, such as not replacing worn parts in a timely manner, not cleaning up dust and oil stains, can affect the performance and service life of electric hoists.

To address the above issues, the following measures can be taken to prevent electric hoists from malfunctioning due to fatigue:

Reasonably arrange working hours: avoid prolonged continuous work and provide appropriate rest time for motors and transmission components.

Regular maintenance and upkeep: Check and replace worn parts, clean up dust and oil stains, and keep the equipment clean and lubricated.

Pay attention to voltage stability: Ensure stable power supply voltage and avoid voltage fluctuations affecting the motor.

Avoid overloading: strictly follow the rated load capacity of the electric hoist to avoid overloading work.

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