When the voltage is normal but the electric hoist cannot work properly, there may be multiple reasons. Here are some possible reasons and corresponding explanations:

Motor malfunction:

Motor burnout: The motor may burn out due to overload, overheating, or other reasons, causing it to malfunction. At this point, it is necessary to replace the motor.

Severe sweeping of the chamber by the motor: The motor may be unable to rotate due to wear or foreign objects entering the chamber. In this case, major repairs or replacement of the motor are required.

Braking system issues:

The brake wheel and end cover are rusted: If the electric hoist is not used for a long time and not maintained properly, the brake wheel and end cover may stick together due to rust, causing the brake wheel to be unable to detach when starting and the motor to make abnormal noises but not rotate. At this point, the brake wheel should be removed, the corroded surface cleaned, and then tested again.

Electrical control system malfunction:

Main and control circuit faults: Electrical components in the main and control circuits of the electric hoist may be damaged, the circuit may be disconnected or have poor contact, resulting in the motor being unable to be powered on. At this point, it is necessary to inspect the main and control circuits, repair or replace faulty electrical components and circuits.

Voltage fluctuation: Although the voltage is normal, there may be voltage fluctuations or instability that prevent the motor from working properly. At this point, a voltage regulator can be used or the power supply system can be checked to ensure voltage stability.

Mechanical malfunction:

Transmission component failure: The transmission components of the electric hoist, such as gears, bearings, etc., may cause poor transmission or inability to transmit due to wear or damage. At this point, it is necessary to inspect and replace damaged transmission components.

Wire rope issue: The wire rope may not function properly due to wear, breakage, or knotting. At this point, it is necessary to check the condition of the steel wire rope and replace or repair it in a timely manner.

Overloading usage:

If the electric hoist is overloaded, the motor may not start or rotate due to excessive load. At this point, the machine should be stopped immediately and the load should be reduced to allow the electric hoist to operate at its rated power.

Other factors:

Environmental factors such as temperature and humidity may affect the normal operation of electric hoists. For example, high temperatures may cause the motor to overheat and shut down.

Human factors such as improper operation and poor maintenance may also cause the electric hoist to malfunction.

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