The reasons for sudden interruption of wire rope electric hoists during use may involve multiple aspects, and the following are some of the main reasons for analysis:

1、 Electrical system malfunction

Power issue:

The unstable power supply voltage or sudden power outage causes the electric hoist to be unable to continue working. This may be caused by power grid faults, poor contact of power lines, or damaged power plugs.

Controller malfunction:

Internal circuit faults in the controller, such as component damage, loose wiring, or program errors, may cause the electric hoist to be unable to receive or execute correct operating instructions, resulting in sudden interruption of operation.

Sensor malfunction:

The malfunction of position sensors, weight sensors, etc. results in the electric hoist being unable to accurately perceive the current status, such as overload, limit, etc., which triggers the protection mechanism and interrupts the operation.

2、 Mechanical system malfunction

Motor malfunction:

Overheating, overload, or damage to the electric motor may cause the electric hoist to be unable to provide sufficient power to drive the load, thereby interrupting its operation.

Gearbox malfunction:

Internal gear damage, bearing wear, or poor lubrication in the reducer can all lead to a decrease in transmission efficiency, thereby affecting the normal operation of the electric hoist.

Brake malfunction:

Failure or improper adjustment of the brake may result in the electric hoist being unable to stop accurately during the lifting process, and even causing it to slip, thereby interrupting its operation.

Wire rope and drum malfunction:

Wire rope breakage, severe wear, or drum damage can all cause the electric hoist to be unable to continue carrying loads, thereby interrupting its operation. In addition, phenomena such as wire rope jumping and disorderly ropes may also affect the normal operation of electric hoists.

3、 External environmental factors

Overloaded:

If the load carried by the electric hoist exceeds its rated carrying capacity, it may cause problems such as motor overload, gearbox damage, or brake failure, thereby interrupting operation.

Improper operation:

The operator's failure to use the electric hoist correctly according to the operating procedures, such as emergency stop, overspeed lifting and other dangerous behaviors, may cause the electric hoist to suddenly stop working.

Environmental factors:

Adverse environmental factors such as high temperature, humidity, and corrosion may cause damage or performance degradation of internal components of electric hoists, thereby affecting their normal operation.

4、 Protection mechanism triggered

Overload protection:

When the load carried by the electric hoist exceeds its rated carrying capacity, the overload protection device will automatically trigger, causing the electric hoist to stop working to prevent equipment damage or safety accidents.

Limit protection:

When the electric hoist reaches the preset limit position, the limit protection device will automatically trigger, causing the electric hoist to stop working to prevent equipment damage or personnel injury.

Preventive measures and suggestions

Regular inspection and maintenance:

Regularly conduct comprehensive inspections and maintenance of electric hoists, including electrical systems, mechanical systems, sensors, and protective devices, to ensure that they are in good condition.

Correct use and operation:

Strictly follow the operating procedures when using electric hoists to avoid dangerous behaviors such as overloading and speeding. Operators should be familiar with equipment performance and operating methods to ensure correct operation.

Strengthen training and safety awareness:

Regularly provide safety training and emergency drills to operators to enhance their safety awareness and emergency response capabilities. Strengthen equipment safety management to ensure that the equipment is in a safe and controllable state.

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