The sudden interruption of a pneumatic hoist may be caused by various reasons. Here are some possible reasons for analysis:

1、 Gas supply issue

Insufficient air pressure:

The normal operation of pneumatic hoists relies on stable and sufficient air pressure. If the air pressure of the gas source is insufficient, it may cause the hoist to be unable to provide sufficient lifting force, resulting in sudden interruption of operation.

Air path blockage:

Impurities, moisture, or ice in the air path may cause blockage, affecting the normal transmission of air pressure and preventing the pneumatic hoist from working properly.

2、 Control system malfunction

Electromagnetic valve malfunction:

Electromagnetic valve is a key component for controlling the lifting of pneumatic hoists. If the solenoid valve malfunctions, such as coil burnout, stuck valve core, etc., it will cause the hoist to be unable to receive control signals, thereby interrupting operation.

Control circuit fault:

Problems such as open circuits, short circuits, or poor contacts in the control circuit may result in incorrect transmission of control signals, making the pneumatic hoist unable to respond to operating instructions.

3、 Mechanical component failure

Chain or wire rope breakage:

The lifting components of pneumatic hoists, such as chains or wire ropes, may break due to wear, corrosion, or overload during long-term use, causing the hoist to be unable to continue lifting.

Guide wheel or pulley malfunction:

The guide wheel or pulley plays a role in supporting and guiding the chain or wire rope in the pneumatic hoist. If these components malfunction, such as severe wear or bearing damage, it will affect the normal operation of the hoist.

4、 Improper operation or external factors

Operational error:

The operator's misoperation, such as accidentally pressing the emergency stop button, incorrect operation sequence, etc., may cause the pneumatic hoist to suddenly stop running.

External interference:

External factors such as strong electromagnetic interference and adverse weather conditions (such as thunderstorms, strong winds, etc.) may also interfere with the normal operation of pneumatic hoists.

5、 Insufficient maintenance and upkeep

Lack of regular maintenance:

Pneumatic hoists require regular maintenance and upkeep, including cleaning, lubrication, inspection, etc. If necessary maintenance is lacking, it will lead to increased component wear and frequent malfunctions.

Improper use of lubricants:

During maintenance, if inappropriate lubricants are used or worn parts are not replaced in a timely manner, it may also lead to operational failures of the pneumatic hoist.

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