Pneumatic cylinder common faults and solutions

In the machinery industry, the Pneumatic cylinder, as an important executive element, is widely used in various automation equipment and production lines. However, due to various reasons, the cylinder can have various failures during use, affecting the normal operation of the equipment. Only by understanding the common faults and solutions of the cylinder can we better maintain and use the cylinder.

First, the cylinder leakage

Cylinder leakage is one of the common failures, usually caused by cracks or damage to the cylinder wall or cylinder gasket. Air leakage will lead to insufficient cylinder pressure, affecting the normal operation of the cylinder.

The solution:

1. Replace the cylinder wall or gasket. When replacing the gasket, it is necessary to pay attention to the material and size of the gasket to meet the standard, and ensure that the sealing surface is clean and without scratches when installing.

2. When replacing the cylinder wall, the cylinder needs to be boring or replaced.

2. Piston wear

The piston is an important part of the cylinder, and long-term use may lead to piston wear, affecting the compression capacity and working stability of the cylinder.

The solution:

1. Replace the worn piston. When replacing the piston, it is necessary to pay attention to the size and material of the piston to meet the standard, and ensure the coaxial degree of the piston and the cylinder when installing.

2. Check the wear of the piston regularly and replace the worn piston in time.

Three, the cylinder is not working normally

The abnormal operation of the cylinder may be caused by a variety of reasons, such as wet air in the cold joint, liquid level in the piston rod, the joint clamping is not strong, and the air outlet is blocked.

The solution:

1. Disassemble the cylinder for maintenance, clean it and reinstall it. During the installation, ensure that the components are correctly installed and securely connected, and ensure the cleanliness of the cylinder.

2. Strengthen the daily maintenance and maintenance of the cylinder, regularly check the working status of each component, and timely discover and solve potential faults.

Four, pneumatic actuator failure

Pneumatic actuator fault is also one of the common faults, such as internal and external leakage, insufficient output force and uneven action. This may be caused by eccentric piston rod installation, insufficient supply of lubricating oil, wear or damage to seals and sealing rings, etc.

The solution:

1. Readjust the center of the piston rod to ensure its coaxiality with the cylinder.

2. Often check whether the oil mist works reliably to ensure that the actuator is well lubricated.

3. Replace the worn or damaged seal ring and seal ring in time.

4. Remove impurities from the cylinder.

5. Replace the bruised piston rod.

6. Check and maintain the pneumatic actuator regularly to discover and solve potential faults in time.

Five, the solenoid valve coil is burned out or the valve core is stuck

The solenoid valve is an important component to control the action of the cylinder. If the solenoid valve coil is burned out or the valve core is stuck, the cylinder will not work.

The solution:

Replace the solenoid coil or clean the spool. When installing the solenoid valve, ensure that it is securely connected to the cylinder and that cables are correctly and reliably connected. At the same time, it is necessary to use qualified components to strengthen the maintenance and maintenance of components.