The actuator is one of the indispensable configurations in the industrial automation process. The use of the actuator is very frequent, and it is generally installed in harsh environments such as high temperature and high pressure, and is prone to failure. According to different air sources, actuators are divided into electric, pneumatic, hydraulic, etc. Here, the editor mainly introduces the common system faults and maintenance methods of pneumatic actuators.

Common faults of pneumatic actuators are stuck, leaked, and the control coil is burned out. Based on these three situations, here is a brief explanation of the maintenance methods for such failures.

If the pneumatic actuator is stuck, disassemble the actuator, check where it is stuck, solve it, and reassemble it;

The leakage of the pneumatic actuator is divided into internal leakage and external leakage. If there is external leakage, check whether the piston rod and sealing sleeve are damaged and replace them in time. If it is only worn, reassemble directly. The internal leakage may be caused by damage to the sealing ring, impurities entering or the piston being stuck. , Re-replace the seal ring and add lubricating oil to the piston part. To judge that the coil is burnt, you can check it with a multimeter after turning on the power supply. If it is damaged, you can directly replace the coil.
The above are the maintenance methods for the three common faults of pneumatic actuators.