As a mechanical component, the Pneumatic Cylinder will inevitably produce some failures in the use process. What are the common failures? What should we do in the event that one of these Pneumatic cylinders fails? Joosung will introduce you to several common Pneumatic cylinder failures, and also tell you how to solve these problems
The Pneumatic Cylinder Common Failures
1.When Pneumatic cylinder leakages internal or external, it is generally caused by eccentric piston rod installation, insufficient supply of lubricating oil, wear or damage of sealing ring, impurities in the cylinder and piston rod scratch. So to adjust the center of the piston rod is necessary to ensure the coaxiality of the piston rod and the cylinder; Frequently check the oil mist works reliably to ensure lubrication in good condition;
When the sealing abrasion or damaged,it must be replaced in time;
When impurities in the pneumatic cylinder, it should be removed in time;
When a scratch on the piston rod, it should be replaced.
2.When the pneumatic cylinder outputs insufficiently and its action is not smooth. It is generally caused by the piston or piston rod being stuck, poor lubrication, insufficient air supply or condensation water and impurities in the cylinder.In this condition, the center of the piston rod should be adjusted;Check the oil mist device works reliable; Check the air supply line no blocked If there is condensation water and impurities in the cylinder, it should be removed in time.
3.When the buffer effect of the pneumatic cylinder is poor, It is generally caused by the abrasion of the buffer sealing or the damage of the regulating screw. So replace the sealing ring and adjusting screw is necessary.
4.When Pneumatic cylinder piston rod and cylinder head damage, It is generally caused by the piston rod install incorrect or buffer mechanism does not work. In this case, the central position of the piston rod should be adjusted;Replace the buffer ring or adjusting screw.
The Pneumatic Cylinder Common Faults' Trouble cause and Solution
Common Fault | Analysis Of Causes | Elimination Methods | |
External leakage | piston rod end is leakage | Piston rod installed eccentrically Short supply of lubricating oil piston seal ring worn impurities on the mating surface of piston rod bearing | Reinstall and adjust the piston rod so that it is not subject to eccentric and lateral loads. Check whether the oil mist is malfunctioning Replace sealing ring Clean and remove impurities, install and replace dust cover Replace the piston rod |
Air leakage between cylinder and cylinder head | |||
Buffer adjuster leakage | |||
leakage |
The piston shoots air at both ends | piston seal ring damaged poor lubrication Piston stuck Piston mating surface defected Impurities | Replace the seal Check whether the oil mist is malfunctioning Reinstall and adjust the piston rod so that it is not subject to eccentric and lateral loads Remove impurities and use purified compressed air |
Lnsufficient output force Unsteady movement
| poor lubrication Piston or piston rod stuck Insufficient air supply flow condensate impurities | Check whether the oil mist is malfunctioning Reinstall and adjust to eliminate eccentric lateral loads Increase the diameter of the connection or pipe joint use clean dry compressed air to prevent water condensation | |
Poor buffering effect | Buffer ring worn adjusting screw damaged cylinder speed too high | Replace sealing ring Replace adjusting screw Check whether the buffering device is suitable | |
Damage |
Piston rod damaged
| Eccentric lateral load Piston rod subjected to impact load cylinder speed too high | Eliminate eccentric lateral loads Impacts cannot be applied to the piston rod Set up buffer |
Cylinder head damaged | Buffer not working | Provide a buffer mechanism externally or in a loop | |