The air pressure in the cylinder decreases and the air leaks.

Reducing cylinder pressure to solve air leakage problem;

1. There is leakage inside the cylinder, and there is no leakage outside, but the thrust (or tension) of the cylinder is insufficient. Disconnect the exhaust port to check whether there is air exhaust, check whether the piston ring seal is replaced, and check whether the inner wall of the cylinder is worn or brushed.

2. The cylinder leaks, so replace the related piston rod seal and dust ring.

3. When the cylinder runs to the end, the impact force is large, so the buffer air port should be reduced.

4. When the cylinder runs to the end, the speed drops obviously, and the thrust can't meet the requirements. Check and clear the buffer vent.

5. The inner wall of the cylinder is seriously worn, so check and replace the guide belt on the piston rod.

Do a good job of cylinder maintenance at ordinary times and use a clean air source, in which a pneumatic triplet needs to be installed for lubrication and filtration. Once the oil mist lubrication is carried out in the air source, it must be ensured that it cannot be interrupted, and there must be oil in the oil mist device continuously.