Reasons for the performance decline of hydraulic cylinder seals

In the hydraulic cylinder, the seal can be said to be an important component and plays a key role, which can be said to be irreplaceable. So, what problems will occur in the use of hydraulic cylinder seals, or cylinder seals for short? What is the cause?
The question about the above cylinder seals is also of great concern to everyone. The answer is that the cylinder seals usually leak during use. As for the cause of this problem, the following Dalan hydraulic manufacturer will consider and analyze it from different aspects in order to have a comprehensive analysis.
1. Installation
1) The seal is installed in the wrong direction or in the opposite direction. There is also a possibility that foreign matters or dust may be accidentally mixed in the installation process, resulting in leakage of cylinder seals.
2) Due to poor assembly, the cylinder seal is damaged, which causes leakage.
3) The surface of the oil cylinder seal is scratched, or the concentricity of the piston rod is not good, and the eccentric load, which will also cause the leakage problem.
2. Selection of seals
1) The hardness of the cylinder seal is not appropriate, or the service pressure is too high. In addition, if the service temperature is too low, the seal material will harden or shrink, resulting in leakage.
2) The material used is miscible with the medium, which causes the material to be dissolved or softened, and then the sealing performance fails.
3) The oil cylinder moves too fast, causing overheating or excessive wear of seals. In addition, the oil cylinder cavity is subject to severe vibration, or due to the presence of dust and poor lubrication, resulting in the leakage of oil cylinder seals.
4) In the selection of the size of the seal, there is no matching one, which makes the installation size inappropriate, thus causing leakage problems.
In addition to the above two aspects, there are other reasons for the leakage of cylinder seals. However, through some specific analysis and discussion, to some extent, we can still take effective measures according to specific reasons to solve this problem, so that the hydraulic cylinder can be used normally.