How to ensure the service life of the piston rod

The role of the seal in the piston rod is difficult to control in the entire hydraulic component. Although it is a relatively cheap component in the system, its role is indeed very important. In the range of temperature and pressure, it can be It protects the hydraulic oil in the hydraulic cylinder, and also bears relatively large pressure shocks and pulsations. The main function is to prevent pollutants from entering the system. When a sealed element in the piston rod is damaged, the hydraulic oil will leak out. The consequences caused at this time are more serious, not only to bear huge losses, but also to spend a lot of time to repair the piston rod.
The factor that directly leads to the failure of the piston rod seal is pollution. The oil film formed on the surface of the piston rod can not only lubricate the seal, but also effectively ensure the service life of the seal. At the same time, this layer of oil film will also absorb a large amount of dirt. In serious cases, the dirt will directly adhere to the surface of the piston rod. Then when the piston rod is retracting, the dirt will directly pass through the seal. And cause slight damage to the sealant. Therefore, the quality of the seal is very important for the use of the piston rod, and the effective solution is to let the dirt leave the piston rod directly.