What is the leakage of piston rod in hydraulic cylinder
Hydraulic cylinder oil leakage is a headache for many users, but this problem still often occurs. Leakage problems can be mainly divided into internal leakage and external leakage of sealing structure and oil leakage caused by cylinder block damage. For the hydraulic cylinder, the internal piston rod is prone to wear due to frequent contact with various impurities.
Especially in some harsh working conditions, the surface of the piston rod may adhere to a lot of dust, soil and other substances, of which there will be some harder substances. Therefore, due to the influence of various factors, the piston rod of the hydraulic cylinder may leak out. The reason for the external leakage is that the structure of the shaft is unreasonable.
The second important reason is that the clearance between the piston rod and the guide sleeve in the hydraulic cylinder is no longer within a reasonable range. For example, the problem of black piston rod surface encountered by many users is actually caused by this reason. From the market survey, we found that this factor occupies a large proportion in the cause of piston rod leakage, which has exceeded 60%. Therefore, we should pay more attention to this problem in the future.
The last factor is the piston rod surface damage, resulting in leakage problems. This is because in practical applications, many situations may cause certain damage to the surface of the piston rod, which will increase the friction between the sealing ring and the piston rod early, so that the sealing ring wear failure. This situation is one of the main causes of early piston rod leakage.
The above analyzes the main reasons for the leakage of the internal piston rod in the process of using the hydraulic cylinder from three aspects. I hope that users can pay attention to this problem, as far as possible to avoid leakage of the piston rod.
