For hollow hydraulic jacks, it is inevitable to encounter wear after long-term use. It can be roughly divided into three stages: initial wear, normal wear and abnormal wear. Many people feel a little bit at a loss when they encounter hydraulic wrench wear. After making a solution, it is not easy to use, and it cannot be repaired or repaired.
Today, we will explain the different wear periods of the hollow hydraulic jack and the corresponding treatment methods:

Initial wear stage:
During the manufacturing process of hollow hydraulic jack parts, the metal surface of the parts may have some unevenness. When the relative movement of the metal surface occurs in the early stage, the hydraulic wrench parts move relatively at high speed, and slight friction will occur at this time , the part is in the initial wear stage.
Normal wear stage:
The hollow hydraulic jack is adapted to the electric pump through a period of running-in, and a new roughness with higher precision level is generated between the conflicts, and the wear speed is slowed down. Entering a relatively long period of stable use. This treatment is part of the normal wear and tear phase.
Abnormal wear stage:
In this stage, the service life of the metal material has reached the limit, and the surface is fatigued. Under the condition of high temperature and high pressure, the metal surface is prone to particle-like shedding, so the longer the wear time, it will cause Component failure.
For the hollow hydraulic jack, the three pairs of friction pairs in relative motion during operation may be called hydrostatic bearings. The wear between the connecting parts will increase the gap between the parts, increase the leakage in the pump, and correspondingly increase the oil temperature. raised. The service life of a hydraulic wrench is from the initial run-in period to the stable use stage and then to the fatigue shedding stage, that is, the severe wear stage.
The duration of the above three stages mainly depends on the cleanliness of the hydraulic oil used. I hope the above content will be helpful to you. For more information about the hollow hydraulic jacks, please contact us, email address: sales1@leadcrete.com