Choosing hydraulic jacking plays an important role in the whole hydraulic system. We want the hydraulic jacking to maintain a good sealing performance throughout its life cycle, while having low friction and wear, and also to have good performance in harsh working environments.

In order to meet the different requirements of the above aspects, we should choose hydraulic jacking correctly. Since many factors will affect the choice of hydraulic jacking, it is necessary to understand the application environment of the oil cylinder when choosing hydraulic jacking, and make a choice after analyzing and discussing its performance requirements:

1. Surface treatment

The characteristics of the surface of the cylinder piston and piston rod have a great influence on the life of hydraulic jacking. Surface properties are often defined by the value of surface roughness Ra, which is the arithmetic mean value of the surface shape deviation from the center line. However, these values cannot fully represent the influence of surface conditions on hydraulic jacking, because even under the same roughness, different surface shape features can lead to different degrees of hydraulic jacking wear on hydraulic jacking.

2. Friction

The friction of hydraulic jacking and sealing surfaces depends on many factors: surface roughness, surface properties, pressure, medium, temperature, hydraulic jacking material, hydraulic jacking type and movement speed.