1) suitable viscosity and good viscosity temperature performance, to ensure that the hydraulic element changes in the working pressure and temperature conditions to obtain good lubrication, cooling and sealing.
2) good extreme pressure and antiwear property, in order to ensure the oil pump, a hydraulic motor, the control valve and the cylinder of high pressure, high speed friction pair in the harsh conditions of normal lubrication, reduce wear.
3) excellent oxidation stability, hydrolytic stability and thermal stability, to resist the impact of air, moisture and high temperature, high pressure and other factors or action, make it not easy to deteriorate, prolong the service life.
4) excellent anti foam and air release value, to ensure that by mechanical agitating vigorously in operation under the conditions generated foam can disappear quickly; and can be mixed with oil in the air released in a relatively short period of time, in order to achieve an accurate, sensitive, stable transmission of static pressure.
5) good demulsibility, with mixed oil in the water quickly separation, so as to avoid the formation of emulsion, causing corrosion of metal materials and reduce the use performance of hydraulic system.
6) good corrosion, to prevent corrosion of metal surface.