The selection of hydraulic oil number will directly affect the working condition of hydraulic system

The selection of hydraulic oil number will directly affect the working condition of hydraulic system. When the viscosity of oil is too high, the power of the system to overcome the viscosity force between liquid molecules is greater, and the heat energy converted will cause temperature rise. Oil viscosity is too low, easy to cause system leakage. For some inferior hydraulic oil, its viscosity and temperature characteristics are poor, easy to emulsify and cause cavitation. The selection of hydraulic oil should be combined with the system working conditions, working environment to determine the viscosity of the required hydraulic oil, reasonable selection of hydraulic oil. Select low viscosity hydraulic oil as far as possible to reduce the heat generated by friction.