What are the requirements for the working medium of a hydraulic press?

The requirements for the working medium of a hydraulic press mainly include the following aspects:

1. Excellent lubricity: It can form a good oil film between the moving parts of hydraulic components, reduce friction and wear, and increase the

 service life and efficiency of the components.

2. Appropriate viscosity: The viscosity should be moderate. If it is too high, it will increase flow resistance, increase pressure loss in the hydraulic 

system, increase power consumption, and slow down the action response. Too low viscosity will lead to increased leakage.

The reduction in volumetric efficiency affects the working accuracy and stability of the hydraulic press.

3. Good stability: including thermal stability and chemical stability. During the operation of the hydraulic press, it can withstand high temperatures 

and pressures without obvious deterioration, decomposition or oxidation, to ensure the stable performance of the working medium.

Prevent the formation of substances such as sediment and gum that affect the normal operation of the system.

4. Strong corrosion resistance: It has excellent corrosion resistance to metal components in hydraulic systems, preventing damage to components

 due to corrosion and ensuring the reliability and service life of the system.

5. Good anti-foaming property: It can quickly separate the air mixed in, preventing the formation of foam. Because foam can reduce the 

transmission efficiency of the hydraulic system, cause vibration and noise, and even lead to system failure

Normal operation.

6. High cleanliness: Minimize the content of impurities, particles and other contaminants as much as possible to prevent clogging of small holes 

and gaps in hydraulic components, avoid accelerating component wear, and affect the normal operation and working accuracy of the system.

7. High flash point and ignition point: It has a relatively high flash point and ignition point to enhance the safety of the working medium in high-

temperature environments and reduce the risk of fire, especially in working conditions with open flames or high-temperature heat sources.

8. Good environmental friendliness: Under the premise of meeting the working performance requirements of the hydraulic press, environmentally 

friendly working media should be selected as much as possible to reduce pollution to the environment.

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