What causes the hydraulic system temperature to be too high?

The heating of the hydraulic system directly affects the work of the whole machine and delays the construction period. So what is the cause of the high system overheating temperature?

1.The volume of the oil tank is too small, the heat dissipation area is not enough, the oil cooling device is not installed, or the cooling device is installed but its capacity is too small.

2. The unloading circuit in the system fails or because the unloading circuit is not set up, the oil pump cannot be unloaded when it stops working, and the entire flow of the pump overflows under high pressure, resulting in overflow loss and heat, resulting in oil heating.

3.The system pipeline is too thin and too long, and the bending is too much, and the local pressure loss and the pressure loss along the process are large.

4.The component accuracy is not enough and the assembly quality is poor, and the mechanical friction loss between relative motions is large.

5. The matching gap of the matching parts is too small, or the gap is too large after use and wear, and the internal and external leakage is large, resulting in large volume loss, such as the reduction of the volumetric efficiency of the hydraulic oil pump and the rapid heating.

6. The working pressure of the hydraulic system is adjusted higher than the actual need. Sometimes it is because the seal is too tight, or because the seal is damaged and the leakage increases, the pressure has to be increased to work.

7. The temperature of the climate and operating environment is high, which causes the oil temperature to rise.

8. The viscosity of the oil is improperly selected. If the viscosity is large, the viscous resistance will be large. If the viscosity is too small, the leakage will increase. Both conditions can cause the oil to heat up.

9. The oil in the hydraulic system is heated and the temperature is high, which will cause malfunctions such as inflexible operation of the equipment, discontinuous operation, weak work and reduced working pressure.

All in all, the rise of hydraulic oil temperature is inevitable when the hydraulic system is working, which is the result of the mutual conversion of mechanical energy, hydraulic energy and thermal energy. Endocrine leakage is also inevitable, and it is normal to control it within a certain range. It is recommended that the hydraulic system should be routinely maintained and repaired in order to provide better service.