The reasons for the damage of the hydraulic pump of the injection molding machine are as follows

Cavitation, that is, when the pressure inside the machine is reduced to below the saturated vapor pressure, there is mainly a local gasification phenomenon in the fluid of hydraulic oil. In short, when the hydraulic oil does not fully occupy the space, that is, there is a vacuum in the oil circuit, which will cause this kind of cavitation phenomenon. So, what are the factors causing cavitation? Let’s give you a brief introduction!

1. The matching problem between the pump and the electric motor causes the pump speed to be too high.
2. The pump suction pipe is too long, or the suction port is limited.
3. The viscosity of hydraulic oil is too high.
4. Check whether the exhaust port on the fuel tank is blocked.