The hydraulic oil used in this CNC press brake should have a viscosity of 4 ° E ~ 5 ° E (EN viscosity) at 50 ℃ or 45 ~ 68 centistoke (kinematic viscosity) at 40 ℃.
It is recommended to use N68 anti-wear hydraulic oil in summer and N46 anti-wear hydraulic oil in winter.
It is essential to ensure the cleanliness of the hydraulic system. Most hydraulic system failures occur due to unclean oil.
Before filling oil, clean the oil tank to ensure there are no impurities in the tank.
After cleaning the oil tank, fill it with fine-filtered (10um) hydraulic oil. See the “Technical Parameters of Machine Tool” for the oil tank capacity of the machine.
Note that newly purchased hydraulic oil is not clean hydraulic oil.
After the oil tank is filled for the first time and works for 500 hours, the tank must be cleaned and replaced with new, fine-filtered hydraulic oil.
In the future, the oil tank should be cleaned and replaced every 2000 hours.
It is not recommended to operate the press brake machine at low temperatures (below -5 ℃). If it must be used, the machine should run under no-load for a period of time. An oil heater can be installed in the circuit if necessary.
Under normal working conditions, the oil temperature should not exceed 70 ℃. In special environments, an oil cooler can be installed according to actual needs (the oil tank has an interface).
