Hydraulic system is the main power force of hydraulic oil press machine, it includes transmission shaft, turbine, worm gear, gear pump, high pressure pump, overflow valve; super high pressure safety valve; hand-operated valve; seamless steel tube; pipeline connect and other spare parts. This machine adopts the advanced power pack of the world, and compared with two plunger pump, it is faster, higher pressure and can resist higher temperature, it can continue working when the oil temperature is above 65 but needn’t cooling unit.