The working principle of the hydraulic pump station is as follows:
the motor pump rotates, the pump draws oil from the pump, converts the mechanical energy into the pressure energy of the hydraulic oil, the hydraulic oil is transferred to the cylinder or hydraulic motor of the four-column hydraulic machinery by the hydraulic valve through the integrated block (or valve combination), then controls the direction change of the hydraulic press, the size of the strength and the speed of the speed, and promotes the work of various four-column hydraulic machinery.