... working pressure1250KNpump rated working pressure25Mpathe maximum working pressure1500KNoil pump Maximum working pressure31.5Mpaopening height220,300 (change the ... Four-column hydraulic special machine, pressure method is downward shift.The max pressure of this machine is 150T, ... size, light weight, simple structure, low noise. the pressure is stable, easy to operate, no installed base, good ...