Power consumption is 30% less than machines haying fixed displacement pump.
Cooling water requirement of hydraulic oil is between 1/3 and 1/2 of fixed pump requirement due to without extra hydraulic oil overflow. Therefore there is longer life for the seal of pump than fixed pump.
On the basis of proportional technology, the combination of electrical and sensor technology reaches the success of dosed loop variable pump. Through the control of pressure and flow by proportional valve, and continual monitoring on pressure and flow by pressure sensor and plate angle sensor, it leads precise pressure and flow to save energy.
There is great characteristic curve on input voltage & pressure and almost direct proportion on the characteristic curve on input voltage & flow. Closed loop control is adopted so pressure and flow can be adjusted well by voltage. Energy saving become great due to high precision control and high respond.