... power computations ,low invest, high efficiencyThe machine use the pump to pull the fresh fowl manure, cow dung, ... by the screw , the rotary speed of the machine can reach 45r/min , within the press of ... speed , the material will be dewatered by the machine , and the water will enter into the pool ... through screen. . after this machine , water contain in manure is less than30- 35 ...