... , Good air-tightness, Easy operation and maintain, Compact structure. filter press for sewage treatment plant(chamber filter press,hydraulic filter press) Main ... . 2. The automatically pull plate device is controlled by hydraulic system, and move quickly, work steady. 3. In ... machine frame use huge strength steel constructing. 4. Using hydraulic device press filter plate. Max. Pressure is 30Mpa, and the ...