HLDS Multi-plate Sludge Dewatering Screw Press belongs to the screw press,Website:http://www.hollyhb.com, it's clog-free and ... in contrast to the centrifuge, it is a cutting edge sludge dewatering machine.Main Features ♦ Exclusive pre-thickening device enables a wide ... , easy to handle oily sludge♦ Low running speed, low noise, low power consumption, 1 /8 of Belt Press and 1 /20 of ...