wastewater mill UTN seriers. rotor double-roller vertical. Final grain size: 100 µm - 100 µm. Output: 60,000 kg/h - 480,000 kg/h. Motor power: 2,200, 4,000, 3,000 W. The Waste water Grinder from United Tech Machinery is a high torque, low rotating speed and double shaft grinder under water.