The disc pulverizer machine is available with disc diameter from 300 to 800 mm. This pulverizer machine is high speed, precision grinders for the processing of medium hard, impact resistant and friable materials. The material to be pulverized is introduced through the centre of a vertically fixed grinding disc which is mounted concentrically with an identical high speed rotating disc. Centrifugal force carries the material through the grinding area and the resulting powder is collected with a blower and cyclone system. Plastic pulverizer mill machine / plastic grinding machine can be equipped with one piece grinding discs or grinding segments.