The plastic recycling granulator unit can be cleaned, broken waste polyethylene, polypropylene plastics processing into particles, as once again the processing of raw materials. The hard gear reducer manufacturing 20CrMnTi alloy steel screw, barrel made of 38CrMoA1A alloy steel after nitriding extruder the unit speed, long service life. The granulation unit composed of main and auxiliary extruder, sink, alloy knife cutting machine. Can also be based on user needs with the drying blower.