The mechanical and structural features have some technical design expedients that ensure a processing capacity of up to 15 ton/h of presorted municipal or industrial waste and an output product size <30mm. The larger-diameter rotor has a larger grinding surface and thus a greater processing capacity; the ergonomic design ensures easier accessibility and a consequent reduction in maintenance time, also aided by a simplified screen mounting system. Important structural features ensure an airtight seal around the rotor and eliminate obstructions caused by material outflow.