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US milling equipment manufacturer, Munson Machinery, has introduced a new SCC-15-SS Screen Classifying Cutter. The new model includes a double-width infeed hopper designed to accommodate the conveyor-feeding of irregular shapes and sizes of hard, soft and fibrous materials by gravity. Typical materials that are frequently processed through the equipment include bulk foods, spices, sugar cane and hemp stalks, tobacco, coal, minerals, and more. The 76 cm wide hopper leads the materials into a smaller 38cm wide part, positioned over a 279mm wide diameter solid-mass rotor containing staggered parallelograms. Each shape holds two cutter tips that are 12.7mm wide and can be easily replaced with just one machine screw. Once materials enter the infeed chute, they undergo consecutive mechanical shearing against bed knives until they reach a size suitable for passing through bedscreen apertures. This process results in uniform size reduction from coarse down to 20 mesh with minimal fines or heat generation, at high rates with reduced energy use.

The bedscreens have perforations ranging from 0.8mm to 51mm in diameter and can be as large as 76 mm square. The shaft's rotation speed spans from 30 to 3600 RPM, producing up to 14 m3/h, depending on application.