Centrifugal impact mill delivers precise particle size control for industrial applications

The CIM-34-MS centrifugal impact mill from Munson Machinery is designed for high-speed coarse grinding, de-agglomeration, and fine grinding of friable materials. The mill processes up to 5 cubic feet (142 liters) per minute, delivering a narrow particle size distribution without the need for screens.

The CIM-34-MS operates using high-speed rotation of an inner disc, creating centrifugal force that accelerates bulk material from the central inlet across five intermeshing rows of rotating and stationary pins. This design ensures efficient de-agglomeration and precise particle size control.

Material retention in the mill is minimal, and continuous airflow keeps the material cooler compared with other milling systems. Operators can adjust the infinitely variable rotor speed from several hundred revolutions per minute to 5,400 rpm, providing flexibility for coarse grinding or fine grinding down to 325 mesh.

The mill’s interior features smooth surfaces with no crevices, while hinged, vertically oriented outer discs provide unobstructed access for rapid cleaning. The CIM-34-MS is available in 34-inch (864 mm) diameter mild steel construction, with additional models offered in 8, 18, and 24 inches (203, 457, and 610 mm) and motors ranging from 5 to 125 horsepower (4 to 93 kilowatts).

Industrial applications include grinding ceramic filter media, chalk, coal, friable resins, dry clay, gypsum, pigments, and powdered metals. Sanitary stainless-steel models support bulk pharmaceuticals, nutraceuticals, flour, fish food, grains, spices, salt, sugar, and contamination-sensitive chemicals.

This piece was created with the assistance of generative AI tools and was edited by our content team for clarity and accuracy.