Mill (grinding) - WikipediaA mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting. Such comminution is an important unit operation in many processes. There are many different types of mills and many types of materials processed in them. .. SAG mills are essentially autogenous mills, but utilize grinding balls to aid in.sag mill types,SAG Mill Grinding Circuit Design - Mineral Processing & Extractive .Jun 6, 2016 . AG and SAG mills are now the primary unit operation for the majority of . to mill a broad range of ore types in various circuit configurations, with.
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