SAG mill

SAG Mill - Semi-Autogenous Grinding Mill A semi-autogenous grinding mill, or Sag mill, is responsible for grinding materials from large chunks into small, usable pieces for processing. The Sag mill is usually part of the primary stage in the grinding process. Pieces of raw or fairly reduced materials are ground into smaller pieces for further processing or sorting. These machines are typically electrically powered, but have been modified from a variety of powering systems over the years.