What does RPM stand for? - AbbreviationsFind out what is the full meaning of RPM on Abbreviations! 'Revolutions Per Minute' is one option -- get in to view more The Web's largest and most authoritative acronyms and abbreviations resource. . Radical Psycho Machine.grinder machine abbreviations,Mill (grinding) - WikipediaA mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting .. The discharge die gap a of the grinding machine is used for the ground solid matter in this . SAG is an acronym for Semi-Autogenous Grinding.