... grinder ) is used for grinding the barite, limestone, kaolin, ceramic, and slag, etc., below the Mohs hardness of and ... -odd sorts of non-inflammable and non-explosive stuff in the trades of mining, metallurgical industrial, chemical engineering ... 3. Working principle of smal stone ball grinder mill In the main frame, a 1000-1500kg high pressure spring ... -8.0 smal stone ball grinder mill made in china