... calcite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate applicationUltra-fine grinding machine is a powder processing equipment, which is mainly suitable ... under negative pressure.technicalModel8021Power50kwFeeding size1-5mmProduct fineness500-8000meshDealing capacity800kgYield95% ultrafine grinding machine mining machine used in calcite, diatomite, barite, gypsum, alunite ...