Application of Mobile Trommel Screen JXSC Mining Process Equipment Trommel Screen are always used in processing minerals such as ferrous metals including hematite & magnetite And nonferrous metals including Lead, Zinc, Gold and Silver etc.  Quarry: suitable for screening and classifying gravel, clay, mountain meal, sand, etc.  Coal Industry: suitable for screening and classifying lump coal, coal dust, coal washing, etc.  Chemical, Mineral-selecting Industry: suitable for grading and classifying lump, powder substance, etc.  Metallurgy, construction and other industries http://www.jxscmine.com/