... to wash cores such as manganese ore, iron ore, limestone, tungsten ore, tin ore and silica sand ore. According to silt content, grain ... level of cores, double-screw washer, troughed ore washer or cylindrical ore washer can be selected. Sand and gravel ... production of different specifications. Features (1)Log Washers ideal for scrubbing difficult materials such as tough insoluble clays, conglomerates, ...