1)High efficiency; 2)Energy saving; 3)Environment protection. Dry powder Ball Press Introduction Dry Powder Ball Press:Dry powder ball press is mainly used for anhydrous materials of non-ferrous and ferrous mineral powder briquette /ball making system before the smelting furnace, such as coal,coke powder, coking coal, coal ash, coal mud, iron ore concentrates, chromate ore concentrates, mgo power ...