cylindrical classifier machine bl m1363mq1363mq1380a learn more. 3.Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills. 4.Ball mill is an efficient tool for grinding many materials into fine powder. 5.The ball mill is used to grind many kinds of mine and other materials, or to select the mine. 6.Ball mill