There is a discharging grate plate installed at the discharging end, in the inner surface of the hollow shaft liner equipped with anti-spiral blades, it can overflow the ore pulp out of the ball and made the crude ore back to the mill. Typically, ball mill with cylinder diameter of 900-2100mm and motor power lower than 400kw adopts the high starting torque of Y series drive way and JR asynchronous motor drive way, in the middle connecting by reducer and coupling. Advantage: provide reasonable product selection and design,scientific workshop manufacturing arrangements, strict production process,on time delivery mill:http://www.mill-crushers.com/Ball_Mill_For_Mineral_Processing/Superfine_ball_mill.html contact:amychen email:chen19892011@163.com