Бутлуур машин mills designed for long life and minimum maintenance overflow ball mill sizes range from 5 ft. x 8 ft. with 75 HP to 30'''' x 41'''' . and as much as 30,000 HP. Larger ball mills are available with dual pinion or ring motor drives. the most important being the Marcy and the AllisChalmers . ... Хэбэй Chengyuan Pipe ...