Ball Mill is the equipment for grinding ores or other materiel with a certain particle size into smaller size. Ball mill is mainly composed of feeding part, discharging part, rotary part and driving part which includes reducer, small drive gear, electrical machine and electronic control. 2.Application Of Haiwang 48-65mesh Grinding Ores Or Other Materiel Grate Grinding Ball Mill Widely used in electricity power,ferrous metal and non-ferrous metal,chemical,and building industries.Grate ball mill grinding products sizes are 0.3~0.2mm or -0.074m size,quality score is 45%~65%.