Alibaba offers 931 gold ball mill machine products. About 0% of these are Grinding Equipment, 74% are Mine Mill, and 0% are Wood Pellet Mill. A wide variety of gold ball mill machine options are available to you, such as local service location, key selling points, and condition.
20121126&ensp·&enspA Ball Mill grinds material by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground. The rotation is usually between 4 to 20 revolutions per minute, depending upon the diameter of the mill.