A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing . A ball mill consists of a hollow cylindrical shell rotating about its axis. . the ball mill is an ancient one, but it was not until the industrial revolution and the invention of steam power that an effective ball milling machine could be built.
An introduction to particle size reduction with ball milling. . To grind a sample in this device, you should already have reduced the particle size to less than 10 mm, . A cover is placed on the bowl and then the bowl is mounted in the machine.