
second hand stone mining mill portable ball mill wikipedia. the ball mill can grind various ores and other materials either wet or dry. there are two kinds of ball mill, grate type and overfall type due to different ways of discharging material. many types of grinding media are suitable for use in a ball mill, each material having its own,which grinding media to use in a ball mill making,a ball mill is a type of grinder used to grind, blend and sometimes for mixing of materials for use in doing so, the solid particles in between the balls and ground are reduced in size by impact. many types of grinding media are suitable for use in a ball mill, each material having its own specific properties and advantages.