Ball mill grinding media and milling media are used in milling or grinding processes to crush grind and mill various materials MSE Supplies offers a wide variety of grinding media and ball milling media with the package size ranging from kg and tons For help in selecting the right milling media for you please read applications of milling Media to media contact for rods mills is linear rather than point to point as with balls and are much heavier The larger feed tends to separate rods at the feed end such that larger particles are preferentially abraded This leads to a narrower size distribution and significantly less slime compared to ball mills