How much media should I use?

If you have internal separation (i.e. gate and screen deck), then 4-to-1 (media to parts) is minimum in order to push the parts out of the machine. If it is a batch process, then 3-to-1 is average. If part impingement is a concern, the media-to-parts ratio needs to increase to an acceptable level of part-on-part dinging or damage.