from web site
Tumbling media is the secret behind flawless surface finishing in vibratory deburring machines. It works by creating controlled friction that cleans, polishes, and smooths parts efficiently. Choosing the right media—whether ceramic, plastic, steel, or organic—depends on your material, desired finish, and part design. From aggressive deburring to fine polishing, the right shape and size ensure precision without damage. Selecting optimal tumbling media not only boosts productivity but also delivers consistent, high-quality results every time.
https://vibra.com/choosing-tumbling-media-for-vibratory-deburring-machines/