Media Selection – Learn to Choose the Best Media for Tumbling Operation
Types of Polishing Media for Surface Finishing Polishing media are rough materials used in vibratory, centrifugal, or barrel finishing. They help to remove burrs, smooth, and polish metal, plastic, or composite parts. The choice of media depends on the material being processed, desired finish, and machine type. 1. Ceramic Media Composition: Aluminum oxide or silicon carbide bonded with ceramic Shape: Triangles, cones, cylinders Best for: Heavy de-burring, fast material removal (steel, titanium) Finish: Semi-smooth (Ra 0.5–1.2μm) Pros: Long lifespan, aggressive
