Media control

Media Life Cycle Analysis

Abrasive media is a consumable process tool. As it wears, the cut rate, surface finish, lodging risk, and cost per batch all change.

Wear rate Replenishment Size distribution Cost per batch

Why media drift matters

The same machine can change behavior as media wears.

Worn media becomes smaller, smoother, and less aggressive. It may begin entering holes or slots that were safe during the original process trial.

Rounded worn media removes burrs more slowly and may require longer cycles to hit the same edge condition.

As size distribution shifts downward, media can jam in holes, slots, threads, or undercuts.

Media carryout, attrition, breakage, and separation losses can change the real cost per finished batch.

Metric	How to measure	Action trigger
Media weight loss	Weigh a known media charge before and after a defined number of cycles.	Increase replenishment when cut rate falls or compound loading rises.
Size distribution	Sieve or sort a sample by size class.	Remove undersize media before it can lodge in part features.
Carryout loss	Track media removed with parts at separation.	Improve screening, rinse handling, or operator work instructions.
Finish trend	Compare burr height, edge radius, and roughness over time.	Refresh media or adjust cycle before parts drift out of spec.

Record starting media charge, add media by weight or volume on a schedule, remove undersize media, and connect media condition to Surface Roughness Measurement. For incoming checks, use Abrasive Quality Control.