Fit to the product
Record the carrier chemistry, solids, feed-size or agglomerate state, rheology, target distribution and any color, purity or contamination restriction.
Wet-grinding media / RFQ questions
Choose grinding media and bead size from the product, mill and target together.
A target particle size does not select a bead by itself. Product chemistry, incoming agglomerates, rheology, contamination limit, wear behavior, separator and mill geometry must remain in the same review.
01 / ProductChemistry, rheology, feed state and contamination limit
02 / MillGeometry, agitator, separator and allowed media range
03 / ProofComparable trial, wear review and supplier confirmation
Keep the variables connected
A media proposal must explain three linked fits.
Changing media can alter grinding behavior, separation, wear, product contamination and temperature behavior at the same time. Review the whole working combination.
Fit to the mill
Ask the equipment supplier to confirm the candidate media material, diameter range, density and shape against the chamber, agitator and separation arrangement.
Fit over the campaign
Review wear, bead breakage, separation stability, product carryover, cleaning and the inspection or replacement method—not only the first sample result.
Selection route
Turn a media name into a comparable trial plan.
Keep the feed, machine state, operating mode, sampling and acceptance method consistent enough to understand what actually changed.
01→
Lock the feed basis
Identify one representative formulation, pre-dispersion state and incoming particle or agglomerate condition.
02→
Screen candidate combinations
Review chemistry, contamination, wear, geometry and separator limits with the relevant suppliers.
03→
Run a documented trial
Record the mill configuration, media condition, batch route, temperature history, samples and measurement method.
04
Confirm the production choice
Compare target result, product quality, wear and operating stability before supplier approval for the intended duty.
Media-selection RFQ checklist
Bring the inputs that make a media trial comparable.
The final choice requires representative sample testing and confirmation from the equipment and media suppliers. Use this list to make that review specific.
Open the process brief- 01Product chemistry
Carrier, solids, additives, pH or other relevant chemistry, plus any known reaction with contact materials.
- 02Feed state
Pre-dispersion method, largest expected particles or agglomerates, distribution data and sampling method.
- 03Target & test
Required distribution or fineness, measurement method, sample preparation and other quality conditions to preserve.
- 04Rheology & temperature
Flow behavior at the mill inlet, how it changes during processing and the permitted product-temperature window.
- 05Contamination & wear
Restricted elements, color or purity concerns, acceptable wear evidence and media inspection expectations.
- 06Mill & separator
Candidate chamber, agitator, separation concept, operating mode and supplier-confirmed media envelope.
Buyer decision FAQ
Media selection is a product-and-machine decision.
Can bead size be selected from target particle size alone?
No. The feed state, target distribution, product rheology, media material and density, mill geometry, separator, contamination limit and wear behavior must be reviewed together.
Does smaller grinding media always produce a better result?
No universal direction should be assumed. Candidate fit with the mill and separator—and the resulting product condition—must be confirmed under representative, documented test conditions.
Why should media wear be part of the RFQ?
Wear can change bead condition, separation behavior and product contamination over a campaign. State the contamination limit and ask how the candidate will be inspected and confirmed.
What confirms the final media selection?
Use representative material testing with documented feed, mill, media, temperature, sampling and measurement conditions, followed by confirmation from the equipment and media suppliers.