Grinding media calculator.
Compare media performance.
Two engineering tools to support media selection and procurement, calculate the required charge for your chamber, then compare the relative wear performance of each composite across its service life.
Estimate only, actual charge depends on bead size and mill design. Ask us for an exact figure →
Less wear,
cleaner product,
lower cost.
Relative wear rate
LOWER = BETTERThe whole range, side by side
Want the exact charge and a price?
Send your mill details and material and we’ll confirm the media, size, charge
and AU/NZ pricing.
FAQ
Frequently asked questions
How do you calculate the grinding media charge?
Media charge (kg) = chamber volume (L) × fill level (fraction) × bulk density of the media (kg/L). For example, a 10 L bead mill at 80% fill with zirconia beads of about 3.85 kg/L bulk density needs about 31 kg.
What fill level should a bead mill use?
Horizontal bead mills typically run at 70–85% of the net chamber volume; ball mills typically run at 30–50% of the mill volume. Follow the mill manufacturer’s recommendation.
Why does the media type change the kilograms needed?
Different media have different bulk densities: zirconia is much denser than zirconium silicate, alumina, steatite or glass, so the same fill volume needs more kilograms of zirconia.
Can you check my calculation and quote the media?
Yes. Email sales@kpm.com.au or call (02) 9672 3222 with your mill type, chamber volume, material and target fineness and we will recommend the grade, size and charge with Australia/New Zealand pricing.