An economy-grade grinding ball for ceramic body preparation and general non-metallic mineral milling. Final suitability depends on the material, mill, required throughput and acceptable media wear.
| Al₂O₃ Content | Typically ≥ 68% |
|---|---|
| Density | Approx. 2.95 – 3.05 g/cm³ |
| Hardness | Approx. Mohs 8 – 9 |
| Water Absorption | Public references vary from 0 to ≤ 0.2% |
| Available Shape | Ball |
| Common Size Range | 20 – 70 mm |
| Typical Color | Gray to light yellow |
| Packing | Commonly 25 kg bags; pallet or bulk options by quote |
| FOB Port | Qingdao, China |
Reference specifications compiled from public manufacturer materials; they are not a quotation or batch certificate. Available sizes, tolerances, packing and test documents will be confirmed for the selected manufacturing partner before order.
68% alumina is generally positioned as an economy grinding-ball grade. It can be relevant when bulk grinding cost matters more than achieving the density and wear performance of higher-alumina media.
Choose 68% when: the duty is ceramic body or general mineral milling, the mill accepts larger balls, and the process can tolerate the supplier-confirmed wear and chemistry.
Consider a different grade when: longer media life, higher density, smaller media, color control or tighter contamination limits matter (→ compare 75%, 92% or an actual 95% specification).
Ball milling of clay, feldspar, quartz and related raw materials for ceramic body preparation where an economy media grade is acceptable.
Commonly referenced for conventional ceramic tile body grinding. Confirm required cycle time, ball charge and acceptable wear against the mill conditions.
General milling of feldspar, quartz, kaolin and other non-metallic minerals where the delivered chemistry and wear level fit the finished product.
A candidate for users evaluating a manufactured ceramic ball in place of natural pebbles. Test charge, power draw, wear and product quality before full conversion.
Public product ranges commonly cover Ø 20 – 70 mm. Confirm exact diameters and tolerances in the quote.
Share the mill type, feed material, target fineness and current media so the proposed grade and charge can be checked.
25 kg bags are common. Palletized or bulk packing, net weight and container loading are confirmed per offer.
Tell us your application, quantity and destination. We'll acknowledge your inquiry within one business day, then confirm parameters, pricing and lead time with the selected supply partner.
Get a QuoteA step up in density from economy media for ceramic and mineral milling.
View 75%Higher-density media for fine grinding and applications where iron pickup matters.
View 92%Higher alumina content for processes that require a supplier-confirmed 95% chemistry.
View 95%