We offer a complete product line of ceramic grinding media.

King's MineMate® CM-300 Ceramic Beads

King's beads


The long-life time of King's MineMate® CM-300 Ceramic Beads are new technical breakthrough, which enables mill users to significantly reduce the long-term operational cost with any fine or ultrafine grinding tasks.

It is recommended to be used in energy-moderate mills, especially suitable for the projects with strict control on long-haul OPEX, with sufficient experience on fine or ultrafine grinding, or with relatively harder minerals to grind.


Metallic minerals like copper, silver, nickel, gold, zinc, PGM, lead, etc.

Non-metallic minerals like graphite, calcium carbonate, kaolin clay, zirconium silicate, titanium dioxide, gypsum and quartz, etc.


Density g/cm3 >3.0
Packing density g/cm3 >1.8
Vickers hardness HV5 >850
Roundness* % >99
Standard size** mm 0.4 - 10 (any size breakdown)
Chemical composition   Al2O3, SiO2 and others

* Subject to a max. -3% points deviation for different product sizes

** Special sizes are available upon request