CERAMIC MICRO GRINDING MEDIA
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ZIRCONIA-BASED BEADS 　

 　

Composition

(wt%)

 ZrO2+HfO2 25.0

ZAL32

 　 Al2O3 30.0
　 　 SiO2 40.0
Remainder <5.0
　 　       Specific density               (can be adjusted  on request) ≥3.2g/cm3
　 　       Bulk density                (can be adjusted  on request) ≥1.9g/cm3
　 　 Mohs' hardness 7.0
　 　 Hardness (HV)  8.2 GPa
　 　 Fracture toughness, K1C 2.26 MPa*m1/2
　 　 Roudness ≥95%
　 　 Open porosity 0%
　 　 Colour  white
　 　 　 　 Surface finish

silky sheen
Standard Size Range (mm): (Other sizes on request) 　

Φ0.4-0.6; Φ0.6-0.8; Φ0.8-1.2; Φ1.4-1.7; Φ1.5-2.0; Φ2.0-2.5; Φ2.5-3.0……..Φ10.0-12.0

Properties:

 　 　 　 　 　
● Outstanding wear resistance. Through many comparison tests,it proves that the wear rate of ZAL32 is 1/8~1/15
     of some low unit cost alumina media and reach the same level of electro-fused zirconium silicate beads(specific
     density of 3.8 g/cm3),while having better crushing strength.
● Ideal density improves the grinding efficiency. Adjustable density enables the beads to suit various types of bead
     mills.
● Economic price.
● Using this inert grinding media produces clean mineral surfaces that improves floation and leach recoveries
    compared  to grinding with conventional steel media.
Applications: 　 　 　 　
● Mining, Calcium Carbonate, Titanium Dioxide, Minerals…
The combination of low consumption rate, high grinding efficiency and low unit cost enables our new ZAL ceramic 
micro beads to be an ideal grinding media for high energy & efficient stirred mills applicable for large scale
commercial mining  applications.

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