NETZSCH-Beads®
ZsBeads
Zirconium silicate grinding beads
ZsBeads are sintered zirconium silicate grinding media with a high sphericity. In contrast to grinding beads that are produced in a melting process the ZsBeads are almost free of bubbles and pores. These properties increase their wear-resistance and prevent breaking. They are available in different fractions ranging from 0.6 mm to 1.8 mm.
Available standard qualities
| Type | Fraction [mm] |
|---|---|
| ZsBeads 0.7 | 0.6 - 0.8 |
| ZsBeads 0.9 | 0.8 - 1.0 |
| ZsBeads 1.1 | 1.0 - 1.2 |
| ZsBeads 1.3 | 1.2 - 1.4 |
| ZsBeads 1.5 | 1.4 - 1.6 |
| ZsBeads 1.7 | 1.6 - 1.8 |
| ZsBeads 1.9 | 1.8 - 2.0 |
| ZsBeads 2.1 | 2.0 - 2.2 |
| ZsBeads 2.3 | 2.0 - 2.5 |
Chemical composition
| about (in weight %) | |
|---|---|
| ZrO2 | 64 |
| SiO2 | 33 |
| Others | 3 |
Mechanical properties
| Density | 4.0 kg/l |
| Bulk density | ~ 2.5 kg/l |
| Vickers hardness | 900 HV |
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