| Order number: | 07.5000.00 |
| Price: | View price |
| Grinding reports: | Exemplary grinding reports |
| Material | Main component of the material | Density g/cm³ | Abrasion resistance | Used for grinding material |
| Agate | SiO2 | 2.65 | good | soft to medium-hard samples |
| Sintered corundum | Al2O3 (99.7%) | 3.8 | fairly good | medium-hard, fibrous samples |
| Silicon nitride | Si3N4 | 3.25 | excellent | abrasive samples, iron-free grinding |
| Zirconium oxide | ZrO2 | 5.9 | very good | fibrous, abrasive samples |
| Stainless steel | Fe – Cr – Ni | 7.8 | fairly good | medium-hard, brittle samples |
| Tempered steel | Fe – Cr | 7.9 | good | hard, brittle samples |
| Hardmetal tungsten carbide | WC | 14.3 | very good | hard, abrasive samples |
| Grinding bowl/ Useful capacity (grinding material) |
20 ml 1 – 9 ml |
45 ml 3 – 20 ml |
80ml 10 - 30ml |
| Balls diameter | |||
| 20 mm | 5 | ||
| 15 mm | 7 | 10 | |
| 10 mm | 10 | 18 | 25 |
| 5 mm | 80 | 180 | 250 |
| Grinding bowl/ Useful capacity (grinding material) |
20 ml 1 – 9 ml |
45 ml 3 - 20 ml |
80 ml 10 – 30 ml |
| Material | |||
| Zirconium oxide | 30 g | 70 g | 100 g |
| Stainless steel / tempered steel | 40 g | 90 g | 150 g |
| Hard metal tungsten carbide | 80 g | 200 g | 300 g |
Grinding balls with diameter 3 mm and smaller must be weighed out. The above table provides you with the necessary weight to be included per grinding bowl.
The quantity of grinding balls can be reduced by up to 15%; however, increased wear can then be expected. The specified number/mass of balls per bowl is the minimum quantity; depending on the material behaviour, it may be necessary to increase this.
In normal cases, grinding bowls and balls of the same material are used. To shorten the grinding time, larger or heavier balls with a higher density can be used, e.g. tungsten carbide balls in a steel bowl or zirconium oxide balls in a silicon nitride bowl.
