Diamond grinding wheels
Concentration of diamond powder
| Concentration (C) | Percentage volume | Carats per m3 | Gramm per m3 |
| 25 | 6.25 | 1.1 | 0.22 |
| 40 | 10 | 1.76 | 0.352 |
| 50 | 12.5 | 2.2 | 0.44 |
|
75 |
18.75 |
3.3 |
0.66 |
|
100 |
25 |
4.4 |
0.88 |
| 125 | 37.5 | 5.5 | 1.32 |
| 150 | 43.75 | 6.6 | 1.54 |
The content of diamonds in the grinding rim depends on the application.
When a good surface finish is demanded lower concentrations (20 - 50) in combination with finer diamond powder are required.
Where rapid stock removal of tungsten carbide or hardened steel is intended a concentration of 75 to 125 is usually selected.
Concentrations of up to 150 are used for profile grinding wheels and cylindrical wheels which have a small contact area.