DE
EN Selection of grain size
The grain size mainly influences the material removal rate and the quality of surface respectively cutting edge. It also affects the lifetime of the grinding tool. On the one hand it is a matter of fact that the material removal rate is higher if a coarser grain size is chosen. A finer grain size, on the other hand, improves the surface. We would be pleased to assist you on this individually – simply call us +49 2737 3573 and we will discuss how to work most efficiently.
Standard grain sizes for diamond and CBN
| FEPA Standard | US Mesh | Nominal mesh-size | Height of coating diameter |
| D 1182 | 16/20 | ||
| D 1181 | 16/18 | 1180-1000 µm | |
| D 1001 | 18/20 | 1000-850 µm | 2,30 mm |
| D 852 | 20/30 | 2,00 mm | |
| D 851 | 20/25 | 850-710 µm | |
| D 711 | 25/30 | 710-600 µm | |
| D 602 | 30/40 | 1,50 mm | |
| D 601 | 30/35 | 600-500 µm | |
| D 501 | 35/40 | 500-425 µm | 1,30 mm |
| D 427 | 40/50 | 1,00 mm | |
| D 426 | 40/45 | 425-355 µm | 1,00 mm |
| D 356 | 45/50 | 355-300 µm | 0,80 mm |
| D 301 | 50/60 | 300-250 µm | 0,70 mm |
| D 252 | 60/80 | 0,60 mm | |
| D 251 | 60/70 | 250-212 µm | |
| D 213 | 70/80 | 212-180 µm | 0,56 mm |
| D 181 | 80/100 | 180-150 µm | 0,45 mm |
| D 151 | 100/120 | 150-125 µm | 0,40 mm |
| D 126 | 120/140 | 125-106 µm | 0,35 mm |
| D 107 | 140/170 | 106-90 µm | 0,30 mm |
| D 91 | 170/200 | 90-75 µm | 0,25 mm |
| D 76 | 200/230 | 75-63 µm | 0,22 mm |
| D 64 | 230/270 | 63-53 µm | 0,20 mm |
| D 54 | 270/325 | 53-45 µm | 0,18 mm |
| D 46 | 325/400 | 45-38 µm | 0,15 mm |
| D 30 | 38-25 µm | 0,10 mm |
