| REcommended operating parameters | ||
| The minumum diameter of the drums (mm) | Maximum effective working angle | Opportunity to working in trough |
| 250 | 30° | YES |
| B mm | b mm | t mm | |
| Herrningbone 35° divided | 300 ÷ 500 | 230; 285 | 250 |
| 500 ÷ 650 | 380; 430 | 300 | |
| 500 ÷ 650 | 526; 580 | 300 | |
| 800 | 726 | 250 | |
| 1000 | 875 | 220 | |
| 1200 | 1020 | 300 |
