The cyclone includes a sealing unit for the drum dryer outlet. All material separated from this separator is conveyed by screw conveyors to the hygrometer probe. Exhaust from this separator is directed to the secondary separator.
| TYPE | WIDTH | LENGTH | HEIGHT | SEPARABILITY |
| CYKBS6-1900 | 1 900 mm | 3 000 mm | 3 900 MM | 92% |