RDF Air separation
At the picture we show a speed-up conveyor of a Walair drum separator with a screened RDF fraction 20/300 mm. Through air separation with a Walair drum separator the heavy fraction is removed from this fraction. The heavy fraction consists of metals, stone, glass, etc. etc. If the heavy parts are not removed, the knives of the secondary shredder will be damaged. At the second picture we see a detail of the heavy parts.