Air jet sieving

We supply a complete air sieving unit that is integrated into the product module of our plant. At its heart is an air jet sieve – a special sieve housing in which a defined fine sieve (e.g., 500 µm mesh size) is installed horizontally. A controlled air flow is generated from below using a high-pressure blower, which sucks or blows the fine particles through the screen. The coarser particles (e.g., film scraps ~1–5 mm) cannot pass through the screen openings due to their size; they remain on top and are discharged at the edge. The fine dust – the black mass, usually <100 µm particle size – is carried by the air flow into the downstream cyclones and filters, where it is separated and collected. We therefore offer recyclers/OEMs a closed system: a fine screen with a defined separation efficiency (often around ~500 µm) plus an air conveyor system and dust separation. This system runs continuously: the material is pneumatically fed onto the screen and the air flow circulates in a cycle (the air is returned after filtering to avoid emissions). Our offer includes all the hardware – screening machine, blower, cyclone, filter, piping, valves – fully assembled. For the operator, this means that they receive high-purity black mass in the collection container and, separately, a residue of foil flakes, which is further processed (in our case, this residue goes to another zig-zag screening process to separate plastic from metal foils). Air jet screening is a key component in separating the fine recyclables from the rest of the material stream – we offer it as a robust, low-maintenance module in our recycling line.