Aurora Kunststoffe, a member of MOL Group, is demonstrating how plastic processors’ production waste can be recycled and upcycled profitably.
This producer of recompounds uses rejected parts accumulated from plastic components manufacturing as primary raw material and processes it into recycled, new-product-quality plastic compounds.
In manufacturing technical plastic parts, typically there is approximately a five percent rejection rate. Aurora Kunststoffe purchases this production waste, then examines the precise composition and varietal purity.
Once they pass quality control, the single-variety plastic parts are ground, fed into the compounding process and pelletized. The result is pellets mainly based on PA6, PA66, PA11, PA12, POM, PP, PC, and PC-ABS.
To accomplish this, Aurora Kunststoffe uses ZSK twin screw extruders from Coperion, including three ZSK 45 Mc18 twin screw extruders.
Coperion designed each of these three ZSK 45 extruders individually for Aurora Kunststoffe’s requirements, equipping them with ZS-EG twin screw side devolatilization units and special wear protection for product-contact parts.
Norbert Büter, Coperion Sales Manager, “When recycling plastics, it is necessary to adapt the process parameters and recipes to the various raw materials. With their flexibility and high torques, ZSK twin screw extruders are optimally suited for processing even the most difficult raw materials to very good product quality – and they do it at throughputs that are economical.”
“By devolatilizing using ZS-EGs, not only are unwanted gases removed; operational safety of the entire vacuum system is increased. This applies especially to even very volatile viscosities.”
Plastic waste comes to Aurora as part of its unique Aurora-Lean-Logistics concept, consisting of Aurora’s own fleet of about 60 semi-trailers and a box concept for perfecting single-origin collection.
