One of the key phases in plastics recycling involves the separation of thin film from thicker shredded material. The most common example is the removal of labels from PET bottles. The thick PET flakes need to be collected, while the labels need to go.
The Zig-Zag Aspirator uses an air flow to suck up the lightweight labels. The heavier plastic pieces fall to the bottom. The separation of materials could not be easier.
Another advantage is that the shredded material is dust free, which is a huge gain in further processing.