Our one-of-a-kind zig-zag air classifier distinguishes light impurities from heavy plastics and is frequently used in our PET bottle recycling operations. The air classifier does a fantastic job of partially drying the material stream in addition to being used for separation. Material bottles are crushed and granulated into flakes that contain PET plastic as well as impurities like paper and plastic labels in PET bottle recycling. Because they are less in weight, the zig-zag air classifier can effectively eliminate these containments.