The RingExtruder’s technology is based on 12 screw shafts, arranged symmetrically in a ring rotating in the same direction, each on its own axis. This composition largely compensates the spreading forces known in multi-screw extruders and therefore reduces barrel and screw wear.

We have engineered and patented the RingExtruder RE® for shear-sensitive continuous compounding of rubber, degassing of post-consumer PET-bottles in PET bottle to bottle recycling and the challenging mixing of adhesives . The RingExtruder XPV Series is our latest technology which has an improved cooling system.