A proprietary mixer piggybacked on a 10-in. hot-melt extruder is making hollow HDPE profiles containing 40% wood flour. Advanced Extruder Technologies (AET), Elk Grove Village, Ill., developed the continuous mixer and combined it with its Advantage Series hot-melt extruder for direct compounding and extrusion. The line doesn't require predried wood flour, since it pulls a vacuum between the mixer and extruder, followed by more vacuum vents on the extruder. AET has delivered two such mixer/extruder combinations for direct wood-plastic extrusion and a third is on order. Nominal capacity is 5000 lb/hr, but output is limited by the ability to cool the profile, depending on its formulation and design.
Advanced Extruder Technologies
2363 Devon Ave. Elk Grove Village, IL 60007
Phone (847) 238-9651 Fax (847) 238-9654