By accurately measuring material throughput, gravimetric extrusion control can compensate for material and process variations and provide more consistent end product quality.
By accurately measuring material throughput, gravimetric extrusion control can compensate for material and process variations and provide more consistent end product quality. This technology is most often used in conjunction with single screw, flood-fed extruders. The most common applications are: profile extrusion, cast sheet, blown film, cable coating, laminating, precision tubing, and pipe extrusion. Gravimetric extrusion control is virtually a necessity for multi-layer coextrusion systems. The K-Tron package offers a fully integrated feeder and control solution with mass flow or weight per length control, allowing the processor to set the extruder speed from the K-Tron interface. The feeders serve a dual purpose, both gravimetrically controlling the recipe for the layer and acting as a mass flow sensor.