Extrusion: Gravimetric Blending & Line Control
Moretto’s new 7-component blender with extrusion weight control.
New from Moretto is the DLK Gravico continuous loss-in-weight blender with extrusion weight control to maintain consistent extrudate weight per linear unit. Suitable for film, pipe, profiles, and sheet, the system meters up to seven components. Its Navigator 9000 touchscreen control manages extruder hauloff and screw-speed control, as well as air-ring and gauge control. It samples 4000 times/sec while handling throughputs up to 4400 lb/hr.
Related Content
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Understanding Melting in Single-Screw Extruders
You can better visualize the melting process by “flipping” the observation point so the barrel appears to be turning clockwise around a stationary screw.
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The Importance of Barrel Heat and Melt Temperature
Barrel temperature may impact melting in the case of very small extruders running very slowly. Otherwise, melting is mainly the result of shear heating of the polymer.
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What to Know About Your Materials When Choosing a Feeder
Feeder performance is crucial to operating extrusion and compounding lines. And consistent, reliable feeding depends in large part on selecting a feeder compatible with the materials and additives you intend to process. Follow these tips to analyze your feeder requirements.