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What is twin screw extrusion ?
The twin screw extrusion process developed by Clextral over the past 50 years enables continuous production of homogenous compounds for the food industry, paper and plastics and chemical industries, using natural or synthetic raw materials.
The active part of the machine consists of 2 identical co-rotating and intermeshing screws, hence the name "twin screw extruder".
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The screws are mounted on shafts, supported by bearings and rotate inside a fixed closed housing called "barrel".
To adapt this equipment to different industrial applications, the screws, which perform most of the work of transporting, conveying, mixing, compressing, kneading or shearing of raw materials, have been designed to be totally modular. The screw segments are stacked one beside another on a splined shaft. Their composition can be rapidly modified depending on the products to be processed and the final product desired.
Twin screw technology offers the advantages of a continuous process that is both flexible and easy to automate.
The multifunctionality of this technology results in a compact design of the equipment, reduces the investment costs, often uses far less water and allows the use of greater diversity of raw materials.
This continuous processing machine has multiple functions : conveying, melting, shearing, mixing, cooking, cooling, defibering, washing, bleaching, shaping... depending on the industrial application.
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