EBC 40 extruder |
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customer. Flexibility is the key word at Comac— but a flexibility that does not exclude specialization.“ We can configure a line highly optimized for a single product, maximizing efficiency and quality, or maintain the ability to process several different products, accepting a compromise in pure performance while gaining flexibility”, explains Andrea Della Vecchia, Area Sales Manager.“ And the two approaches are not irreversible: if a customer starts with a flexible line and later wants to dedicate it to a single product, we can always intervene to optimize it in that direction”. The company’ s real strength, however, lies in the fact that everything is produced within the Comac facility: barrels, screws, shafts, and |
screw elements are all designed and machined in-house. This ensures full control over steel grades— selected according to wear resistance or chemical corrosion resistance— as well as screw profiles and sector technologies. The result is a machine tailored to the customer’ s production process rather than a standard product.
COMPOUNDS, MASTERBATCH, AND HOT-MELT APPLICATIONS Co-rotating twin-screw technology is naturally suited to compounding and high-value recycling. High rotational speed combined with twin-screw geometry ensures superior mixing and homogenization compared to single-screw systems, together with particularly high degassing
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capability— an essential feature when processing engineering polymers, polyamides, polycarbonates, and fiber-filled materials. Masterbatch production— both color and additives— has long been one of the areas on which Comac built its reputation, including years as an almost exclusive supplier to major multinational companies. However, the company claims particularly strong expertise in hot-melt applications.“ In the world of hot-melt adhesives, the selfcleaning capability of the extruder is a decisive advantage”, Pellegrini points out.“ Product changeovers are much faster compared to traditional mixers, and the mixing quality allows us to manage difficult viscosities with results that often surprise customers. |
Italian technology plast / June-July 2026 |
www. plastmagazine. it |
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