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Screw & Barrel
Sai offers standard application finished screws through flight tipping as well as fully encapsulated screws. This combined with corporate research and development, has enabled Sai to offer barrel material, screw finishes and screw geometries for nearly every extrusion machine and plastics processing application.
Screw designs within the Sai have evolved over several decades from simple single flight Geometries to sophisticated barrier/mixing designs. State-of-the-art advances in screw design have improved the melting and solids conveying capabilities of the single screw extruder, leading to higher productivity. The most significant advances in melting are being realised due to our patented barrier screw geometries Sai can supply almost any size of extrusion screw for almost any application, and also offer a comprehensive rebuilding service too.
Just remember the most important element in any extrusion system is the feedscrew and is responsible for the critical functions of feeding, solid conveying, melting, mixing and pumping.
Feed screw Technology
Our ability to design and manufacture some of the industry's most advanced and efficient feedscrews is one reason we have been an extrusion leader for more than 10 years. With our R&D facilities and team of experienced polymer process engineers, we offer customers world class screw design and technical capabilities.
Screws for Every Application
Our primary manufacturing facility is in the single screw production, service, and support. We build one piece barrels ranging in bore size from 1 to 20 inches (25 to 500mm) in diameter and up to 185 inches (4,700mm) long. Two piece barrels are available in lengths ranging from 185 to 295 inches (4,700 to 7,500mm).