Spirex Corporation is the only North American designer and manufacturer of all key plasticating unit products, including screws, barrels and front-end components. Spirex is the leading worldwide manufacturer of complete plasticating systems and solutions. The company was founded in 1978, although it has been involved in the plastics industry since 1950. Spirex has experience as a designer and manufacturer of screws, front-end components and barrels, along with an extensive knowledge in melting plastics. Spirex is a licensed manufacturer of DuPont s ELCee Screw, a single-flighted performance-based screw for rate limited processors using pre-compounded resins. The ELCee Screw helps maximize productivity and quality in molding crystalline thermoplastics and amorphous resins. The company has entered in partnership with Trexel, with Spirex licensed as a manufacturer to furnish screws and valves for its microcellular foam injection molding process. Because of this relationship, the company can also offer complete plasticating systems to license holders of the Trexel process. Spirex is headquartered in Youngstown, Ohio.