US EDI Curved Die Improves Cast Film Productivity

Recently, the US EDI extrusion die company (EDI) announced that: Since the introduction of Contour Die (ED) in EDI for two years, manufacturers of cast film, sheet, and coating products have ordered 35 modules based on this design. head. The unique shape of these dies represents a completely different concept from the traditional flat dies.

According to Christopher W. Curtin, executive vice president of marketing, curved die heads can achieve both thickness consistency and streamlined melt flow to increase productivity and product quality. He emphasized that most plastic extrusion processors and packaging material manufacturers can enjoy these benefits, especially for companies that frequently change products to benefit more.

“In commercial applications involving 2 to 4 mils (thousandths of an inch) thick polyethylene film, the curved die allows manufacturers to increase the extrusion rate by 30%, while the thickness consistency can be maintained at +/- 1.3%,” Curtin said. “It starts production of a standard saleable product in five minutes and produces only 90 kilograms of waste, while the traditional die requires 20 minutes of start-up time and produces 270 kilograms of waste.” In contrast to the previous constant deflection die, the superb flow of the curved die is particularly valuable for the processing of die heads for thermally sensitive polymers, but for most resins, it improves the reliability of product quality. It also reduces the possibility of lip lip buildup and gelation.

Source: China Light Industry Information Network