I. Core Functions and Value Impurity Filtration and Product Purity Assurance Screen changers intercept impurities such as metal debris, scorched material, and unplasticized particles within the plastic melt through built-in filters, ensuring pure melt enters the extrusion die. For instance, in medical tubing and food packaging film production, impurity filtration prevents defects like black spots and crystalline inclusions, elevating hygiene standards. Enhanced Production Continuity Non-stop Scr