Cleaning of Screws and Cylinders

Cleaning the plasticizing screws and cylinders in extruders and injection molding machines is a fundamental operation to maintain production process efficiency, prevent material contamination, and ensure the quality of the final product. It is also essential for good preventive maintenance. The cases in which cleaning is needed are mainly two: At Viplas, we carry out […]

Extending the life of screws and cylinders: PVD coatings

Among the most common requests Viplas receives from customers is, unsurprisingly, how to extend the “lifespan of screws.” Like any mechanical part, the plasticizing screw (and barrel) is subject to wear. Additionally, depending on the type of polymers processed, the presence or absence of chemical or mineral additives, the pressures, and temperatures that develop inside […]