Plastics | Blown Film Extrusion

Ensuring High Quality Standards

Similar to injection molding, the molten mass is pushed out of the extruder – however, in this case not into a die, rather through a die with a ring nozzle. The resulting film tube is then pulled vertically and blown up in the process. During this process air is used to cool the tube both inside and out.

From the moment the molten mass emerges from the nozzle, the temperature of the film tube needs to be measured at various points in order to ensure the characteristics and quality of the product.

Process temperature: 195 °C to 220 °C


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