How to Choose a Blown Film Die Head?

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What Is a Blown Film Die Head?

As the most critical component of a blow film machine, the die head's role is to distribute the melt, transforming the cylindrical melt from each extruder into a tubular melt extrusion at the die exit, and then extruding the molten plastic material and blowing it into a film. During the film-blowing process, the die head not only needs to distribute the molten plastic evenly within the mold but also needs to adjust its structure and relevant parameters to ensure that the film's thickness, width, and other specifications meet production requirements. The blown film die head generally consists of a die core, die sleeve, pressure ring, and adjustment ring.