A Blown Film Plant is a type of plastic processing machinery used to manufacture thin, flexible plastic films that are widely used in packaging, agriculture, and industrial applications. It works on the principle of blown film extrusion, where plastic granules are melted, extruded through a circular die, inflated into a bubble, cooled, and then converted into rolls of film.
Blown Film Plant works by feeding plastic granules such as LDPE, LLDPE, or HDPE into an extruder, where they are melted through heat and screw rotation. The molten plastic is then pushed through a circular die to form a thin tube, which is inflated with air to create a film bubble. This bubble is cooled and stabilized using an air ring to achieve the desired thickness, clarity, and strength. It then passes through a collapsing frame, turning the bubble into a flat film sheet. Finally, the film is wound into rolls using a winder, making it ready for printing, cutting, and packaging applications.