This specialized equipment transforms plastic resin into a continuous tubular film. Pellets of raw material are fed into a heated barrel, melted, and then extruded through a circular die. Air is introduced to inflate the extruded tube like a balloon, stretching and thinning the plastic. This process creates a wide range of film products, from thin shopping bags to thicker agricultural sheeting.
The versatility of this technology makes it critical to numerous industries. Its ability to produce films of varying thicknesses, widths, and properties provides packaging solutions for food, consumer goods, and industrial products. The process offers economical production of large volumes of film, crucial for meeting global demand. Developments in materials science and extrusion technology have led to enhanced film performance, allowing for greater strength, flexibility, and barrier properties.