Our Band Pinning systems produce high quality Bi-axially Oriented Polyester (BoPET), film at the fastest possible chill roll speeds, while maintaining the best possible transparency and other physical attributes. High quality film is the result of a perfectly controlled casting process. One of the most critical features of the casting process is an extremely precise and flexible pinning system. Most commercially available pinning systems utilize the principle of generating an electrostatic effect to pin the extruded melt on to the chill roll by causing ionization of air, thus eliminating air entrapment between melt & chill roll. The elimination of air entrapment creates extremely close contact between the melt and the chill roll, resulting in a virtually clear cast film, suitable for subsequent orientation at maximum line speeds.