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The Blown Film Extrusion Simulator is said to show realistic interaction among screw speed, nip speed, and cooling air on bubble dimensions, thickness, and frostline.
So, to maximize barrier, extrude PE blown film with a high BUR, high frostline, and narrow die gap.
Its TC-50B, HD system for HDPE has a new computer system for HDPE has a new computer system that controls layflat width by means of an electric eye, throughput rate and average film thickness by gravimetric feeding control, and frostline position by means of optical sensing and cooling-air regulation.