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23-Ft-Wide Blown Film

From: Plastics Technology
Issue: August 2008

It’s the widest blown film line ever built, according to Gloucester Engineering Co., Gloucester, Mass., which shipped the system earlier this year to make geomembranes. The line has an 86-in.-diam. die, capable of producing geomembrane liners 0.5 to 2.5 mm thick and up to 23 ft wide. The take-up is a special dual-drum surface winder over 30 ft wide. On roll changes, the winder automatically cuts the liner, retrieves a sample, and then transfers the web to the new core. The line has an 8 in.-diam., 36:1 main extruder with a 1000-hp motor and two 3.5-in. coextruders for skin layers. It was delivered to Polytex SA, a Chilean processor, for a new plant in Peru, which started up in July. (978) 281-1800 • www.gecextrusion.com

Gloucester Engineering Co.
Blackburn Industrial Park
P.O. Box 900 Gloucester, MA 01930
Phone (978) 281-1800