Equipment Technical Overview

Two of our five extrusion lines are running Windmoeller & Hoelscher (W & H) blown film extrusion equipment.

W & H mono line with VAREX® OPTIFIL® PLUS
W & H three layer co-extrusion line

Here is the VAREX® design layout, courtesy of W & H:

1. main extruder drive

2. temperature-controlled grooved feed section

3. feed screw and barrel of wear-resistant design

4. screen pack changer

5. gravimetric metering and throughput control, (Module "G")

6. OPTIFIL® P-2 automatic blown film die

7. internal bubble cooling

8. film sizing section with non-contact ultrasonic bubble sensor

9. thickness-sensing gauge, (Module "K")

10. oscillating haul-off and bubble collapsing unit

11. automatic width control, (Module "B")

12. web guiding

13. two-sided corona treater

14. FILMATIC M® center/surface winder with DYNATRONIC® digital drive

15. PROCONTROL® operator column and OPTIFIL® PLUS modular automation

Materials are used with permission from Windmoeller & Hoelscher Corporation. Varex, Optifil, Filmatic, Dynatronic, and Procontrol are either registered trademarks or trademarks of Windmoeller & Hoelscher Corporation. All other trademarks are property of their respective owners.