In response to rising costs for sand casting its aluminum air rings for blown fi lm, Future Design Inc. in Mississauga, Ont., turned to CNC milling air-ring sections out of aircraft aluminum plate and then assembling the plates with epoxy and fasteners. From the outside, the new CNC-built Saturn AP 5000 air ring looks like the sand-cast Saturn air rings. But CNC milling reportedly allows better shaping of the chamber, air-fl ow passages, and lips, for improved air fl ow to cool the bubble. The fi rm also uses CNC milling to make a new circular gauge-control device, dubbed "Perfect Balance." It fi ts under the air ring with 0.5- to 0.625in.-wide channels and valves to control air fl ow manually or automatically to correct film thickness. Both devices will be shown for the fi rst time at the Plast-Ex show in Toronto in May. Tel: (905) 361-9978 . www.saturn2.com
Future Design Inc.
5369 Maingate Dr. Mississauga L4W 1G6, Ontario, Canada
Phone (905) 361-9978 Fax (905) 361-9985