Bubbie breakthrough future for blown film
Future Design Inc. of Brampton, Ontario, offers a new Bubble Glide as an alternative for a bubble cage for blown film.
The Bubble Glide consists of four rings — two stationary rings and two articulating rings—connected with vertical posts. A series of horizontal spokes are covered with rollers to reduce friction.
The operator moves a lever to adjust the guiding system to match the bubble's diameter.
Tel. (905) 453-9978, fax (905) 453-6089.
Diverter automates dry-material transfer
Salina Vortex Corp.'s multiport Wye Line Diverter eliminates hose manifold stations along with the errors and hazards of using them, when transferring dry material from several sources.
The device is available in tube sizes ranging from 2-6 inches in diameter for use in dilute-phase pneumatic conveying systems, according to the Salina, Kan., company.
Tel. (913) 825-7177, fax (913) 825-7194.
D-M-E Co. upgrades hot-sprue bushings
D-M-E Co. has introduced an improved version of its Straight-Shot hot-sprue bushings for molding engineering resins.
High-performance heaters prevent freeze-offs of the tips. The bushings have two different tip gate diameters — 0.062 inches and 0.125 inches — for direct part gating or for feeding half-round or trapezoidal runners.
For the tip inserts, the Madison Heights, Mich., company uses a special wear-resistant alloy designed for use with glass and mineral-filled resins.
D-M-E is a division of Cincinnati Milacron Inc. of Cincinnati.
Tel. (248) 398-6000, fax (248) 544-5705.
Reifenhauser units blow 3-layer PE film
Reifenhauser Inc. of Lawrence, Mass., is introducing two systems for three-layer blown film for the North American market.
The coextrusion systems can process all polyethylene resins, including metallocenes.
One model, called the 5.32, uses two extruders with screw diameters of 2.4 inches and one 2.8-inch extruder. It can hold die insert sizes from 7.9-15.7 inches, and can produce as much as 1,100 pounds of film an hour. Maximum lay-flat film width is 63 inches.
The second model, 5.44, is larger. It has two 2.8-inch extruders and one 3.1-inch extruder, dies of 15.7-23.6 inches and production rates as high as 1,540 pounds an hour. Maximum lay-flat width is 86.64 inches.
Both systems include a dual-lip air ring, nine-segment bubble stabilizing case, oscillating nip and Reifenhauser's UFA surface winder, which is available with reverse wind capability.
Tel. (508) 686-2700, fax (508) 686-4765.
Film changeover easy as pressing button
Davis-Standard's Egan Division in Somerville, N.J., has developed an extrusion machine, called Bi-Trac, that lets film producers and converters immediately change from cast film to embossed film, with very little waste.
The company said that previously machines were supplied to do both the embossing and production of cast film, but crews needed to spend a day or more changing rolls, removing water baths and installing air knives.
On Bi-Trac, the machine operator makes the change at the press of a button, since the casting unit contains engraved, rubber and smooth rolls required for embossing the film, as well as a gloss/matte roll for producing flat films. A water pan and air knife are mounted permanently to the unit.
By substituting the embossing nip with a coating-type nip, the machine can be used for a combination of extrusion coating and cast film.
Tel. (860) 599-1010, fax (860) 599-0476.