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Nozzle optimized for multimolding

By switching various inserts, Battenfeld?s modular multiprocess nozzle system allows a change between classic two-component techniques (see image at top), multilayer (sandwich) molding (middle), interval molding (bottom), and single-component processing. Fitted between the injection unit and mold, the nozzle consists of concentrically designed inner and outer nozzles, each fitted with a top closure. The inner and outer nozzles can be operated independently for precise control of the various injection processes, and single-component molding is done by turning off one of the two parts.

For interval molding, the insert has quick-reaction nozzles that permit injection of two components in intervals. The two-manifold nozzle can be fitted with an insert that allows the injection of components through two separate gating systems with separate tracks for each polymer.

The multiprocess nozzles can be fitted to molding machines of Battenfeld?s CDC, BK, and HM Series. Reportedly, changeover is fast because it takes only a few steps to change modes. The largest of these nozzles was installed in a Battenfeld 2000-ton machine for connecting the melt flow from two Euromap 120,000 injection units with screw diameters of 250 mm.

Battenfeld of America Inc.
West Warwick, RI
Phone: (401) 823-0700
Fax: (401) 823-5641
www.battenfeld.com

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