Sponsored By

A sequential valve gate controller (SVGC) has been integrated into the hot runner temperature control systems supplied by Gammaflux Europe, the Wiesbaden, Germany-based subsidiary of this company. Designed for use with hot runner systems with needle-valve nozzles, the SVGC opens and closes each nozzle individually and independently of all the others.

PlasticsToday Staff

August 4, 2009

1 Min Read
SVGC added to hot runner controls

A sequential valve gate controller (SVGC) has been integrated into the hot runner temperature control systems supplied by Gammaflux Europe, the Wiesbaden, Germany-based subsidiary of this company. Designed for use with hot runner systems with needle-valve nozzles, the SVGC opens and closes each nozzle individually and independently of all the others. This permits sequential filling of the cavity so that flow lines either are prevented from forming or are shifted to those areas of the molding that are not mechanically and/or optically critical. The reduced flow length permits a reduction in wall or section thickness, leading to weight savings. Since the holding pressure is uniform throughout the entire molded part, the reproducibility of the parts is said to be improved. The integrated sequential valve gate controller is available for use with 8, 16, or 32 pneumatically or hydraulically actuated needle-valve nozzles. —[email protected]

NF_8-5_Gammaflux.jpg

Shown here in the form of screen displays are (top) the program for a hot runner system with 8 needle-valve nozzles (red: closed, green: open), and (bottom) the operating status of the nozzles 9.61 seconds after commencement of the cycle.

Sign up for the PlasticsToday NewsFeed newsletter.

You May Also Like