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09-23-2008

Hot-runner nozzle Rheo-Pro SG

For Side Gating

Hot-runner nozzle Rheo-Pro SG

Mold Hotrunner Solutions Inc., Georgetown, Canada, has produced a new hot-runner nozzle for side gating with its Rheo-Pro SG series. The Star Gate (SG) series has been specially designed for molds with a large number of cavities which require side gates. A single SG nozzle supplies a group of cavities with melt at the same time. This makes it suitable for the sprueless injection molding of long, hollow, thin-walled molded parts.

The SG nozzle is recommended for processing PE, PP and other non-sensitive thermoplastics which permit a long melt residence time and a broad range of processing settings. According to the supplier, its technical characteristics include the robust design of the mold structure and its maintenance-friendliness, since the gates and nozzle tips are accessible from the mold parting plane. In addition, the nozzles can be more readily fitted in the mold than side-gate nozzles, which require a complicated cavity insert and mold platen configuration and where the cavities may have to be moved or taken out during construction or maintenance work.

An SG nozzle conveys the melt into up to four cavities, each of which has a side pinpoint gate of 0.8 mm in diameter, with the intervals between the cavity walls positioned on a circle 52.0 mm in diameter.

The hot tips of the nozzle are uniformly heated by a patented nozzle heating system, and a Fe/CuNi precision thermo-sensor takes care of the temperature control. The single-zone control for each nozzle with four gates reduces the outlay otherwise required on temperature-control units for multi-cavity molds.

Company profile

Mold Hotrunner Solutions Inc.

60 Armstrong Avenue
GEORGETOWN, ONT L7G 4R9
Tel.: +1 905 8731954
Fax: +1 905 8730131

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