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May 1, 2005

1 Min Read
Valve-gate hot runner systems

A new line of valve-gate hot runner systems was designed for applications where zero vestige and cosmetic part surfaces are essential. These systems are suitable for processing both filled and unfilled engineering resins. The MS75VG Polyshot valve-gate system has a cylindrical valve-pin shutoff design, which leaves a minimal gate vestige on the part surface that resembles an ejector pin mark. This unique design is also beneficial to the moldmaker and processor as it eliminates the need to fit a tapered shutoff pin.

A four-component stacked assembly features an independent valve cylinder and piston for each hot runner nozzle. The cylinders can be operated with either pneumatics or hydraulics. Access lines are fed through holes in the top clamp plate, reducing the need for hoses.

The hot runner systems are available in configurations from 1 to 96 nozzles, with a variety of manifold shapes. All systems are preassembled and heat tested before shipment and are available with or without a complete hot-half assembly.

In addition, Polyshot has a pneumatic valve-gate sequencer for use with pneumatic valve-gate systems. These feature an easy-to-use touch-panel operator interface. Graphical representations and instructions are printed directly on the sequencer cabinet to assist the operator with all connections and timer settings.

Polyshot Inc., W. Henrietta, NY
(585) 292-5010; www.polyshot.com

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