Hot Runners

Hot runners are the systems in place that deliver the material into the mold to make the part. These systems consist of hot halves, nozzles, gates and temperature controllers—all of which must be monitored, maintained and cleaned for optimal performance and to guarantee a quality end product.
Feature Articles

Multispeed Valve-Pin Control

Eliminating hesitation marks is easier and more cost-effective with multi-speed hydraulic technology.

Venting in Action

A dynamic (versus static) mold-venting valve helps resolve the most common effects of poor cavity venting.
New Product

Nozzle Offers Narrow Aperture

Plastic Service Group (PSG), a German maker of hot runners and related controls and other equipment, offers a “reflector” nozzle for cases in which the application requires a large nozzle but there is so little space available in the mold that such a nozzle’s tip would not fit through.

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