In conventional injection moulding, undesirable, poorly flowing areas often occur in the hot runner due to roughness around the valve pin. This results in degradation reactions in the plastic melt and exceptionally long colour transitions. The new Shadowfree manifold concept from HASCO Hot Runner uses a revolutionary design to combat this problem.
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Uniform flushing around the needle
The 3D-printed, screwed-on system effectively splits the material flow into streamlined channels to evenly flush around the needle and reunites them at the point where the valve pin enters the melt channel. Rigorous testing has shown that the system provides a rapid transition from black to white material in just 25 cycles, outperforming conventional valve gate systems by three to four times.
In addition to the proven advantages of the Streamrunner®, such as the elimination of dead spots, a particularly gentle material flow and thus a noticeable reduction in pressure losses, the Shadowfree technology now also offers a solution for extremely sensitive materials in terms of heat stability in combination with valve gate systems.
With the additively manufactured Streamrunner®, HASCO started a new era in the world of hot runner technology. It was developed with state-of-the-art technologies for innovative future-oriented solutions. The compact and perfectly balanced Streamrunner® ensures particularly gentle melt guidance in combination with excellent colour change characteristics. The leak-proof system is also particularly suitable for multi-cavity systems.
Super-fast colour changes with valve gate systems
The Streamrunner® Shadowfree is now well on its way to further revolutionising the manufacturing landscape. With up to 70% faster colour changes, the system enables material losses to be reduced and product quality to be increased.
