Faster colour changes Shadowfree technology eliminates shadow formations in valve gate systems

Source: Hasco 1 min Reading Time

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Hasco introduces an innovative solution that eliminates undesirable flow shadows in hot runner systems and accelerates colour changes by up to 70 percent. The 3D-printed Streamrunner system optimises material flow and ensures particularly gentle processing of sensitive materials, improving product quality and reducing material waste.

The Streamrunner Shadowfree offers up to 70 percent faster colour changes.(Source:  Hasco)
The Streamrunner Shadowfree offers up to 70 percent faster colour changes.
(Source: Hasco)

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 Shadowfree technology as module element offered by Hasco eliminates the flow shadows in valve gate systems and enables a significantly faster colour change in the hot runner.

The 3D-printed, floating 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.

With up to 70 percent faster colour changes, the system enables material losses to be reduced and product quality to be increased.

(ID:50202425)

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