TECHNOLOGY | HOT RUNNERS


Right: Florian Larisch, Executive VP for Hasco’s Hot Runners division, holding


solidified flow from its Streamrunner hot runner manifold system


more compact than can be achieved from a conventionally manufactured hot runner system. As no plugs are needed, it is possible to have an 18 mm pitch and 26 mm manifold height, Larisch says. The low mass of the manifold block reduces energy consumption for an additional cost saving. Hasco in 2022 introduced Streamrunner Multicolour, a multi-material version of the mani- fold technology in which the application of additive manufacturing yields a design where different melt channels can be intertwined yet allows for the balanced distribution of different materials or colours over a very small area. Hasco showed a Streamrunner Multicolor manifold created with three separate material channels in a compact design at the Fakuma show.


Flow channel design


Rheologically designed flow channels in the manifold system provide smoother processing of heat-sensitive materials and a reduction in pressure losses, which retains the mechanical properties of the material, Larisch said. Flexible tube heaters with a square cross section are mechanically com- pressed into a groove to guarantee outstanding heat transfer.


Below: Hasco’s new RFID Mould Tag provides direct access to the latest informa- tion and CAD data regarding the hot runner system


Hasco also developed Streamrunner with needle valve system, which is suitable for multi- drop hot runner applications with narrow nozzle pitch dimensions where a valve gate technology is required. According to Hasco, a needle drive needs space, which generally results in mould sizes designed larger, for use on larger injection mould- ing machines. “The distribution of the melt in the manifold is usually associated with restrictions when using a valve gating system,” Hasco says. At Fakuma, Hasco presented a fully balanced,


20-drop Streamrunner system with needle valve technology in which the outside dimensions of the


hot runner are just 124 mm by 124 mm. The system is equipped with individually controlled, screw-in nozzles which can also be used for engineering plastics. The stroke motion of the needle takes place via a circular plate package that is driven by pneumatic cylinders, Hasco says. Hasco now offers RFID technology integrated into its hot halves and wired systems as a time- saving aid in gathering relevant product informa- tion. Its new RFID Mould Tag provides direct access to the latest information and CAD data regarding the hot runner system, such as individual compo- nents in the injection moulding tool and compre- hensive details about the components. Users can view order reference, product


categories, product type, material number and maximum mould size, and can download assembly drawings or 3D constructions of the entire system, to ensure correct installation of the mould units. The user can access a safety datasheet and all relevant spare parts available at a glance. Mould Tag is installed as standard on new orders for hot halves and wired systems, Hasco says. Mould Tag can be used with any smart device with Hasco’s new app installed. Users press the NFC Scan button in the app then bring the smart device to the Mould Tag to call up the data. Hasco says Mould Tag offers unambiguous identification with forgery-proof certification of origin compared to bar codes or QR codes which can be copied. Hasco has updated its Primezone hot runner


IMAGE: M KNIGHTS 20 INJECTION WORLD | November/December 2023


temperature controller with a new interface and OPC-UA connectivity, says Larisch. The Primezone hot runner controller, introduced two years ago, has a new housing design and an angled 10 inch touch screen display that provides an overview of


www.injectionworld.com


IMAGE: M KNIGHTS


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