MACHINERY | HOT RUNNERS & MOULDS
Right: Hasco showcased new
developments in mould- making and hot runners
when made from recycled materials. Other advantages of FlexFlow include quick colour changes and reduced material waste. The new Up Nozzle series is engineered for tight spaces with low shot weights. With a 12mm nozzle cutout, it delivers high performance in hard-to-reach gate areas. These features make the series ideal for industries such as beauty and personal care, packaging, beverages, and technical applications. Oerlikon showed parts produced with dedicated hot runner solutions for luxury cosmetic packaging. Benefits include high clarity, wall thicknesses of up to 12mm, and high process repeatability. �
www.hrsflow.com
Hasco showcased new developments in mouldmaking and hot runners at K2025. In mould bases, it has increased its cooling
range. The extended cooling system Ø5 allows precise cooling of slide bars and small moulds – which is ideal for complex applications with limited build volume, it says. The range is supplemented by further chemical working substances with NSF H1 certification, to meet the highest safety standards in food and medical technology.
Below: Incoe’s Heat-Inject delivers a small heat pulse to prevent visible weld lines on moulded parts
With a new slide retainer, Hasco offers a reliable way to avoid damage and malfunctions with slide inserts. The new InsertKey also enables unambiguous coding of inserts – for a better overview and process reliability in mouldmaking. It also showed how additive manufacturing can be used to make hot runners and filters. As well as making products with the highest possible throughput and the lowest shear, it focused on methods for simple mould diagnosis to recognise wiring problems quickly and efficiently. �
www.hasco.com
At K2025, hot runner manufacturer Incoe showed how its Heat-Inject variothermal temperature control can make weld lines invisible on the surface of a part. At the show, the company used the device to manufacture salad servers from SMMA. Behind the openings in the molded part – where the weld lines form due to the melt flows merging there – the Heat-Inject localised variothermal temperature control system applies timed heat pulses to prevent the weld lines becoming visible on the surface. The concept of Heat-Inject is simple, robust and
requires very little energy. A heated stamp is briefly pressed against the wall of the cavity from behind and transfers a small amount of heat. This is enough to briefly raise the temperature of the mould surface to a level that prevents the formation of a weld line notch. At the same time, the amount of heat introduced is so small that it is quickly dissipated via the mould plate without disturbing the heat balance in the mould or the injection moulding process. Heat-Inject units are supplied mounted on the hot runner system byt are also available in modules as an extra assembly. �
www.incoe.com
Kistler presented a range of cavity pressure sensors, systems and software for process optimisation and quality monitoring during K2025. One example is its ComoNeo process monitoring system. As well as improved user- friendliness, version 7.0 focuses on the extra Multiflow function, which enables automatic control of individual hot runner nozzles in multi-cavity moulds. This gives injection moulders maximum control over product quality. The improved hot
14 INJECTION WORLD | November/December 2025
www.injectionworld.com
IMAGE: HASCO
IMAGE: INCOE
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