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Krauss Maffei spin-platen irons out costs

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article image Krauss Maffei spin-platen solution at Rowenta
World-leading plastics processing machinery specialist, Krauss Maffei of Munich, Germany provided a cost-effective spin-platen injection moulding solution for their customer Rowenta-Werke’s production line in Lyon, France.
Rowenta, part of the SEB Group with annual sales of $3 billion manufactures small home appliances such as high quality steam irons and steam generator ironing systems. The company sought a cost-effective solution for the manufacture of a new steam iron that consisted of a transparent water tank, an opaque coloured body and a handle with a soft touch zone. Rowenta’s primary objective was to manufacture the product in a single work cycle on a 3-component machine.
Krauss Maffei recommended a spin-platen mould installed in a KM650-1900/1900WP injection moulding machine with a 650-clamp force. Two of the three injection units were in the machine’s centre axis – one behind the moving platen, and the other behind the fixed platen. The third injection unit was mounted vertically above the fixed platen. A robot demoulds the parts from the side and passes them to a post-processing station for sprue removal.
The spin-platen solution requires less tonnage than a turntable solution, has a small footprint and provides symmetrical application of force during injection. A 90° mould rotation takes only 1.8 seconds, which is just enough time for the substrate to cool down minimally, resulting in uniform material bonding.
Krauss Maffei is represented in Oceania by HBM Packaging & Plastics Technologies .

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