K2022 PREVIEW | MACHINERY


Right: KraussMaffei will launch its new extrusion control system on a ZE 28 BluePower compounding extruder


The aim is to ensure that even less experienced IMAGE: KRAUSSMAFFEI


staff members are able to control complex extru- sion processes. Any deviations from setpoints are indicated at an early stage by visual feedback, so that intervention is possible before it becomes even necessary. The machine is also equipped with the compa-


also present an ‘upcycling’ compounding system suitable for production of engineering compounds, TPEs and bio-based materials. � www.icmasg.com


KraussMaffei’s K2022 display focuses on integra- tion of its compounding into upcycling and circular production processes. The company will, for example, be demonstrating injection moulded production of insulin pen caps in a medical grade PP followed by direct transfer to a ZE28 BluePower twin screw compounding extruder, where additives, glass fibre reinforcement, and liquid colorants are introduced before the finished upcycled compound is delivered to a second moulding machine for production of an automotive door module. The ZE28 extruder will be equipped with Krauss-


Maffei’s latest control system, which gets its first public showing at K. The most noticeable change is the interface, which uses a number of ‘wizards’ to provide the operator with step-by-step instructions. “The new interface ensures that operators receive the right information at exactly the right moment and can additionally store their experiences in the system, so that colleagues will also benefit from them,” says René Jordan, Teamlead Control Technol- ogy Automation Extrusion at the company.


ny’s ColorAdjust system. This uses a photometer to determine the colour of the cooled reclaimed pellets in the vibration chute, then transmits the corresponding values to the machine control system where they are used to programme and control a colour metering unit (typically four liquid colours but expandable to six depending on the specific application). The ColorAdjust system provides completely automatic control of the colour. KraussMaffei will also present a Direct Com- pounding Injection Moulding (DCIM) application. DCIM is not a new concept for the company — it supplied its first systems combining a twin screw compounder with and injection moulding machine more than a decade ago. The system at K, however, will use a single screw extruder which runs intermit- tently with the injection unit. The system will compound three different polyole- fin waste streams with widely varying melt flow rates — PP fibre grade (MVR 800-1,000), shredded HDPE from crates (MVR 5-15), and HDPE blow moulding scrap (MVR <1) — with masterbatch, micaceous iron oxide filler and stabilisers. The resulting blend will be moulded into transport boxes. According to KraussMaffei, the system extends the scope of DCIM to projects requiring shot weights of as little as 50g; the company says its previous twin screw DCIM systems required minimum shot weights of around 1,500g. Although not directly a compounding innova-


tion, KraussMaffei also says it will launch its own 3D print system at K2022. No further details have been revealed. � www.kraussmaffei.com


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