MACHINERY | TECHNOLOGY FILM EXTRUSION Film and extrusion portfolios on show


Reifenhäuser showcased its latest blown and flat film technologies – as well extrusion components – at Fakuma. For instance, the company showed


its wear-resistant Reiloy screws and barrels, which claims to offer a longer service life thanks to precise matching of raw materials and additives. Alloys developed in-house can be optimised for the extrusion process, it said. The company also showed its extruder and die portfolio. “From the plasticising unit to the


die, we know all interfaces precisely and design them exactly according to customer requirements,” said Ralf Pampus, managing director of


DOWNSTREAM


Entry-level slitting


machine Laem IMS, part of IMS Technologies, has introduced a new slitter rewinder, which extends its portfolio for the flexpack industry. The eSlit is designed for film manufacturers and converters who are looking for a straightfor- ward, cost-effective way to process materials while maintaining high quality. Its focus on efficiency, ease of use, and cost savings makes it an option for those who want a simplified processing solution, it said. In addition, the model


aims to reduce complexity and the typical learning curve for slitting systems. � www.laem-ims.com


www.filmandsheet.com TOOLING


Model die claims multiple options for development


At Fakuma, Comelt of Austria presented a model die that it said had many options for devel- opment. “The model shows the manual and automatic adjustment of the flex lip, a restrictor bar or external deckling,” said Johannes Müller, director of sales and technology at Comelt. “For us, customisation is common practice – so our dies and feed blocks are adapted to requirements.” The company’s product


range includes mono, coex and multi-manifold slot dies as well as feed blocks, dies for sheet and blown film, and spinnerets. Slot dies cover a range of applications and are


available from 150 to 3,000mm. “For multi-layer films, we deliver different, variable feed block systems – for the development and the production of new, innova- tive film structures in technical centres up to production scale,” he added. Comelt has recently been working on maximising machine running times, and the manual – or automatic – adjustment of product


Reifenhäuser Extrusion Systems. For flat film lines, it showed its latest


automation option PAM (precise, autonomous, mechatronic) for coextrusion adapters and dies. Using automated screwdrivers, PAM enables autonomous and mechatronic adjustment and control of the flexible lip via the line control system. De- pending on the die design, autono- mous adjustment of the dust bar, width adjustment and lip opening via adjustment of the lower die lip is also possible. PAM is available for Reifenhäuser


flat film lines and those from other companies. Lars Bergheim, area sales manager


in the division, said: “Since we intro- duced the system last year, we have implemented PAM at several custom- ers.”


In blown film, its Evo Fusion can help to increase the use of recyclate in film production. Using twin-screw technology, it can process previously unusable, low-cost recyclates. This is especially useful in applications such as trash bags or mailing bags. A special feature is direct extrusion, which eliminates the need for energy- and cost-intensive regranulation of the starting material. This allows fluff, other production waste and PCR material to be processed directly. � www.reifenhauser.com


thickness and width during production. “We have also devel- oped new coating proce- dures for an optimised material flow combined with reduced sticking of poly- mers at the tools,” he said. The dies also help to


raise sustainability, accord- ing to the company. � www.comelt.at


November 2023 | FILM & SHEET EXTRUSION 43


IMAGE: COMELT


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