MACHINERY | EXTRUDER DEVELOPMENTS
Right: Battenfeld- Cincinnati
showed a sheet extrusion line at an open house event recently
processing PET – have not been available on the market until now. The systems were commissioned at a Chinese customer’s site and form the heart of BOPET film lines from Brueckner to produce optical films. The new extruders feature a barrier-screw design that enables throughputs of up to 5,400 kg/h. With a screw length of 11.5m and a diameter of 360mm, manufacturing and transport posed technical and logistical challenges. The total weight of the extruder is more than 46 tonnes and its length of over 14m. Two energy-efficient, water- cooled motors, each with an output of 700kW, are used to drive the extruder. With this extruder size, BB says it has achieved a “technological milestone in PET processing”. The 360mm extruders open up “additional possibilities for applications in the high-performance segment”, it says.
Open invitation Battenfeld-Cincinnati showcased a sheet extru- sion line at an open house event at its new techni- cal centre. The centre, in Bad Oeynhausen, has been under construction for the last two years and includes a 1,300 sq m technical hall. “We are now able to fully assemble and demon-
strate complex extrusion lines,” said Henning Stieglitz, CEO of Battenfeld-Cincinnati. The company ran a live demonstration of a PP
Below: SML has added a new co-rotating twin-screw extruder its portfolio
sheet production line. During production, the line was changed from making 280-micron sheet to 200-micron sheet. This was a highlight for visitors, said the company, as the original target had been “only” 220 microns. The line – which can make both sheet and board
products – offers a range of processing possibili- ties. For plasticisation, the demonstration line can be configured with three different extruder concepts. In addition, reliable melt filtration
technology enables the processing of even highly contaminated material while maintaining high melt quality.
Line updates At Chinaplas recently, Reifenhäuser showcased its latest extrusion lines – Evo Gen3 for blown film and Everex for cast film. The new generation of Evo Gen3 blown film lines delivers an output of up to 1,050 kg/h with a 350mm die diameter – about 30% more than its predecessors. This is made possible by new Evo Ultra Die Heads in combination with the new Ultra Cool Gen3 cooling rings, it says. The new die heads are available in three variants: a 3- and 5-layer variant for maximum throughput and fast product changeovers; a 7-layer variant – optimised for barrier films; and a 9-layer variant for the highest film quality in complex products. As well as enhanced performance, the Evo Gen3 prioritises ease of use, as labour shortages and high employee turnover make it difficult for manufacturers to consistently achieve the desired quality and efficiency, it says. Smart assistance systems and the new HMI,
called Evo OS 3, help inexperienced operators to achieve fast, optimal results. One key feature is the Auto Flat System, which enables the flatness of the film to be measured and automatically optimised. This improves post-pro- cessing and material consumption. In addition, the ReStart Assistant reduces downtime during material changes, while a new control architecture enables connectivity, data utilization, and automa- tion, including AI integration. Meanwhile, the new generation of Everex flat film lines for cast and sheet applications is de-
14 FILM & SHEET EXTRUSION | October 2026
www.filmandsheet.com
IMAGE: SML
IMAGE: BATTENFELD-CINCINNATI
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