MACHINERY | EXTRUDER DEVELOPMENTS
Above: Rajoo has introduced its Proex series of blown film lines
personnel. Bandera US is led by general manager Mattia Gambarotto.
Blown film launch Rajoo of India has introduced its Proex series of blown film lines.
At a launch event – held at film producer Balaji
Right: Reifenhäuser presented its Flex coextru- sion adapter for cast film and sheet and applications
Multiflex – the line produced film at 900 kg/hr in 22-micron thickness and 2800mm layflat width. A Relax extruder – with low shear heat design – dem- onstrates optimal energy efficiency and high yield, says the company. A CSD 4.0 die sits at the heart of the line, capable of delivering film thickness from 20 to 200 microns. The line achieved line speeds of 150 m/min. “This high-performance blown film line shows that we can achieve world-class quality,” said Pranav Bhalara, director of Balaji Multiflex. Rajoo recently expanded
production at its facility in Rajkot – allowing it to raise manufacturing capacity by 30%. The new production plant takes up 18,000 sq ft – with an extra 7,000 sq ft for quality control. The extended facility will produce domestically designed and assembled machinery, aligning with India’s vision of becoming a global manufacturing hub, said the company.
Flexible extrusion Reifenhauser presented its new Flex coextrusion adapter for the extrusion of cast, sheet and coating applications at the NPE show earlier this year. With the Flex model, Reifenhauser customers have a flexible, cost-effective system that comple-
32 FILM & SHEET EXTRUSION | October 2024
ments the performance spectrum between the Fix and Pro models, it says. Precise film profiling helps manufacturers of multilayer films to reduce production costs. With these coextrusion adapters, individual layer tolerances can be adjusted so that the minimum amount of raw material is processed, saving on material. The Flex variant completes Reifenhauser’s coextrusion portfolio and allows high flexibility in production at low investment costs, says the company. “The new coextrusion adapter enables produc- ers to quickly switch between different film struc- tures or layer thicknesses,” said Tim Baensch, product manager at Reifenhauser. “It offers more flexibility than the Fix version but foregoes some Pro features in favour of an attractive price position.” The main selling point is that, compared to the
Fix version, producers can use the Flex to make quick changes to the film profiling on the system themselves using adjustable profiling inserts. For processing sensitive materials such as PMMA or PC, the adjustable profiling inserts can be replaced with single-piece inserts once the perfect setting has been found. These enable better film quality due to their static geometry. Less demanding applications can also be run permanently with profiling inserts. In addition, channel packages can quickly change the layer structure of the film (such as from ABA to ABB). Shear speeds are set automatically in relation to the percentage layer structure. Compared to Reifenhäuser’s top model Pro, film profiling on Flex cannot be carried out during the extrusion process or be fully automated. The reduced
range of functions enables a lower price and more compact design, which is a benefit when
retrofitting existing systems with limited installation space. “Flex is ideal for producers who want to
switch regularly, independently and quickly between different film profiles and layer struc- tures on their line,” said Baensch.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.macroeng.com �
www.wh.group �
www.colines.it �
www.luigibandera.com �
www.rajoo.com �
www.reifenhauser.com
www.filmandsheet.com
IMAGE: RAJOO
IMAGE: REIFENHAUSER
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