MACHINERY | SCREWS AND BARRELS
Right: The Cool and Clean sealing system from Extruder Experts simplifies maintenance of cooling channels
done inside the extruder and over residence time, adding that the new Fractional Lobe Processor is able to significantly enhance mixing and melting capabilities. “The Fractional Lobe Processor has the ability to work on materials in solid state to achieve intimate interaction between the constituents while imparting physico-chemical changes through reaction, devolatilisation, shear, compression, elongation, surface renewal, distribution, disper- sion – either alone with minimal interfering effects from other actions or in any desirable combination of actions,” says Atanu Maity, Chief Executive Officer of Steer. According to the company, the Fractional Lobe
Processor eliminates meta-radial shear, which allows it to achieve stable and improved process control in compounding. Omega extruders with the Fractional Lobe Processor feature improve efficiency in handling difficult-to-process materials and perform well in applications that need lower residence time and/or tighter residence time distribution.
Custom combinations KraussMaffei Group company Burgsmüller has developed ScrewCon, a new software tool allowing the development of custom combinations of screw and barrel housing elements for twin-screw extruders. The software is extruder-independent, allowing configuration of processing sections for a wide range of different twin-screw extruder brands. According to Burgsmüller, the ScrewCon
software ensures rapid, cost-effective and premi- um-quality compounding is achieved. The com- pany’s engineers can design tailored screw and barrel housing element configurations for any application with a true-to-scale visualisation. In addition to the specific rating of conveying, kneading, mixing or retaining elements, the company says it can provide advice on the opti- mum material selection for the screw elements and housings in order to increase service life and output rates. ScrewCon currently includes a library of some
3,000 screw and barrel housing elements, which allows bespoke configurations to be designed for specific machine types and applications. Where elements are not available, the company says it can easily add them using the machine owner’s data. Burgsmüller says it is not limited to the standard portfolios from the extruder producer but can provide compounding companies with the most cost-effective screw configuration by integrating special elements such as multi-process elements, shoulder kneading disks or other mixing elements.
72 COMPOUNDING WORLD | August 2018
Easing maintenance Extruder components specialist Extruder Experts has introduced a new cooling system seal – Cool and Clean – for its barrel sections. The company says the Cool and Clean design allows full access to the cooling channels and easy maintenance and cleaning of cooling systems. In cases of calcination of the cooling system, for example, it is no longer necessary to call in external specialists as in-house cleaning of the channels is easily carried out. Advantages for compounding customers include self-determined maintenance intervals, allowing flexibility in channel maintenance pro- grammes. Production is maintained through fast and uncomplicated cleaning, and machine down- time can be reduced, the company claims. In addition, it says operating costs are reduced by prolonging the life cycle of the barrels while aggressive cleaning chemicals can be avoided. Meanwhile, CA Picard has completed the
relocation of its Extruder Technology business division’s barrel production from Monschau-Imgen- broich to Remscheid in Germany. The company says capacity at Monschau-Imgenbroich was no longer sufficient and could not be expanded due to space constraints. The company has also relocated its barrel refurbishment activities to the new site and two new milling machines – DMU100 units from DMG – have been acquired to supple- ment the existing machines that have been upgrad- ed and transferred from Monschau.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.entek.com �
www.coperion.com �
www.kraussmaffeiberstorff.com �
www.cpmextrusiongroup.com �
www.steerworld.com �
www.burgsmueller.de �
www.extruder-experts.com �
www.capicard.de
www.compoundingworld.com
PHOTO: EXTRUDER EXPERTS
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