TWIN-SCREW EXTRUDERS | MACHINERY
Machine (which will rename itself Shibaura Machine from April). It offers two basic variants of its TEM series twin screw compounding machines. The standard TEM-SS machine offers a torque density of 13 Nm/ cm3
and can be supplied with standard SS screw elements (Do/Di of 1.56) or deep flight DSS elements (Do/Di of 1.8). The DSS flights provide additional free volume and can improve conveying performance. It also offers a high torque version — TEM-SX — providing a torque density of 18 Nm/cm3 The latest addition to its range is the TEM-CS
hybrid, which is offered in three variants. The TEM-CS I is fitted with a DSS profile on the upstream section to maximise material conveying capacity and an SS profile on the downstream section to provide optimal mixing. The company says this combination is optimal for low bulk density materials requiring a high level of mixing. The TEM-CS II variant reverses this layout, placing the SS elements upstream and the DSS elements downstream. A Toshiba spokesperson says this is an optimal arrangement for devolatilastion duties of for reactive processing where the priority is to achieve an initial intensive
IMAGE: TOSHIBA MACHINE .
mixing followed by controlled retention time. Finally, the the TEM-C III variant combines a DSS screw on the upstream side and a triple-flight high dispersion screw on the downstream side with a deeply grooved upstream barrel section. This is said to improve material conveying performance while overcoming the traditional output limitations of a triple flight screw configuration.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.kraussmaffei.com �
www.coperion.com �
www.polimerteknik.com/en �
www.leistritz.com �
www.comacplast.com �
www.mariscorp.com �
www.toshiba-machine.co.jp/en
Above: Toshiba’s TEM CS range are hybrid models combining multiple depth screw sections
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