Following the launch in 2013 of extrusion lines for PET thermoformed sheets with the patented mechatronic polishing stacks of the Mirex-MT-V design series, Reifenhäuser Cast Sheet Coating has presented the next generation version.
The company says that the heart of the line is the synchronous REItruder twin-screw extruders, which are now in their third generation. In combination with dry-running vacuum pumps that work with an operating pressure of 5 millibars, and the degassing units on the REItruder, the systems meet FDA requirements for films that are made of 100 per cent recycled PET and are in direct contact with food.
Various coextrusion feedblocks are available both for fixed layer geometries and for the REIcofeed 2.1 systems that can be configured during operation. Meanwhile, modernised dies are available: for example, the producer can choose between internal deckling for maximum flexibility in the film width, or a lip gap that can be configured during operation for fast thickness changes, as well as between manual or automatic operation with thermal expansion bolts.
After five years of use worldwide, the MIREX-MT-V polishing stack has also been fundamentally modernised. Depending on the system capacity, it has three or four polishing rolls. Additionally, an axis crossing for the first roll is available optionally, for the production of thin films with large widths.
The entire line has been prepared for the implementation of Industry 4.0 functions that are being developed group-wide by Reifenhäuser Digital. Using the modular concept, customers can decide which functionalities benefit their business activities and which are not needed.
More information from Reifenhäuser Cast Sheet Coating, Spicher Strasse 46, 53844 Troisdorf, Germany. Tel: 49 2241 481-0. Web: reifenhauser-csc.com