Gneuss: New Polymer Melt Evacuation Technology MRS

A new, patented technology for the evacuation or degassing of polymer melt, the Multi Rotation System MRS will be presented from Gneuß Kunststofftechnik GmbH (www.gneuss.com) for the first time at the Fakuma 2008.

Thanks to its patented multiple screw section, the MRS makes a very large area available and permits unmatched degassing performance, even with a vacuum of only 20 to 40 mbar. The extrusion of undried PET bottle flakes or pellets (for example 12.000 ppm H2O) is therefore possible without making any compromises. This of course also applies to high viscosity end products such as strapping tape.

Advert

This evacuation technology (and the multiple screw section) is based on the robust and proven single screw extruder concept. In this way, the MRS avoids the problems of alternative multiple shaft or screw designs which are considerably more sensitive to mechanical damage due to their tight clearances. This last point can be decisive in the reprocessing of PET bottle flake which frequently includes coarse contamination.

Further positive effects of the MRS technology are the 100% dehumidification of PET as well as the possibility of increasing the intrinsic viscosity of this material.

Photo: MRS-Extruder

FAKUMA 2008, Friedrichshafen, 14.-18. October 2008, Hall A6, Stand 6501

Gneuß Kunststofftechnik GmbH, Bad Oeynhausen, Germany