Recycling extruder MRS

for PPfor PEfor PET

The patented MRS Extrusion System offers completely new possibilities with regard to the efficient degassing and extrusion of polymer melts. MRS extruder: a single-screw extruder with a multiple screw section Compared to a conventional single-screw extruder, Gneuss’ MRS extrusion system offers many new possibilities for the efficient degassing and recycling of polymer melts. In addition, with the MRS extruder gases or fillers can be homogeneously introduced into the melt. Devolatilization extruder The MRS extruder, which is based on the technology of the single-screw extruder, has a robust design and a wide range of applications. It is particularly suitable for recycling applications, such as bottle, fiber or sheet recycling. The innovative processing unit allows post-consumer polyester (PET) to be processed directly into high-quality end products. The process takes place without pre-drying and by using a simple water ring vacuum system. Multi Rotation System: the design of the MRS extruder The MRS extruder is based on the conventional single-screw extruder, but is equipped with a multiple screw section, for optimum devolatilization. The polymer melt is delivered into a large single-screw drum. The drum contains several small extruder barrels, parallel to the main screw axis. Installed in these small extruder barrels are the “satellite” screws, which are driven by a ring gear in the main barrel. The satellite screws rotate in the opposite direction to the main screw while they rotate around the screw axis. This disproportionately increases the surface exchange of the polymer melt.