The Omni recycling systems by the extrusion equipment manufacturer Gneuss Kunststofftechnik GmbH, Bad Oeynhausen/Germany, offer efficient solutions for different recycling requirements. They consist of a variety of machines from the company’s portfolio, customized to a specific material and application, utilizing Gneuss’ established devolatilization and filtration technologies. The Omni line is equipped with a 3C rotary feeder, an MRS extrusion system, a fully automated RSF genius melt filtration system, a VIS online viscometer and downstream equipment.
Polymer reclaim such as fiber waste, thin film or other low bulk density waste is fed into the Gneuss 3C Rotary Feeder. PET post-consumer and industrial waste does not require thermal pre-treatment. A conveyor belt feeds the material into the 3C rotary feeder, which cuts, compacts and conditions the material and feeds it directly into the MRS extruder.
The MRS extrusion technology in the Omni recycling line is based on conventional single-screw technology, but is equipped with a multi-screw degassing section. The degassing section of the patented process unit consists of an enlarged single screw drum with a series of satellite screws that rotate in the opposite direction of the extruder barrel, creating a very large melt surface area and ensuring rapid surface exchange. This provides unprecedented melt phase degassing performance with minimal material stress.