To Increase Output and Reduce Energy Consumption with Gneuss OMNI Extrusion System
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Gneuss OMNI recycling system integrated into UNIPACK’s strapping tape production line |
Czech packaging specialist UNIPACK has modernized its polyester strapping tape production line by replacing an existing extruder with a Gneuss OMNI extrusion system. Since the beginning of 2026, the new system has been operating successfully, delivering higher production output, significantly more stable processes, and noticeable energy savings.
UNIPACK produces polypropylene and polyester strapping tapes on several production lines and has continuously expanded its production capacities in recent years. As part of the modernization project, an older extruder was replaced with a Gneuss extrusion system consisting of a 4-component dosing system, an MRS 90 extruder, a 25 mbar vacuum unit, an RSFgenius melt filtration system, a VIS online viscometer, melt pump, and strapping die.
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UNITAPE strapping tapes |
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"With the new Gneuss technology, we do not need expensive material preparation (drying and crystallization) with a residence time of 5 - 6 hours, we are able to monitor the viscosity of the material online and, most importantly, thanks to excellent filtration, we have stable production without unnecessary interruptions " reports Project Manager Dušan Rejthar. "Our productivity has increased and the amount of waste has decreased from 7% to 3%."
As feedstock, UNIPACK mainly processes coloured PET bottle flakes, including green, red, and brown materials that are typically no longer suitable for bottle-to-bottle recycling. The system enables the use of up to 100% recycled material.
The company highlights not only the increased throughput but also the consistent quality of the strapping tapes. This quality has already received positive feedback from end customers. Mechanical properties, particularly elongation and tensile characteristics, have been significantly improved.
"We are very satisfied with the system’s performance," says Rejthar. "The cooperation with the Gneuss service team during installation and commissioning was also excellent."
