- DIGITAL SOLUTIONS
Regrind recycling with maximum efficiency.
Top recycled pellets from thick-walled regrind. For end products with best performance properties and a particularly high recyclate content. INTAREMA® RegrindPro® offers the ideal solution: extremely gentle processing in combination with high-performance filtration. Thanks to the thorough warming-through of the input material in the preconditioning unit and a particularly gentle operation of the universal screw, polymers with an extremely wide range of melting points and energy contents can be universally processed. At the same time, foreign material is effectively removed. For end products with top functional characteristics in terms of mechanical properties, surface quality, dyeability, odour, etc.
Very broad input bulk density range from 30 to 800 g/l – ideally suitable for regrind and other types of material such as film, sheet and non-woven applications
Uncompromisingly gentle regrind processing for top recycled pellet quality.
For end products with best performance properties and a particularly high recyclate content
Remarkably high-performance filtration: the EREMA Laserfilter removes undesired impurities particularly effectively.
Considerably higher filtration efficiency compared to conventional single and twin screw systems
Save set-up costs, increase productivity: RegrindPro® is a material all-rounder that gives you maximum flexibility
For end products with best performance properties and a particularly high recyclate content.
How it works
1. Regrind > conveyor
2. Preconditioning unit
The gentle way begins in the preconditioning unit. It gives the thick-walled regrind particles what they need to be warmed through homogeneously: a longer residence time. This is made possible by a slower turning of the new rotor disc with a higher filling level at the same time. Consequently even high moisture disappears and the regrind is perfectly prepared for the extruder. Additional bonus: fillers such as CaCO3 are distributed homogeneously thanks to the longer residence time and high filling level.
3. Gentle melting
Thanks to the preconditioning unit the extruder is fed warm instead of cold. The advantage over conventional systems: a short extruder screw is enough to melt the already dry and thoroughly warmed regrind particles. The shear stress is extremely low as a result while the melt quality is high.
4. High-performance filtration
Clean melt, clean performance: Efficient filtering is one of the central strengths of the new RegrindPro®. Thanks to the gentle preparation in advance the EREMA high-performance Laserfilter has an easy time. Dirt particles and impurities such as silicones are hardly reduced in size before and are therefore large enough for them to be easily removed from the melt. The early removal of undesired materials means they can no longer outgas and no unpleasant smells develop – a decisive quality bonus for the melt. Optimised high performance: through the ingenious design of the Laserfilter scraper geometry, rubber-like, non-melting contaminants such as silicones and linked polymers are lifted particularly quickly and continuously – and thus filtered even more effectively.
5. Perfect homogenisation
The final homogenisation of the melt downstream of filtration and upstream of degassing enhances the subsequent degassing performance and improves the characteristics of the melt.
6. Highly efficient triple degassing
The new RegrindPro® features convincing, high-performance degassing. This takes place very effectively in three stages: initial degassing already occurs in the preconditioning unit. Step two is reverse extruder degassing – made possible through optimised screw design. The final double venting degassing at the extruder is particularly effective and removes gas inclusions which are still present from the melt.
The melt is now clean, homogenised and perfectly degassed. And thus: ready for pelletising.
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