MELT FILTRATION | TECHNOLOGY


Suppliers gear up melt filter capacity


Next-generation filtration solutions are addressing throughput and polymer quality needs. Chris Saunders reports on new and enhanced technologies


As recycling targets for packag- ing and other plastics sectors draw closer and demand rises for high-quality post-consum- er (PCR) resins, enhanced melt filtration technologies are enabling recyclers to push past historic barriers in melt cleanliness and productivity and bring recycled plastics closer to virgin equiva- lence. At the heart of these develop- ments are automated units capable of delivering higher throughputs with finer filtration and lower operational costs, while larger open screen areas and lower differential pressures contribute to improved melt homogeneity and reduced degradation, essential for higher-value applications. The benefits of high-capacity melt filtration were showcased at K2025 in Düsseldorf, Germany, last October in the form of Erema’s LF 812 laser melt filter, a Powerfil brand innovation featuring a 100% increase in screen area versus its predecessor allowing single-unit operation at up to 5,000 kg/h of melt while maintaining fine contaminant removal. The enlarged filtration surface reduces pressure and thermal load on the melt stream, which can offer significant advantages when processing sensitive polymers. “This latest development in our laser filter sees


us take a decisive step towards meeting the growing demands for high throughputs in plastics recycling at the same time as achieving the highest quality of melt,” said Markus Huber-Lindinger, Managing Director at Erema. “As a leading pro- vider of plastics recycling machines, at Erema we focus our experience and technical expertise on equipping large-scale systems with high-perfor- mance filtration in a compact design.”


www.plasticsrecyclingworld.com


This latest innovation sees Erema continue on a firmly established course. At K2022, the company presented the LF 406 laser filter with a screen area of almost 2,000 cm²; an increase of 50% compared to the LF 356. The launch of the LF 812 increases the screen area by a further 100%. Combined with the Intarema 2021 TVEplus, which has a throughput of up to 3.5 tonnes/hr, the potential of the new filter becomes clear as now the system can operate with one continuous extruder without a cascade configuration. A new development is the integration of the


proven Lock & Change system into an Endurance filter, which handles coarse pre-filtration and protects the laser filter when processing unwashed material or input streams that are difficult to clean. In combination with the shut-off function on the Lock & Change system (available starting with the twin version), the machine continues production even while one of the sets of screens is being changed. Erema says this increases system uptime and contributes to stable process control with


April 2026 | PLASTICS RECYCLING WORLD 27


Main image: Maag Ettlinger is further


developing its ERF series of melt filters


IMAGE: MAAG


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