Extrusion International 6-2025

58 Extrusion International 6/2025 RECYCLING an exceptional set of technical and economic ben- efits. Key bene ts of the iQonicTwin PreDensi er: • Signi cantly reduced gel formation & black spots - Low energy input, less mechanical stress • Stable, reliable and reproducible processing - even with uctuating feedstocks - Consistent ma - terial quality • High energy ef ciency (~0.15 kWh/kg) • No dust emission, no water injection • Compact design and simpli ed maintenance - Seamless integration into existing systems • Instant start/stop capability incl. no warm-up needed • Easy cleaning, faster material change • Full process control (start/stop, emergency stop, monitoring) • No cake formation as seen with cutter compactors • Ultra-automated From lms and bers to PP ropes, nonwoven materi - als, eece, and even XPS recycling, the iQonicTwin Pre - Densi er delivers consistent, high-quality results across a wide range of applications, setting new benchmarks in recycling performance. M-A-S Maschinen- und Anlagenbau Schulz GmbH www.mas-austria.com Siempelkamp Size Reduction (formerly PALLMANN) www.siempelkamp.com Efficient Filtration in PET Recycling – How the New COBRA Filter is Setting New Standards A conversation with Matthias Schmitz, Head of Engineering Recycling Technology at BB Engineering Rapidly rising recycling rates, uctuating input qualities and high demands on product purity pose major challenges for recyclers – especially in ltration. BB Engineering is responding to this with an innovative lter system: the COBRA lter. This combines large-area ne ltration with inline cleaning and promises not only increased ef ciency and low operating costs, but also noticeable cost reductions. In this interview, Matthias Schmitz, Head of Engineering Recycling Technology at BB Engineering, talks about the development goals, technical features and practical bene ts of the new solution. Mr Schmitz, what was the main motivation behind the development of the COBRA lter? Schmitz: The ltration requirements in PET recycling are high. The input material is often heavily contami- nated, but at the same time the quality of the end prod- uct must be right. Conventional lter systems quickly reach their limits – either they cannot achieve the nec- essary ltration neness, or they are extremely main - tenanceintensive and complicated to handle. And yet ltration plays a key role in recycling. Our motivation was to develop a system that could overcome these challenges – ef ciently, automatically and with as little waste of resources as possible. The result is an automated large-area ne lter with inline cleaning – a system that has never existed before. Can you tell us more about the COBRA lter? What makes it special and how does it stand out from existing lter systems? Schmitz: Exactly. Our COBRA lter is a continuous large-area ne lter with an automated cleaning pro - cess directly in the lter – a novelty in this form. We