TWIN SCREW EXTRUDERS | TECHNOLOGY
K2025. With the new TwinPro unveiled at the exhibition, Erema combines the advantages of a twin-screw extruder with the proven qualities of its Preconditioning Unit (PCU). Working closely with customers, the Austrian company developed a series production solution adept at recycling demanding multi-layer films while opening up new possibilities for thin-walled post-consumer regrind. “The TwinPro sees us couple our unique PCU
and low cost, twin-screw extruders offer distinct advantages. They are considered more versatile and highly capable of processing a wide range of plastics, including hard-to-handle materials such as PET bottle flakes, HDPE, ABS, and flexible elasto- mers like TPE and TPU. These machines provide consistent mixing, precise temperature control, and uniform pellet quality, making them especially suitable for factories seeking high-quality recycled pellets from diverse feedstock.” The company’s equipment is designed to
integrate into existing production lines which helps reduce raw material costs, minimise storage and disposal needs, and promote more sustainable production practices. “We have observed that even factories previously relying solely on single-screw recycling are exploring twin-screw solutions to expand their capabilities, especially for complex or high-value materials,” said the company. “By combining practical equipment design with flexible processing capabilities, we aim to help factories of all sizes make better use of resources, reduce waste, and maintain high production standards.”
Recycling trend
Established suppliers in the recycling extruder sector showed new twin-screw technology at
featuring Counter Current technology directly to a twin-screw extruder for the first time,” said Markus Huber-Lindinger, Managing Director at Erema. “During development, we focused on combining our strengths in material processing with the advantages of a twin-screw extruder.” A key feature of the TwinPro is its highly efficient homogenisation. The first stage takes place in the PCU, which shreds, heats, dries, compacts, and buffers the input material. Thanks to Counter Current technology, the extruder, directly coupled at a tangent to the PCU, is continuously filled with heated and pre-compacted material. Even with low bulk density material, the PCU can deliver full throughput and covers a wide bandwidth of input materials with bulk densities of 30 to 800 g per litre reliably processed in a single work step without the need for separate agglomeration, weighing, or a stuffing unit. This is followed by intensive homog- enisation in the twin-screw extruder, which produc- es recycled pellets. The trend toward thinner wall thickness for plastic
packaging increases the demands on extrusion technology. One particular application is polypro- pylene (PP) flakes that have been sorted and hot-washed from sources such as yogurt tubs. The company says the TwinPro is more than capable of processing this type of thin-walled packaging, and the PCU is able to remove residual moisture from the washing process and deodorise the material. NGR claims that combining its new ECO-Twin
extruder with proven Liquid State Polycondensa- tion technology sets new standards in PET process-
The new TwinPro from Erema couples its Preconditioning Unit directly to a twin-screw extruder, enabling efficient processing of specific recycling applications
Left: Nanjing Haisi Extrusion Equipment is designed to integrate into existing production lines, enabling factories to convert scrap and offcuts into high-quality pellets
www.compoundingworld.com
March 2026 | COMPOUNDING WORLD 17
IMAGE: NANJING HAISI
IMAGE: EREMA
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