F.lli Maris S.p.A. is an Italian company owned by the Maris family, with more than 60 years of experience in the design and manufacturing of co-rotating twin screw extrusion lines. All our technology is fully developed and produced in house at our single manufacturing site in Rosta (Turin), where every mechanical component – including the complete gearbox – is designed and built. This structure allows us to keep full control over quality, precision and flexibility across all the solutions we deliver. Devulcanization is the process which – by breaking the crosslinks between chains – turns a vulcanized rubber into a new plastomeric material that becomes re-processable and recyclable. Our patented thermo mechanical process, applied to our extrusion lines, is a 100% green approach and does not involve the use of devulcanizing additives or solvents. Through this process it is possible to recycle a wide range of materials, including: • ELTs including car, truck and off road vehicles tires • ACM • BR • EPDM • FKM • HNBR • IIR • IR • NBR • NR • Q • SBR Chemical and rheological analysis carried out on devulcanized materials show that the devulcanization yield can reach 50–90%, depending on formulation and process parameters. The devulcanized material can be reused in the same original application at 15–50% mixed with virgin rubber while maintaining the required mechanical properties. For different applications, it is possible to exceed 50% in the blend, achieving high performance together with improved sustainability. Our Technological Center is a fundamental asset for customers wishing to validate formulations, optimize processing parameters or produce small batches. It is equipped with four dedicated test lines including a 40 mm line (with D/d 1.55, 1.65, 1.78) and the 58 mm line for scale up activities and small production batches.