Why choose MAS?
At MAS, reducing, reusing, and recycling are paramount. Our extrusion technology is designed for maximum energy efficiency and future viability. This enables the continuous reuse of valuable resources while reducing the need for primary materials. Our technologically advanced and adaptable extruders and lines maximize resource utilization, reduce waste, and drive sustainable change throughout the recycling industry.
Customers benefit from individually tailored solutions that are highly economical and pay off quickly. Precise adaptation to existing systems, rapid spare parts, and maintenance package availability complete the offering.
MAS twin-screw innovation at a glance
Compared to conventional, parallel-running twin-screw extruders, MAS relies on its innovative conical co-rotating technology, achieving significantly stronger results on all levels:
- Large material input: All materials can be fed into the large feed opening, regardless of bulk weight and composition. Even very light inputs, such as shredded PET bottles or PET films, are processed effortlessly without additional side feeders and openings.
- Adjustable screw speed: Depending on the input and desired output quality, as well as any fillers or additives, the screw speed can be freely defined. Slow, gentle processing and fast feeding with high homogeneity are possible while maintaining consistent quality.
- Shorter machine length: Conventional, parallel-running twin-screw extruders often require multiple feed openings and side feeders to continuously adjust larger material quantities and additives. The material remains in the extruder at higher temperatures for longer, which can lead to degradation and quality loss. Due to the large feed opening in MAS systems, the entire twin-screw extruder is significantly more compact, resulting in more consistent, higher material quality, thanks to shorter residence times.
- Energy efficiency: In addition to the extended length, conventional twin-screw extruders must input significantly more energy to process the material throughout the entire dimension and then remove it again, for example, as oil or water. MAS devices only require the energy required to melt the plastic and need only a small fan for cooling. This also has a positive effect on material quality.
- Optimal Re-compounding: Thanks to the flexibility in bulk weight and the high-pressure build-up due to the conical co-rotating design, MAS twin-screw extruders can more easily introduce recycled material and refine it with additives and fillers. With consistently higher energy efficiency, no additional melt pumps or side feeders are needed.
- Reduced wear: Due to the modular design of the screw, usually only individual screw elements need to be replaced. This reduces wear and leads to significantly longer durability of particular components. Due to the shorter machine length, less space is required for disassembly and replacement; the entire system does not need to be dismantled first. This reduces production interruptions (on average, about half a day) and ensures faster system amortization.
MAS twin-screw extruders in film applications
Due to their flexibility and strong properties, MAS’s conical co-rotating twin-screw extruders are suitable for various plastics. In film recycling, quality is paramount. Conventional single-screw extruders often leave small residues of recycled material, known as “gels,” which can appear as dark color pigments (e.g., black specks in yellow bag materials). MAS systems break these down entirely, producing uniform, high-quality films without defects, resembling new material. Due to the short machine length and significantly shorter residence time in the twin-screw extruder, color values can also be maintained, meaning the material does not degrade or yellow. Additionally, refinements with additives and fillers are possible at any time without issue.
MAS twin-screw extruders in PET applications
The extensive and highly flexible input of MAS systems makes twin-screw extruders the ideal PET recycling solution. All bulk material combinations and mixtures can be processed as desired. Even very light PET materials can be processed more gently and uniformly thanks to reduced screw speed. The PET is directly degassed during extrusion and only transported without unnecessarily high temperatures. This leads to less shear and degradation with only slightly longer residence time, consistently high quality, even with the most demanding PET compositions.
MAS is committed to delivering world-class recycling solutions and redefining industry standards through groundbreaking extrusion technology. Our products stand for unmatched technological excellence, driving performance, efficiency, and sustainability to the next level. Let our experts show you what’s possible: experience tailored consultation and discover how MAS can elevate your recycling operation to new levels.
Source: MAS Austria
