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Applications in sectors such as the food and beverage industry, chemical and process engineering as well as medical and pharmaceutical technology place the highest requirements on compressed air quality. After all, impurities in the compressed air such as dust, moisture, oils or microorganisms have an impact on product quality and the production process. With its DS series, AERZEN now offers new smart and efficient air compressors for oil-free compression and expands its portfolio with cost-effective series solutions for differential pressures from 5.5 to 10.5 bar.

Exceptionally high energy efficiency

The new double-stage screw compressors are available in nine sizes from 55 to 315 kW and volume flows from 180 to 2,920 m³/h. They reliably provide 100% oil-free process air (certified according to ISO 8573-1 Class 0) and achieve energy savings of up to 12% compared with the best-performing compressor models currently available on the market. This leap in efficiency is achieved by innovative bare-shaft compressors with new, highly efficient 4+6 rotor profiles in the low and high-pressure stages and motors with energy efficiency class IE4 or IE5. A VFD is integrated and guarantees optimum operation with a large turndown. The DS series is equipped with a direct drive using a coupling and gear drive for optimum drive efficiency and has stainless steel rotors in both stages to prevent corrosion.

Maximum reliability and durability

Our compressed air packages have been designed for maximal reliability and durability, and they achieve outstanding performance even in extreme climatic conditions. An effective sealing concept for the drive shaft and conveying chamber minimises natural seal wear. The smart oil concept with oil cooler, electrical oil pressure switch for a constant oil level check and a mechanical oil pump contribute to the high level of robustness and energy efficiency. The oil-lubricated anti-friction bearings with pressure lubrication achieve a service life of at least 40,000 hours.

Large range of accessories, options and modifications

The accessories list is also impressive: depending on the requirements and ambient conditions, air-cooled or water-cooled versions are used. A wide range of accessories, options and modifications are available for customised adaptations, for example when the packages will operate in hot, dusty locations or in extremely cold climates. When equipped with a high-quality acoustic hood, machines with integrated VFD can also be used outdoors.

Secure, efficient and environmentally friendly compressed air generation

Maximum energy efficiency, quality, durability and reliability, paired with minimal maintenance effort/costs and low noise levels – these are the new double-stage, oil-free screw compressors in the DS series. The process air generation is of course PFAS-free, without compromising on performance and durability. Thanks to the extremely compact design, the machine footprint is small. The smart package concept even facilitates side-by-side installation, as maintenance can be carried out from both the operating and the rear sides. The entire package can easily be transported using a pallet truck, forklift truck or crane. See AERZEN’s new approach to the compressed air industry for yourself.

You will find AERZEN at the Hanover Fair 2025 in Hall 12 at stand D40 (main stand) as well as in Hall 013 at stand B24 (key topic: hydrogen compression).