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Media / Novità su prodotti e servizi / Atlas Copco completed and improved its water-injected AQ screw compressor range with new air-cooled units

Atlas Copco completed and improved its water-injected AQ screw compressor range with new air-cooled units


In January 2007, the Industrial Air Division of Atlas Copco Airpower introduced its newest AQ water-injected screw compressor range, with an installed motor power going from 30 to 55 kW and including amongst others two VSD models (AQ 37 VSD and AQ 55 VSD).  Now the AQ range is complete, offering following versions: air-cooled, water-cooled, Workplace, Workplace Full-Feature, fixed speed and variable speed drive (VSD). 


The new AQ range is designed to be energy-efficient with an incredible low noise level and offering a much better flow. The compact, ergonomic design allows easy maintenance.  When it comes to clean, oil-free compressed air, the customer cannot afford to compromise on air quality. Setting the standard for air purity through ISO 8573-1 CLASS 0 certification, the AQ water-injected screw compressors meet the customer’s needs for pure oil-free air while offering high-pressure capability and improved energy efficiency.

Why should customers opt for AQ?

Whether their activities are in pharmaceutical production, food processing, critical electronics or in a similarly exacting industry, air quality is of paramount importance for their end product and production processes.  Developed especially for applications demanding the highest level of purity, Atlas Copco’s AQ oil-free compressors eliminate the risks of oil contamination as well as the involved extra costs.

The superior cooling capability of water ensures that the heat is removed efficiently at the source. The low temperature of the compressed air reduces the stress on components, ensuring long life. A highly efficient compression process is achieved thanks to high quality polymer ceramic rotors with optimum profiling. As the element bearings are water-lubricated and slide on the water, their lifetime is extended and a smooth rotation of the element is ensured. The noise level is also reduced considerably. Contrary to traditional compressor set-ups, Atlas Copco’s AQ WorkPlace Air Systems effortlessly fit onto every work floor. Pressure drops, need for external dryer, costly piping systems, multiple connections and air leaks are avoided using the AQ solution. Advantages are: less noise operation, no need for separate compressor room, lower installation and energy costs.

The improved performance (5% more flow) is a direct result of the many innovations that have been introduced into the AQ compressor package. All these innovations result in an all-in-one package with supreme energy efficiency and optimum reliability. 
Some of the innovations are: 
  • the first air-cooled unit with extremely low installation costs;
  • the introduction of a new over-sized   water-water heat exchanger in water-cooled units, providing a continuous water temperature at the dryer inlet of less than 55°C without after cooler; 
  • new vacuum unloader that simplifies service and allows easier regulation;
  • new patented seals and hydrodynamic bearings. 
The new air-cooled and water-cooled AQ 30-55 range offers our customers highly reliable and energy-efficient Class 0 certified oil-free machines with more FAD, more value for their money, flexibility in selection, savings on operating, installation and maintenance costs. These are only some of the major customer advantages.

More information

Mercedes Hernandez
Product Manager 
+32 3 870 24 84

Nathalie Van Tassel
Communications Manager 
+32 3 870 97 62


Atlas Copco è leader mondiale nella fornitura di soluzioni per la produttività industriale.

I prodotti e i servizi offerti variano dalle apparecchiature per gas e aria compressa, gruppi elettrogeni, apparecchiature per cantieri e miniere, utensili industriali e sistemi di assemblaggio ai relativi servizi di noleggio e post-vendita. In stretta collaborazione con i clienti e i partner commerciali, e con più di 130 anni di esperienza, Atlas Copco è impegnata nello sviluppo di innovazioni per una produttività superiore. Con sede principale a Stoccolma, Svezia, il gruppo copre più di 170 mercati in tutto il mondo. Nel 2007 Atlas Copco impiegava 33.000 dipendenti per un fatturato di 63 miliardi di corone svedesi (SEK).

Divisione Industrial Air

Industrial Air è una divisione della Business Area di Atlas Copco Compressori e Gruppi Elettrogeni. Sviluppa, produce e commercializza compressori d'aria oil-free e ad iniezione d'olio e soluzioni per la qualità dell'aria in tutto il mondo sotto diversi marchi e per tutti i tipi di industria. L'attività della divisione è incentrata sui servizi professionali e sulle soluzioni di connettività e di monitoraggio dell'aria finalizzati a fornire una maggiore produttività ai clienti. La sede principale della divisione e i centri di produzione più importanti sono ubicati a Anversa, Belgio.