Atlas Copco introduces compact compressor technology with breakthrough energy-efficiency
April 2013, Wilrijk, Belgium – On Hannover Messe 2013, Atlas Copco surprised the market with a new, very compact oil-injected rotary screw compressor from 7 to 37 kW: the 7-37 GA VSD+. Besides a small footprint, it offers a leap forward in Free Air Delivery (improvements of up to 12%), and a breakthrough energy-efficiency: it requires on average 50% less energy than a comparable idling compressor. This new type of compressor offering a variable speed (frequency-controlled), will be suitable for most industries and aims to contribute significantly to the green economy needs.
Koen Lauwers, Vice-President Marketing from the Industrial Air Division comments: “In 1994, Atlas Copco pioneered the Variable Speed Drive compressor and now we have launched an innovation that will once again set the benchmark in the compressor industry. The GA VSD+ has been completely in-house developed and brings together all our expertise and know-how about energy-efficient compressor technology”.
Innovation with oil-injected, oil-cooled compressors
Engineers could realize significant improvements with the new GA VSD+ thanks to the introduction of an interior permanent magnet motor. This new in-house designed motor achieves an efficiency corresponding to IE 4 (Super Premium Efficiency motor class). The motor and drive train share one drive shaft and are vertically aligned to allow a smaller footprint of 55% compared to the previous range. The whole drive train is completely closed and one oil-circuit cools the motor and lubricates the element and bearings. The result is a quiet (down to 62 db(A)), reliable and compact compressor that saves space and energy while achieving higher air capacities at the same time.
Small compressor, big ideas
Atlas Copco evaluated every part in this compressor: a more efficient fan, robust air intake system, eliminating all blow-off losses, and the best electronic components together with the new drive train add up to energy savings of 50% on average compared to a traditional idling compressor of the same type. The new GA VSD+ is another 15% more efficient than Atlas Copco’s current Variable Speed Drive compressor (the GA 7-37 VSD). A full feature version with an integrated dryer is available as option.
Several key components like the drive train as well as for the general design of the GA VSD+, are protected by Atlas Copco, with many patents on their way.
Available as from today
Atlas Copco also adapted its production environment to the future: the GA VSD+ is currently built in Antwerp, Belgium, on a production line that is more efficient, more standardized and that takes less space. Furthermore, 90% of all components originate from West-Europe, allowing for speedier delivery and reducing transport time and costs. The production of the new compressor is up and running and Atlas Copco is ready to receive customers’ orders.
For further information please contact:
- Bert Derom, Product Manager Oil-injected Screw Compressors
Industrial Air is a division within Atlas Copco's Compressor Technique business area. It develops, manufactures and markets oil-injected and oil-free air compressors, vacuum pumps, gas generators, air treatment solutions and compressor controls and monitoring under several brands. In addition to serving a wide variety of industries, dedicated solutions are also available for marine, railway and oil and gas customers. The division's focus and main drive is to further improve its customers' productivity. The divisional headquarters and main production center are located in Antwerp, Belgium.