“DSD” Rotary Screw Compressors – Fit for the
Efficiency Olympics
Overall Efficiency is Key
‘It is the person with superior power and performance who wins the
race’ - This maxim applies equally well to competitive sports as it
does to the (energy-) efficiency of rotary screw compressors. A true
efficiency champion therefore has to meet all demands on all levels
in order to beat the rest of the field.
In any competitive event, the winners are those who are able to stay strongest until
the end. With this in mind therefore, DSD series rotary screw compressors from
Kaeser Kompressoren are certainly a force to be reckoned with. Offering free air
deliveries from 13 to 24 m³/min (at 7.5 bar), these premium quality compressed air
systems are designed to provide maximum overall efficiency rather than just to
accommodate sporadic performance peaks.
The DSD’s versatile design has 4 key advantages that enable users to benefit
from significant energy savings:
1. DSD units feature a large, low speed Sigma Profile airend (1500 rpm)
equipped with flow-optimised rotors. This results in low energy- and
maintenance requirement, maximum availability and outstanding durability.
2. Kaeser rotary screw airends are powered by IE3 rated drive motors for
exceptional performance and reliability.
KAESER KOMPRESSOREN SE – P.O. Box 21 43 – 96410 Coburg, Germany
Phone: +49 9561 6400 – www.kaeser.com – E-mail: productinfo@kaeser.com
Press office: +49 9561 640-452 – Fax: +49 9561 640-130
E-mail: daniela.koehler@kaeser.com
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3. Kaeser’s highly efficient 1:1 drive design eliminates the transmission losses
associated with gear or V-belt driven systems, as the motor directly drives the
airend.
4. The internal PC-based “Sigma Control 2” compressor controller enables
compressor performance to be precisely matched to actual air demand. This
results in further energy savings due to reduced idling operation.
DSD units are also equipped with a highly effective cooling system, which uses an
innovative radial fan that draws cool ambient air in through the cooler. The system
prevents the cooling air from being pre-warmed and, as a result, optimises the
cooling effect. This in turn enables low compressed air discharge temperatures and
significantly increases the efficiency and reliability of downstream compressed air
treatment components, such as dryers and filters – even at extreme summer
temperatures. In addition, the cooling system further reduces sound levels of these
already quiet running compressor units.
Another feature of the DSD range is its compact, modular design. At the heart of
each system is a high performance DSD rotary screw compressor, which can be
complemented by a thermally shielded refrigeration dryer module as required. This
option not only provides both efficient compressed air production and drying, but also
means that this compact package requires far less floor space than a comparable
conventional system. Furthermore, the cooling system and its precise tailoring to suit
dryer performance make a significant contribution to the energy efficiency of the
system as a whole.
As the use of variable speed drive has significant advantages for certain applications,
all DSD models, including those with the refrigeration dryer module, are available
with Kaeser’s Sigma Frequency Control (SFC).
Moreover, the Sigma Control 2’s capabilities are not just restricted to the compressor
unit, as it can also monitor and automatically manage individual compressed air
KAESER KOMPRESSOREN SE – P.O. Box 21 43 – 96410 Coburg, Germany
Phone: +49 9561 6400 – www.kaeser.com – E-mail: productinfo@kaeser.com
Press office: +49 9561 640-452 – Fax: +49 9561 640-130
E-mail: daniela.koehler@kaeser.com
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systems, such as the dryer and/or frequency control module, and enables the
compressor package to be remotely accessed via a modem (Teleservice). Interfaces
are also provided as standard for quick and easy connection to master control
systems and data networks.
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Kaeser’s energy-saving DSD series rotary screw compressors (model shown with
frequency control) are highly efficient and provide outstanding performance.
KAESER KOMPRESSOREN SE – P.O. Box 21 43 – 96410 Coburg, Germany
Phone: +49 9561 6400 – www.kaeser.com – E-mail: productinfo@kaeser.com
Press office: +49 9561 640-452 – Fax: +49 9561 640-130
E-mail: daniela.koehler@kaeser.com