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DSD Series Compressors
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Certified Performance! DSD SERIES Capacities from: 424 to 1024 cfm Pressures from: 80 to 217 psig Screw Compressors

Direct Drive Rotary Screw Compressor Airend Speed Sigma Profile Airend for Superior Efficiency Our single-stage, flooded rotary screw airend delivers pressures up to 217 psig. It features our power saving Sigma Profile™. The superior design and construction produce the best in energy efficiency and long life. One-to-One Direct Drive Some compressors claim to have direct drive but actually use gear drives. Our drive connects the motor directly to the airend with a maintenance free coupling, providing maximum transmission efficiency. The airend and motor are connected by a casting which is...

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1 2 4 3 Airend RPM = Motor RPM 6 Reduced Voltage Starting Magnetic Wye-Delta reduced voltage starting is standard. This energy saving feature ensures low starting current and smooth acceleration. 5 5 Inlet Filter Two-stage 4-micron air intake filter extends airend life and is easily serviced. 6 7 8 Airend Coupling Drive Motor One-to-One Direct Drive

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Superior Cooling Design Standard units are air-cooled (water-cooling is an option). Coolers are conveniently located on the outside of the unit. Dust and dirt build-up is easily seen and removed without dismantling the coolers. Three separate cooling air inlet zones for the coolers, compressor, and drive motor ensure optimum performance. Drawing ambient air directly across the coolers and motor through separate zones avoids preheating and results in lower approach temperatures, longer lubricant life, and cooler motor temperatures. A powerful radial fan provides higher static pressure which...

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Options Water-Cooled Standard units are air-cooled, but water-cooling is available. Sigma Frequency Control All DSD units are available with optional SFC drive. This provides the ultimate in part-load efficiency and stable pressure (within +/- 1psig). Kaeser uses Siemens’ variable frequency controls for reliability and maximum efficiency. EMI filter, contactor for galvanic separation and a line reactor are all standard on Kaeser SFCs. Drive cabinet cooling fans ensure reliable operation even in the toughest environments. Refrigerated Dryer Option • Single point hook-up integrated dryer •...

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The Air Systems Specialist With over 85 years of experience, Kaeser is the air systems specialist. Our extensive 100,000 square foot facility allows us to provide unequaled product availability. With service centers nationwide and our 24-hour emergency parts guarantee, Kaeser customers can rely on the best after-sales support in the industry. Kaeser stands committed to providing the highest quality air system for your specific compressed air needs. Corporate Headquarters: PO Box 946 Fredericksburg, Virginia 22404 Phone 540-898-5500 Fax 540-898-5520 www.kaeser.com © 2009 Kaeser Compressors,...

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