Rotary Screw Compressors range from 350-450 hp.

Press Release Summary:

Featuring one-to-one direct drive technology, FSD Series is available in flows from 1,250-2,003 cfm and pressures to 217 psig. Units include Sigma Control system and oversized airend connected directly to motor via maintenance-free coupling. Available in air-cooled or water-cooled models, compressors include radial fan that minimizes noise levels. All are fitted with separator system for low oil carry over.

Original Press Release:

New FSD Direct Drive Compressor

Reduced Noise Levels!
One-to-one direct drive for maximum efficiency and reliability

Kaeser Compressors Inc. announces the latest additions to our direct drive rotary screw compressor line - the new FSD series compressors in 350-450 hp models. Available in flows from 1250-2003 cfm and pressures to 217 psig, FSD compressors are designed for efficiency, reliability, and minimal maintenance.

These state-of-the-art units feature our optimized Sigma Profile airend, patent-pending Sigma Control system and the latest one-to-one direct drive technology. The FSD units are true direct drive compressors with an oversized airend connected directly to the motor via a maintenance free coupling for maximum efficiency.

Units are now available in either air-cooled or water-cooled models. Kaeser's unique cooling air flow design includes a powerful radial fan that significantly reduces noise levels and provides superior cooling. All models are fitted with a re-designed, high-efficiency separator system for extremely low oil-carry over. And for applications with varying demand, the FSD is also available with variable speed drive.

For more information, please call 800-777-7873 or visit us at

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