Kaeser’s belt drive Rotary Screw Air Compressors feature the Sigma Profile airend and offer reliability and efficiency, says the company. Packages are designed for ease of maintenance and deliver ultra-low noise levels, adds the company. The Rotary Screw Air Compressors are available in 3 – 20 HP. The company also offers the compressors as a complete AirCenter with refrigerated  dryer, tank and drain.