Compressors Kaeser has redesigned several of its rotary-screw air compressors, including the SM 7.5, SM 10, SM 15 and SFC 8 models. The compressors are suited to provide general shop air, or each unit can be dedicated to serve a large production machine. The SM series units provide airflows ranging from 19 cubic feet per minute (cfm) to 55 cfm and pressures of up to 217 pounds per square inch gauge (psig). The SFC 8 provides airflows of up to 48 cfm and pressures of up to 125 psig.

What’s new? Numerous upgrades. The updated models have a dual-flow fan combined with an outside-facing cooler. The Sigma Control 2 now is standard, replacing the Sigma Control Basic used in earlier versions. The compressors also feature the new Sigma 06 air-end.

Benefits Efficiency and reliability. The Sigma 06 air-end delivers up to 10 percent more airflow than prior versions and as much as 43 percent more flow than competing models. Specific power (compressor efficiency) has been improved by as much as 10 percent compared to prior models. The Sigma Control 2 combines energy-efficient control with access to operating and maintenance information; a built-in web server and communications ports allow for remote monitoring. The dual-flow fan and external-facing cooler improve the effectiveness of downstream dryers and filters in removing contaminants. Additionally, the fan’s die-cast, sickle-shaped blade reduces noise and cools both the drive motor and interior of the machine for greater reliability.

Kaeser Compressors Inc., Fredericksburg, Va., 540-898-5500, www.us.kaeser.com