Kaeser Compressors, Inc. announces a new generation of 37 and 45 kW variable frequency drive rotary screw compressors. With pressures up to 217 psig, these new SFC 37 and 45S models are easy to maintain and offer sustainable energy savings. The SFC 37 has a flow range of 54 - 240 cfm at 125 psig, while the SFC 45S has a flow range of 60 - 273 cfm at 125 psig. The series' energy efficiency was enhanced through a combination of true direct drive design, efficiency motors, lower internal pressure differential and optimized airends. Specific power is improved by up to 6% and built-in heat recovery options increase the energy savings potential. New features include an enhanced cooling design, eco-friendly filter element, integral moisture separator with drain and an electronic thermal management system. These compressors also come standard with Sigma Control 2, which offers compressor control and monitoring with enhanced communications capabilities for easy integration into plant control/monitoring systems. SFC models are also available with an integrated dryer.