Kaeser Variable Speed Drive Rotary Screw Compressors, Nos. SFC 18S and SFC 22S, feature an airend specifically designed to optimize performance and efficiency. They come standard with TEFC premium-efficiency motors and the enhanced cooling design ensures the overall package is ready for severe operating conditions. The SFC 18S has a flow range of 33-119 cfm at 125 psig and is available with pressures up to 217 psig. The SFC 22S has a flow range of 33-141 cfm at 125 psig, with pressures up to 217 psig. Both models offer Siemens drive technology and they are also available with an integrated dryer for premium compressed-air quality.