Sullair Corporation, a business unit of Hamilton Sundstrand, a United Technologies Company, is pleased to announce the expansion of its S-energy® Series compressors. A broad range of these lubricated rotary screw air compressors is now available in both constant speed and variable speed drive models, ranging from 15 (11 kW) to 100 (75 kW) horsepower with capacities of 44 to 500 acfm and pressures from 100 to 175 psig.