Ingersoll Rand’s latest additions to its rotary screw air compressor line are the efficient, low-cost of ownership 5- to 15-hp (4- to 11-kW) and 15- to 50-hp (11- to 37-kW) models and the Nirvana variable speed drive 7.5- to 40-hp (5.5- to 30-kW) units. All the compressors are built around reliable, low-speed airends and motors that deliver more air for less horsepower, cutting energy costs and extending compressor lifespan. Smart integration - with 70 percent fewer connections - eliminates leaks and pressure drops, maximizing reliability. The compressors are also designed for easy operation and installation, with small footprints to help save space. The easy-to-use operator interface, convenient location of the service panel and easy access to internal components simplify maintenance and enable shops to install the unit close to a wall. Smart, energy-efficient controls eliminate wasteful unloaded running by quickly cycling the compressor off when not needed.