The R-Series 37-45 kW (50-60 hp) is the latest model in Ingersoll Rand's contact-cooled Rotary Screw Air Compressor line. The 37-45 kW compressor is equipped with the same V-Shield™ technology as the larger 55-160 kW units. The V-Shield ensures that the compressor’s piping system is composed of stainless steel pipes, metal-flex hoses and elastomeric face seals to prevent leaks. The piping system is also configured to minimize the adverse affects of vibration, including loosening of connections, unwanted flexing in joints, air leaks and extreme noises. Along with the V-Shield technology, the 37-45 kW compressor comes in fixed-speed or Nirvana Variable-Speed Drive (VSD) options. Fixed-speed units are best suited for constant-demand systems; VSD units increase the efficiency of variable-demand applications. The VSD compressor is also equipped with a Hybrid Permanent Magnet motor — the highest-efficiency motor available from Ingersoll Rand — to increase energy savings. The R-Series compressor is manufactured with a sequential cooling system for added operating efficiency. Independently mounted coolers reduce thermal stress, decrease discharge temperatures and lower the energy required to remove condensation in downstream air treatment. As a result, the compressor produces dryer air more cost effectively. Coupled with the sequential cooling system, the compressor’s Progressive Adaptive Control (PAC) continuously monitors filtration and temperatures. This control technology defines operating parameters and eliminates moisture build-up that can damage internal components of the compressor and result in unexpected downtime. The integrated Total Air System (TAS) previously introduced on the 55-75kW Ingersoll Rand R-Series compressors is available on the 37-45 kW units. The TAS combines the dryer and filtration systems into a single package which eliminates air leaks in the piping between units and results in better flow efficiency. The R-Series compressor relies on the Xe-Series controller to continuously monitor vital system data and automatically adjusts to stay within key operating parameters, preventing damage and unexpected downtime. The Xe-Series controller has real-time electronic maintenance indicators and changes the fan speed according to ambient temperature to reduce noise and optimize energy use. The Web-enabled control system allows plant managers to remotely access vital compressor data via the internet by a computer or mobile device with standard web browsers for quicker response times.