Ingersoll Rand R-Series rotary screw air compressors

The Ingersoll Rand R-Series 90-160 kW rotary screw air compressors use progressive adaptive control (PAC) to protect the equipment and prevent unnecessary or emergency shutdowns of production lines caused by extreme situations or maintenance oversights. An integrated, intelligent system, PAC continually monitors key components and operating parameters and adjusts these to prevent unexpected downtime.

For example, on a variable speed unit, should the filtration system start to clog or foul, the PAC will immediately display a real-time warning and maintenance indicator. But unlike conventional compressor controls, should the situation deteriorate, the PAC will not shut down the compressor completely. Instead, the PAC will reduce the airflow so as to not overload the compressor cooling system. This protects the equipment, while giving the end user time to rectify the problem and maintain production without shutdown.

The R-Series comes in four standard variants, designed to suit the load profile and duty required. A fixed-speed version is available with single-stage or two-stage air end, giving up to 15% improved efficiency. For applications where there is significant variation in the air demand, a variable speed version is also available with a single- and two-stage air end driven by a Nirvana hybrid permanent magnet motor.

Typically, a Nirvana motor can save up to 35% in power costs. Incorporating a two-stage air end can potentially add a further 15% saving.