Ingersoll Rand | News & Events

Ingersoll Rand is Certified Class 0 for Centrifugal, Rotary Screw Air Compressors



Ingersoll Rand is the first manufacturer in the world to be certified Class 0 for centrifugal air compressors. Concurrently, Ingersoll Rand has received Class 0 certification in their oil free rotary screw line of compressors.  The certifications were granted to the entire range of Ingersoll Rand air-cooled and water-cooled oil-free rotary screw compressors (37 to 350kW) and water-cooled, oil-free centrifugal air compressors (160 to 5000 kW) by TÜV Rheinland®, an independent testing and assessment agency.


The most stringent of all ISO 8573.1 classifications, Class 0 certification was added in 2001 in response to critical applications where air purity is essential, such as the pharmaceutical, food and beverage, electronics and textiles industries. The certification recognizes compressors that discharge air free of added oil aerosols, vapors and liquids.


“The rigorous tests performed by TÜV Rheinland show our commitment to providing best-in-class equipment for our customers,” said Eric Seidel, General Manager for Ingersoll Rand Industrial Air Solutions Business Unit. “The Ingersoll Rand Class 0 solution means lower operating costs, improved productivity and risk avoidance.”


With maintenance expenses comprising a significant percent of lifecycle cost, Ingersoll Rand oil-free centrifugal and rotary screw air compressors enable plants to better manage operating costs, minimizing the need for coolant oil, inline filters and oil / air separator components. By eliminating the risk of compressor-created contaminants, air system components last longer and ensure higher quality air.


Ingersoll Rand oil-free technology also helps companies avoid risk. Oil-contaminated air can spoil and ruin products, creating significant losses of revenue and customer trust. High-quality air reduces liability and the potential of product recalls.  

Certified Class 0 air compressors deliver consistently clean air to critical applications. By providing pure air, free from additional contaminants, Ingersoll Rand compressors minimize downtime associated with cleaning filters and other air system components. Oil-free technology increases productivity and ensures higher overall product quality.


Ingersoll Rand oil-free rotary screw and centrifugal air compressors also help manufacturers comply with environmental standards such as ISO 14001 and EU requirements. Because the compressors are oil-free, manufacturers do not encounter disposal issues with waste oil and filtration components. Disposal of air compressor condensation can also be an issue in lubricated compressors. By creating a clean condensate that is easier to dispose, oil-free compressors don’t require special treatment for oil and water mixtures.


Ingersoll Rand is a global diversified industrial firm providing products, services and solutions to enhance the quality and comfort of air in homes and buildings, transport and protect food and perishables, secure homes and commercial properties, and enhance industrial productivity and efficiency. Driven by a 100-year-old tradition of technological innovation, we enable companies and their customers to create progress. For more information, visit


© 2016 Ingersoll Rand. All rights reserved.