Industrial Utility Efficiency    

Ingersoll Rand Introduces New Subfreezing Dryer with Breakthrough Refrigeration Technology

Ingersoll Rand SFDSubfreezing Dryer delivers Class 3 air previously only achieved by desiccant technologies.

Ingersoll Rand® has introduced its new dryer technology, the Subfreezing Dryer. By incorporating its 146 years of engineering expertise and heritage, Ingersoll Rand has designed a dryer that is the first of its kind. The Subfreezing Dryer is the world’s first dryer that provides -4 °F pressure dew point at 70% lower energy costs and 40% smaller footprint than that of traditional desiccant dryers. Ingersoll Rand’s new Subfreezing Dryer is compatible with oil-flooded rotary compressors, oil-free rotary compressors, centrifugal compressors and reciprocating compressors.

“The new Subfreezing Dryer achieves class leading air quality, previously only attainable with far costlier drum or desiccant dryer technology. We have developed new technology that provides our customers with high quality, -4 °F dew point air, from a high performance regenerative refrigerant dryer in an efficient and economical package,” said Nathan Blasingame, Global Portfolio Leader for Air Treatment and System Components for Compression Technologies and Services at Ingersoll Rand. “This breakthrough technology provides very dry air without wasting energy or purging compressed air; customers have the full capacity of their compressor.” 

The Subfreezing Dryer supplies a constant ISO Class 3 -4 °F pressure dew point air, regardless of changes in demand or ambient temperatures. This allows customers to dependably meet the compressed air needs of their operation.

“Whether customer’s needs are general purpose, or they are manufacturing critical products such as pharmaceuticals, the Subfreezing Dryer delivers the air quality they need,” Blasingame said. “The high-efficiency, superior operating cost alternative – Ingersoll Rand’s groundbreaking Subfreezing Dryer – provides real customer value.”

The Subfreezing Dryer has a lower total cost of ownership than traditional regenerative desiccant dryers and has an 80% lower maintenance cost than drum dryers. Unlike drum and desiccant dryers, there is no costly periodic desiccant replacement, and with no desiccant required, downstream particulate filtering is not needed.


About Ingersoll Rand

Ingersoll Rand advances the quality of life by creating comfortable, sustainable and efficient environments. Our people and our family of brands—including Club Car®Ingersoll Rand®Thermo King® and Trane®—work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables; and increase industrial productivity and efficiency. We are a $14 billion global business committed to a world of sustainable progress and enduring results. Ingersoll Rand products range from complete compressed air and gas systems and services, to power tools, material handling and fluid management systems. The diverse and innovative products, services and solutions enhance our customers' energy efficiency, productivity and operations. For more information, visit or