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Refrigerated Dryers

The Importance of Clean, Dry Compressed Air
Water jeopardizes everything you want your compressed air system to do. It ruins product and fouls processes. Removing it is vital in order to protect both your equipment and your operations.

Sullair Refrigerated Air Dryers reliably remove harmful moisture and contaminants from compressed air, helping protect your compressed air system, machinery and downstream tools.

Refrigerated Dryer Types

  • Non-Cycling: Non-cycling dryers are ideal for running at full load because they maintain a constant energy consumption no matter the flow and air demand. Using a hot gas bypass, they maintain a consistent dew point and control the amount of refrigerant circulating through the dryer. 
  • Digital Scroll: Advanced digital scroll technology saves the highest amount of energy possible in a refrigerated air dryer — up to 91% while in operation. Communication with the system evaporator — via temperature probe — adjusts refrigeration capacity to the temperature exiting the dryer while maintaining a consistent dewpoint.

The next generation of Sullair Refrigerated Air Dryers focuses on high quality manufacturing standards, durable packaging and consistent, reliable dew point performance in all flow conditions.

Models vary by region. Please contact your Sullair sales representative for more details.

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Specs Contact Us


20 – 30,000 cfm
.57– 849.5 m³/min

Sullair Refrigerated Air Dryers are available in the following configurations:

  • ATRH — Refrigerated High Temperature — 20 to 125 scfm
  • ATRN — Refrigerated Non-Cycling — 25 to 1000 scfm
  • ATRX — Refrigerated Extreme High Pressure — 20 to 275 scfm
  • ATRP — Refrigerated High Pressure Stainless Steel — 45 to 1000 scfm
  • ATRD — Refrigerated Energy Saving — 200 to 2000 scfm
  • ATRS — Refrigerated Digital Cycling — 1000 to 10,000 scfm
  • ATRDE — Refrigerated Large Flow Energy Saving — 4000 to 30,000 scfm
  • ATRME — Refrigerated Thermal Mass — 4000 to 30,000 scfm

    Sullair Refrigerated Air Dryers are built for durable performance, optimum reliability and feature:

    • Stainless steel heat exchangers for consistent dew point and corrosion resistance
    • 3-in-1 heat exchangers with internal separator and evaporator provide simplified maintenance and parts and reduce size
    • Advanced digital scroll compressors for the highest performance with reduced power and energy consumption (200 scfm and above)
    • Zero air loss drains to remove condensate from the system without losing compressed air
    • Environmentally friendly R-134a and R-404a refrigerants standard
    • High heat transfer and large flow areas ensuring low pressure drop
    • Easily serviceable cabinet
    • Durable powder coated cabinets on enclosed models to protect the inner workings of the dryer from harsh environments
    • Units with three phase voltage have a phase monitor to protect the compressor while eliminating possible phase reversal, loss and unbalance
    • Electronic Unit Controller for easy service (200 scfm and above)