When air is compressed, the process concentrates the moisture naturally present in the atmosphere, resulting in a compressed air stream that can be damaging to moisture-sensitive downstream equipment. Air dryers are used to remove that moisture and safeguard your system. Columbus Compressor offers solutions ranging from standard refrigerated air dryers — which achieve dew points of approximately 45°F — to advanced desiccant models capable of reaching dew points as low as -100°F, ensuring the right level of moisture control for your specific application.

MBL Series

Mikropor MBL Series Blower Purge Heated Desiccant Air Dryers provide constant -40 °F pressure dew point with No Purge Air Losses. These energy efficient dryers are designed to supply clean and very dry compressed air for critical applications. Pre-filters and after-filters are standard offerings on all Mikropor Blower Purge Air Dryers to keep the air stream clean and maintain the integrity of the desiccant medium. A centrifugal blower and high efficiency heater eliminates the use of valuable compressed air to be used for desiccant regeneration. The completely automatic drying system uses blower to pull ambient Air and pass it through the heater. This hot Air stream flows opposite to drying flow direction. Hot Air above 392°F regenerates the moisture inside desiccant bed and strips it completely of all moisture. The advanced control system monitors the dew point and adjusts the heating / regeneration accordingly thereby providing valuable energy savings.

MCY Series

Advantages • Best-in-class low package pressure drop saves energy consumption from the supplying air compressor. • Thermal mass technology offers stable pressure dewpoint at varying loads. • Mikropor state of the art “3 in 1” cast aluminum heat exchanger provides unmatched longevity & cooling. • Glycol cooling components are all stainless steel. • 150 F Max inlet temp design max air flow. Advanced “3 in 1” Heat Exchanger Thermally Optimized Encapsulated Design • Air to Air Exchanger • Thermal Mass to Air Exchanger • Multistage Moisture Separation High Strength Aluminium Design Large Surface Area for Heat Transfer Robust Cylindrical Casing Scroll Refrigerant Compressors: • Have fewer moving parts • Offer smoother and quieter operation • And are more reliable and more efficient than reciprocating types Digital controller and onboard filters (up to 2750 CFM) are standard

MHL Series

Mikropor MHL Heatless Desiccant Air Dryers provide constant -40 °F ( -94 °F Optional ) pressure dew point. These dryers are designed to supply clean and very dry compressed air for critical applications. Pre-filters and after-filters are standard on all Mikropor Heatless Air Dryers to keep the air stream clean and maintain the integrity of the desiccant medium.

MK Series

Digital Controllers  Digi-Pro digital controller is standard on MK-US10 - MK-US425 ESD digital controller is standard on MK-US550 - MK-US5000 Zero Clearance Compressed Air Filters with High Performance Elements Compressed Air Filter kit is standard on the Mikropor Dryers. The filter with X Element (coalescing filter for water removal) is used for up to 1 micron particles and the Filter with Y Element (coalescing filter for oil removal) is used to remove oil down to 0.01 ppm. Zero clearance design helps service technicians to replace the element in minutes. Mikropor Refrigerated Air Dryers are designed by engineers who have received all of the design feedback from field engineers and service technicians. This service friendly design makes Mikropor dryers very unique in the industry. Dryer Filter kit which has two elements, two viton o-rings helps the customers to operate the dryer at its best performance until the next planned maintenance. Columbus Compressor keeps many models in stock

MMD Series

The light weight modular design of the NEW dryer series brings a whole new concept in compressed air technology, offering total installation flexibility to meet specific needs. Mikropor’s new Modular Desiccant Dryers are less than the half weight and size of a traditional twin tower design, allowing even the largest models to be easily moved through a standard doorway. Mikropor’s innovative Modular Air Dryers make it easier and more affordable than ever to deliver high-quality compressed air for virtually wherever it’s needed.

Frequently Asked Questions About Compressed Air Dryers

Why do I need an air dryer with my compressor?

Downstream equipment is typically sensitive to moisture in all its forms. Whether it's sophisticated robotics, pneumatic control valves, or simple conveying systems, introducing water into these components can significantly shorten their service life — making an air dryer an essential part of any well-designed compressed air system.

What's the difference between refrigerated and desiccant air dryers?

Refrigerated air dryers work by passing compressed air through a refrigeration circuit, cooling it to condense and remove moisture. Desiccant dryers, on the other hand, utilize absorbent material housed in towers — alternating between the two to purge accumulated moisture from one tower while maintaining continuous, consistent drying on the other, achieving a significantly deeper dew point.

The right choice depends on your application requirements. Refrigerated dryers are well-suited for most general industrial uses, while desiccant air dryers are the appropriate solution for medical applications, outdoor piping in cold climates, or any process that demands extremely dry air.

How long do these dryers typically last?

The typical service life of a refrigerated air dryer ranges from 5 to 10 years, with desiccant models generally offering greater longevity due to their more robust construction and serviceable components. That said, with proper care, dryers can far outlast that benchmark — in fact, our team still services units that are 15+ years old.

Do I need to know my purity class to get the right dryer?

Equipment manufacturers will often specify an air purity class requirement without much further explanation, leaving many customers uncertain about what that means in practical terms. That's where our technical expertise comes in. Our team has the knowledge and experience to interpret those specifications and engineer the right combination of filtration and drying systems to ensure your compressed air meets the required quality standards — taking the guesswork out of a critical part of your operation.