Membrane air dryer

Our complete offer of membrane air dryers
Extend your equipment lifespan and increase efficiency with preventative air treatment.
Our SD membrane dryers ensure the highest compressed air quality.
Capacity FAD l/s: 1.5 l/s – 55 l/s
Capacity FAD: 5.4 m³/h – 198 m³/h
Working pressure: 7 bar(e) – 13 bar(e)

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Increase reliability

Water and oil particles in your compressed air increases the risk of corrosion in your air system and air tools. Our membrane air dryers greatly reduces this risk, enhancing your systems reliability and avoiding expensive downtime.

Safety assurance

Our SD dryers meet strict safety and environmental requirements. This includes low flow environments, areas without an electrical supply, explosion-proof facilities, noise-sensitive and corrosion-sensitive areas. No electricity required.

Protect your production

The compressed air that comes in contact with your final products should not affect them. Our air treatment solutions provide clean, dry air that will not affect the quality of your final products.


SD dryers perform well in a variety of environments ranging from small spaces, applications that require flexible mounting and high vibration areas to spaces with widely fluctuating temperatures.

Reduce energy costs

Clean, treated air greatly reduce the risk of corrosion and leaks in your system. Even a 3mm leak could increase your energy bill by up to EUR1800 annually.

Save energy

Thanks to its straightforward design, your compressed air doesn’t make any twists or turns within the housing. The result: minimal pressure drop and the highest drying efficiency.

Meets all requirements

Offering different dewpoint suppressions for the different models, the SD dryer can serve all kinds of performance requirements.

Critical environments

As they are not powered by electricity, SD dryers can function safely in explosion-proof environments such as laboratories.

Low noise levels

Thanks to their quiet operation, you can use SD dryers close to the workplace

Optimal safety and efficiency

Atlas Copco’s SD membrane dryers with pre-filters remove moisture, oil and particles from compressed air in the most demanding conditions. The dryers deliver the lowest pressure drop and purge air loss at the highest possible efficiency – saving you time and money. From small spaces to environments with fluctuating ambient temperatures, SD dryers can perform in a wide variety of harsh and critical conditions. Two models are available to offer you the exact air treatment you require.