Compressed air contains moisture (water vapor, droplets), oil, debris and other foreign matter. Filters and mist separators can be used to remove droplets, oil, debris, and so on, but a dryer is necessary to remove water vapor.
You need air dryer when you have any of these problems
Dehumidification of compressed air can be a proactive way to prevent various problems from occurring.
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Refrigerated compressed air dryers offer protection from wet compressed air. SMC has an extensive range of refrigerated compressed air dryers to complement its extensive range of compressed air filtration products.
Refrigerated Air Dryer