Adsorption Dryer — Externally Heated (40 bar)

A heated adsorption dryer delivers extremely dry compressed air with a pressure dew point of -40°C — significantly drier than the heatless variant. The built-in heating makes the regeneration process more efficient, meaning only 4–6% of the compressed air needs to be used as purge air, compared to 12–15% for the heatless variant.

The system uses activated alumina or molecular sieve as adsorbent and operates in cycles of 60–180 minutes. The lower purge air consumption means more of the produced compressed air is available for production, resulting in lower total operating costs at high capacity demands. Inlet oil content below 0.01 ppm ensures long service life for the desiccant.

With capacities from 1.2 to 130 m³/min, the heated adsorption dryer is the right choice for demanding applications such as cold storage, freezer storage, pharmaceutical production and electronics manufacturing — anywhere where a -40°C pressure dew point is required and operating economy is important.