Heatless air dryers rely on the adsorption principle to remove moisture from compressed air. These dryers use a desiccant material (activated alumina) to trap water vapor that compressed air would contain. The process typically involves two towers filled with desiccant material. In one tower, compressed air passes through and gets dried as moisture is adsorbed by the desiccant. Meanwhile, the other tower undergoes a regeneration cycle, where a small portion of the dried air is diverted to remove moisture from the saturated desiccant. Heatless dryers use a fraction of the dried air for regeneration, making them energy-efficient but with a lower drying capacity compared to heated dryers.
Discover the HSHD series for compact heatless air dryers, offering wall mounting flexibility and an impressive airflow of up to 70m3/h. If you are seeking a stand-alone heatless unit with precise dew-point control and a generous airflow capacity of up to 9,000 m3/h, explore the HHL series.