Donaldson launches Ultrapac HL heatless desiccant dryer for compressed air systems in North America

The Ultrapac HL dryer uses dewpoint-controlled regeneration to improve compressed air drying efficiency and reduce operating costs.
March 13, 2026
2 min read
Courtesy of Donaldson Company
Donaldson Ultrapac heatless desiccant dryer

Donaldson Company, Inc. has introduced the Ultrapac HL Heatless Desiccant Dryer to the North American market, expanding its compressed air treatment portfolio for industrial manufacturers.

The Ultrapac HL dryer is designed to deliver high-purity compressed air with dew points as low as -40°F and down to -95°F in select configurations. The system supports airflow capacities ranging from approximately 150 to 850 cubic meters per hour, equivalent to 90 to 500 standard cubic feet per minute.

According to Donaldson, the dryer is manufactured in the United States and can be configured to support a wide range of compressed air system sizes and performance requirements.

Marc Straub, Technical Product Specialist at Donaldson, said the dryer is designed to support ISO 8753-1 compressed air quality requirements. He added that the product launch strengthens the company’s ability to support customers locally while drawing on Donaldson’s global engineering expertise.

The Ultrapac HL dryer uses a heatless regeneration design that eliminates the need for external heaters. Instead, dewpoint is used to trigger the regeneration process, helping maintain optimal drying performance while improving energy efficiency.

Donaldson said the technology helps manufacturers protect downstream equipment from moisture, maintain process integrity, and improve compressed air system reliability.

This piece was created with the help of generative AI tools and edited by our content team for clarity and accuracy.