New RF Dryer Combines Volumetric Heating & Pressurized Hot Air

New Zepher-Series is used for the drying of granulated industrial materials and food products.

Kevin Cronin, Editor-in-Chief

May 16, 2024

1 Min Read
RF dryer
Radio Frequency Co. introduces the Zepher-Series for the drying of granulated industrial materials and food products. Radio Frequency Company, Inc.

Radio Frequency Company, Inc. introduces the new Zepher-Series for the drying of granulated industrial materials and food products. 

Radio frequency (RF) dryers have long been utilized for the drying of bedded materials due to their volumetric heating and ability to penetrate deep bed depths. RF energy will selectively heat materials where the moisture content is greatest making it ideal when drying the moist core of a product becomes problematic or inefficient with conventional drying technologies.

RF energy will vaporize moisture in-situ and in past systems, the water vapor would exit the bed of material through natural convective currents. The new Zephyr-Series employs a pressurized lower electrode array that forces hot air up through an open-weave conveyor belt to actively, yet gently, force the water vapor away from the bed where it is then exhausted from the system. Factory trials have demonstrated a 28% increase in drying efficiencies with this new approach.

Radio Frequency Company, Inc., Millis, MA 508-376-9944 www.radiofrequency.com

About the Author(s)

Kevin Cronin

Editor-in-Chief, Powder & Bulk Solids

Kevin Cronin has been editor-in-chief, Powder & Bulk Solids, for 30 years. For several years, he also edited food and chemical industry publications. He received a B.A. in communications—with a concentration in journalism—from the University of Scranton, Scranton, PA, in 1988.

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