Macrowave RF Drying System

A radio frequency drying system that provides greater efficiency than conventional web dryers and enables the high-speed drying of water-based patterned glue and coatings at line speeds previously reached only with solvent based coatings, is being introduced by Radio Frequency Co., Inc. of Millis, Massachusetts.

The Macrowave RF Drying System, in patterned coating applications, selectively heats only the coated portions on the web leaving the bound moisture in the substrate intact, thus preventing over-drying, distortion, and shrinking. Capable of operating at speeds up to 1500 FPM, this system needs one-fifth to one-third of the floor space required for hot air and IR dryers, permits lower web temperatures, and provides up to 50% energy savings.

Eliminating the long dwell times associated with conventional heating methods, the Macrowave„· RF Drying System reduces make-ready time because RF power is instant ¡§on/off¡¨ and energy is only consumed in proportion to the load in the system. The Macrowave„· RF Drying System can be configured to handle webs up to 120" wide and meets OSHA safety regulations and FCC standards on communication non-interference.

Feasibility studies and quotations are available on request.