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RF DRYERS FOR MULTIWALL BAGS A new RF drying system for converters of multi-layer bags that permits the application of water-based, pressure seal adhesives at fast web speeds is being introduced by Radio Frequency Co., Inc. of Millis, Massachusetts. The Macrowave™ RF Drying System for multiwall bag converters lets them use water-based, pressure seal adhesives rather than expensive UV curable adhesives or hot melt systems. Developed for 50" to 100" wide webs, this dryer lets converters apply and dry water-based pressure seal adhesives when the bag is formed to provide their customers with a faster sealing technique.  Capable of operating at web speeds up to 1000FPM, the Macrowave™ RF Drying System selectively heats only the wetted sections on the web and requires one-third the floor space of hot air and IR dryers and provides up to 80% energy savings. This RF drying system is UL and CE approved and meets all OSHA safety regulations and FCC standards on communication non-interference. The Macrowave™ RF Drying System for multiwall bag converters is priced from $60,000 up, depending upon configuration. Literature and quotations are available on request.
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