A specialization of RF Technologies Corporation lies in the application of precision high power microwave technology for
enhancement of production processes for engineered wood applications. A major leap in efficiency and quality in manufacturing
process technology for engineered wood products such as LVL, OSB, LSL, MDF, Particle Board, I Joists, Strawboard and many
other products can be instantly realized when properly applying microwave technology. RF Technologies Corporation engineered,
developed, patented and manufactured the first wide-billet microwave pre-heating system for EWES Enterprises, LLC. In 1996
EWES was owned by a group including some individuals as well as RF technologies Corporation and Dieffenbacher GmbH & Co.
in Germany. Dieffenbacher is now the sole owner of EWES, with License rights back to RFT.

The world’s first continuous LVL press line was completed in Canada in 1998. RFT’s design of the EWES System incorporated the
DualField(trademark) Circular Magnetic Mode to implement an LVL microwave pre-heating system. This system was installed at
the in feed of a Dieffenbacher continuous press. After more than two years of operation, plant production engineers at the mill
calculate that the microwave heating system essentially doubles the line’s capacity, and greatly enhances the quality of the final
product and boosts the yield of the complete process.
           
    This is a view of a typical LVL Press Line with the Microwave
Pre-Heating System shown at the In-Feed portion of the continuous
press. (The feeder and lay-up lines are located ahead of the
Microwave Pre-Heating System.)		  
     
     
         
   
                   
             
Here is a closer view of the top portion of the Microwave
Pre-Heating System installed directly at the In-Feed of the
continuous hydraulic LVL press.		  
     
  A view of the three high power precision industrial microwave
power sources that are housed in a room next to the heating
system by a special rectangular waveguide system, seen
here at the top of the three power sources.
 
     
LVL Pre-Heating System Features
• Occupies only ten feet of press line length
• Patented Technology, (U.S. Patent Numbers 5,756,975 & 5,892,208. Other Patents Pending)
• Complete Ethernet Control of the system from the press control room by "point and click visualization control.
• Delivers 300 kilowatts of microwave power to the production billet.
• Delivers preferential heating power to the center of the billet where it is most needed.
• Extremely even heating over the billet area.
• Each applicator is automatically tuned individually.
• Much higher power systems are available for higher mass flow applications, (more than 2 Megawatts)
• Allows for Higher Moisture Control in the Veneers or Raw Product Furnish
• Enhanced Cure Quality
• Hastens Normal Exothermic Post-Cure Heating
• Modular Contruction on all Major Components for Easy Maintenance
       
 
 
RF Technologies, LLC, 1 Gendron Drive, Lewiston, ME 04240
Tel: 207-777-7778 • Fax: 207-777-7784 • email: info@rftechnologies.net • www.rftechnologies.net