Radio frequency drying, from the inside out
Volumetric radio frequency (RF) heating removes moisture evenly through the full depth of the material, from paper and fabrics to food. Clean electric heat instead of gas.
Uniform drying through the full material depth
Moisture removed from the inside out
Conventional dryers heat the surface with hot air and wait for the heat to conduct inwards, so the outside dries first and the core last. Radio frequency drying heats the water inside the material directly, so moisture is removed evenly through the full depth.
The result is shorter drying, less over-drying at the surface and consistent quality. SolidWatts solid-state RF systems deliver this heat with fine-grain digital power control, and each industrial RF drying system scales from tens of kW for one line to megawatt levels.
- Even moisture through thick materials
- Faster drying than with hot air alone
- Precise, controllable heat
- Electric heat instead of gas burners
RF drying vs conventional drying
| Criterion | RF drying | Conventional drying |
|---|---|---|
| Heating | Inside the material, through its full depth | From the surface inwards |
| Drying profile | Even moisture removal, from the inside out | Outside dries first, core last |
| Energy | Electricity, with minimal losses to the surroundings | Gas burners, losses through flue gas |
| Control | Full digital control, kW-level precision | Slow, indirect, hard to modulate |
Explore by process
The same solid-state RF platform powers other processes, from tens of kW to megawatt levels.
Have a process in mind?
Tell us about your material and process. We'll show you what solid-state RF can do.
1010 Lausanne,
Switzerland