Industrial radio frequency generators

What is a radio frequency generator?

A radio frequency generator is designed to generate and send radio frequency energy. This RF energy is used to heat products, and radio frequency generators are, therefore, mainly used in thermal processes. They can be used in various sectors for many applications, such as in the food industry to temper and defrost food or in laboratories to create plasma.

Radio-frequency generators are available as standalone solutions or can be integrated into complete radio-frequency systems as required.

How does a radio frequency generator work?

“Dielectric loss” is at the heart of radio frequency technology: this phenomenon is caused by the vibration and rotation of polarised molecules inside the material, induced by the quick polarity reversal of the electromagnetic field (a million times per second).

A radio-frequency system consists of a RF generator which transforms electric power into radio frequency waves, and electrodes which ensure the transmission of the waves to the product.

Why use a RF generator?

RF generators can offer the perfect solution to improve thermal processes in different industrial sectors. They also represent an energy source than can be used for scientific applications.

Radio frequency generators are ideal to improve heating and drying processes. For the food industry, they allow food products to be quickly tempered or defrosted; but they can also be used in the industrial sector to heat or dry different kinds of materials (ceramics, wood, powder, textiles…) and for chemical processes such as vulcanization or polymerization.

Depending on the applications and benefits sought, radio frequency energy can be provided through different RF systems: generators, industrial oven, or radio frequency tunnels.

Are RF generators safe?

Radio frequency is a form of electromagnetic radiation, which may suggest that it is dangerous. But as it is non-ionizing radiation, its effect does not last over time.

Furthermore, SAIREM and all RF systems in general are closed and fitted with interlocks to prevent radio frequency leakages.

Why use SAIREM RF generators?

The reliability of the radio frequency generators offered by SAIREM is recognized and appreciated equally as standalone or integrated units by many OEMs and research laboratories worldwide. Their modern design allows them to be easily integrated and used in a wide variety of environments.

Our radio frequency generators are designed to operate independently or remotely, with a minimal footprint and good signal stability. They can deliver anything from a few hundred watts up to hundreds of kW with significantly reduced power losses.

SAIREM exclusive 50 Ω technology

SAIREM radio frequency generators work at all authorized ISM frequencies, although most of them are designed to work at 13,56 MHz and 27,12 MHz. Our 50 Ω technology is unique in guaranteeing the perfect stability of the frequency and real power control during the process. Moreover, 50 Ω technology avoids reflected power and extends triode service life up to 20 000 h and 60 000 h, if you choose solid state generators (no triode, no high voltage).

Finally, for layout purposes, 50 Ω technology means that the generator and applicator can be positioned several tens of meters apart.