Infrared technology

  • Focus heat exactly where it’s needed
  • Heat quickly and precisely controllable
  • efficient use of energy
  • Contactless in-process heating
  • Very short heat-up and cooling-off periods
  • Easy integration into existing production facilities

Because the thermal energy is transferred by electromagnetic radiation, infrared heating processes achieve a high operating efficiency. The irradiated object absorbs the infrared radiation and transforms it into heat.

Besides being considerably faster, the IR method allows for more efficient energy use compared to circulating air ovens. The power output of infrared emitters can be regulated faster and more precisely, which means superior heating possibilities especially with varying material thickness of the objects to be heated. Beside our regular range of systems, we also offer complete solutions custom-built for your needs.

Infrared modules

Optron® infrared modules are compact, short wave or medium wave emitter units with a high performance in industrial drying processes. An integrated fan keeps the casing temperature at an optimal level. The emitters are designed to be easily mounted and combined to create any possible emitter field.

The deciding factors in process optimization in the area of infrared heat are the positioning and the selection of the heating elements. Depending on the application as well as the length of the cycle and the material to be heated, one would either use short wave emitters with high performance output or middle wave IR emitters.

To be used as a single module or in a large array of multiple modules, all of them are fan-cooled and ready for use 24/7. All variants (up to 2.14 m length) in different power classes are in-stock products.

We will gladly assist you with our expertise and conduct tests to find the optimal solution for your needs at our company headquarters in Hanover-Garbsen.

Infrared emitters

Also referred to as radiator, lamp or bulb our high-class infrared emitters are the base of each Optron® module.
We offer a wide range of different lengths, power, construction form and wavelength, many of them in-stock products. In case you can't find a fitting emitter in our standard portfolio, we build your own custom-made emitter in short lead times.

Compared to middle or long wave emitters, short wave technology offers clear advantages, for example in lacquer-drying and plastic treatment. The shortwave energy penetrates the lacquer coating and dries it from the inside. This means being able to work with higher performance output without having to risk bubble formation- which results in a shorter drying time.

Optron® Quality starts at emitter production exclusively in Germany and Europe. The final assembly line of our modules (modular housings) is located in Hanover-Garbsen only. All Optron® products like emitters, modules and power controller are 100 % quality checked at all time.

Spectral energy distribution of various Optron® IR emitters

The IR-modules can be equipped with various IR-emitters of our product line.

The peak wavelength of Optron® shortwave IR-emitters is around 1.2µm. This spectral region has proven perfectly suited for heating solid materials, because the IR energy penetrates deep into the material and ensures an even distribution of heat. E.g. at the drying of lacquer can be processed with high power without having risk of bubble formation – which results in a shorter drying time. The shortwave IR-emitters have the fastest response time. Therefore they are suitable for fast control action.

The peak wavelength of Optron® NIR-emitters is around 0.98µm with the advantage of max. penetration and high emittance. A special cooling system is necessary to ensure the maximum lifetime of the emitters. These emitters were used for hardest application with highest power density.

The peak wavelength of Optron® fast medium wave emitters is around 1.6µm. The advantage is a higher energy absorption of partly or total transparent materials. The depth of penetration is less in comparison with shortwave IR-emitters.

The peak wavelength of Optron® fast medium wave type C emitters is around 2µm. The performance of this irradiation is more effective on most plastics and aqueous solutions than shortwave irradiation. But with decreasing depth of penetration. Response time is approx. 2 seconds. The fast medium wave type C emitters are a new development and replace the previous carbon emitters.

The peak wavelength of Optron® medium wave IR-emitters is around 2.6µm. Medium wave IR-emitters are favoured for heating of plastics or aqueous solutions because energy with this wavelength is better absorbed.

Radiation protection

 

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Power controller

To operate emitters and modules under 100 % of power, it is neccessary to connect them to a power controller. There are different kinds of product lines depending on application and construction (e.g. phase angle control, fast pulse group control, pulse width modulation).

As a part of an automatic power control all Optron® IR-modules can optionally be equipped with a radiation pyrometer. Because of  the different infrared and the pyrometer working spectral range only the true object temperature is measured. Though also the material colour is nearly irrelevant. A control unit can provide the desired irradiation power.

We help you to find your best Optron® infrared setup that fits to your application. Give us a call or write us an E-Mail!

Call us, Phone +49 (0)5131 7083-0e-Mail mail@optron-gmbh.de