Microwave tunnel oven systems are the masters of efficiency. These systems allow products to be dried or heated at high speed by using a conveyor belt.
We have optimised numerous production lines with our know-how in the microwave process. The advantages of microwave technology are obvious: significantly shorter heating times and thus optimised production runs, fewer interruptions, energy efficiency through direct irradiation of the product and gentle treatment.
Some of the important application examples for drying and heating of products are:
- Drying of technical ceramics such as diesel particulate filters
- Drying of hollow fibers during dialyzer production
- Preheating of wood fibre boards (MDF, HDF)
- Vulcanization of rubber profiles
- Pasteurisation of convenience foods
- Disinfection of packaged food.
The geometric design of the microwave heating zone (applicator), the use of special microwave coupling systems (antennas) and the automatic calculation of the required microwave power produce high homogeneous microwave fields. The required space is optimised by using microwave generators with high output power.
Product and process testing
For practical and professional microwave drying tests with microwaves (up to 200° C) and hot air (up to 80° C), our modern mobile hybrid microwave test tunnel is available to determine all necessary process parameters for process design. The tunnel is mobile and can be rented for tests at our site or at almost any other location.
- Conveyor belt coated with Teflon and is temperature resistant up to 200°C. The oscillation mode can endless seesaw oscillate enabling the practical determination of the required and optimal length of the microwave zone
- Exhaust and heating system, tube Ø 100 mm, connection for emission stream measurement
- Two frequency ranges possible: 915-MHz with 60 kW and 2450 MHz with 12 kW
- Non-contact measurement of the surface temperature using four IR pyrometers
- PLC including Touch Panel 12“
- Easy programming of recipes for the Automatic Operation Modus
- The penetration depth of the microwaves and the temperature distribution in the product can be determined experimentally using a fiber-optic, 8-channel temperature measuring device