Wood forming technology (for plywood, MDF boards, floor panels, etc.) with the use of ZEMAT brand High Frequency (HF) Generators and custom designed Hydraulic Presses is the best and the most economical solution for manufacturers making short series of products and requiring energy efficient, fast and easy production process.
Thanks to the use of high frequency technology, the cost of tooling (moulds) is several times lower than with the use of traditional methods of wood forming.
The raw material is placed inside the mounted on the press table mould and after closing the high hydraulic pressure is applied. Then the high frequency is turned on to start the heating process. The high frequency heating can be roughly compared to that of a microwave oven. In other words, the heating take place inside the moulded material, not on the surface of the mould.
This technology is extremely energy efficient and fast. The average time for forming/gluing process is between 2-20 minutes relative to the thickness and surface of the raw material.
High frequency generators are a source of high-frequency energy indispensable in industrial processes of dielectric and induction heating. For many years, high-frequency generators have been an attractive alternative to conventional heating.
Technological processing of material, which undergoes dielectric loss, are considerably less energy- and time-consuming thanks to HF generators.
High-frequency generators are used to power output loads such as hydraulic and pneumatic presses, chamber and conveyor dryers, vacuum chambers for plasma treatment, and technological lines. It is possible for high-frequency generators to operate alternately with more than one output device, for example, with hydraulic presses. High-frequency generators are made based on triodes from leading European manufacturers.
Zemat Technology Group produces GX series generators with power and frequency adjusted to the technological needs used in capacitive heating, as well as GI series used in inductive heating. The flexibility of the applied solutions allows the devices to be tailored to the individual needs and production specifics of the customer. The adopted construction method and shielding of the devices minimize radiation and high-frequency energy losses in transmission lines.
