The vacuum kiln body is a cylindrical metal structure with good compressive and sealing properties. The drying principle is to use the vacuum degree inside the tank to reduce the boiling point of water, accelerate the movement of water in the wood, thereby improving the drying speed and shortening the drying time. So when choosing vacuum drying method, the drying temperature should be low, which can reduce or avoid drying defects such as internal cracking and shrinkage of wood. The vacuum drying method is more suitable for drying thick hardwood plates, and it has a good drying effect on hardwood with good permeability.

High frequency generator

High frequency, also known as high-frequency or radio frequency in Europe and America, is a type of radio wave with relatively high frequency. Under the action of this high-frequency electric field, molecules of dielectric materials (such as glue molecules, water molecules, etc.)The electric field acting on PVC molecules, rubber, etc. is repeatedly changed, and the molecules between the positive and negative electrodes constantly rub and vibrate, generating heat energy. This causes the adhesive to heat up and quickly solidify, resulting in the fusion and compression of PVC products into one. The water molecules in the wood vaporize and are quickly discharged, and the fiberglass is rapidly formed, achieving fast, efficient, and selective heating effects. It is a new electromagnetic field processing technology that is widely used internationally& nbsp;

Therefore, high-frequency vacuum wood drying equipment is a combination of high-frequency heating and vacuum dehydration. 

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High frequency vacuum wood drying

1、 The use of high-frequency heating solves the problem of rapid heating and drying speed of wood.

2、 Heating both the inside and outside of the wood is uniform, of good quality, and can maintain the natural color of the wood.

3、 The use of vacuum water absorption reduces the temperature during the wood drying process, causing the wood to vaporize at low temperatures, making it less prone to cracking and improving the dehydration rate of the wood.

4、 Environmental protection without polluting the environment.

5、 High frequency waves can kill insects and bacteria hidden inside the board, shorten the drying cycle, and further ensure the quality of wood drying.

Specially suitable for drying thick, hard, large section square wood (which takes a long time to dry using conventional drying methods), precious wood such as rosewood, chicken wing wood, yellow pear, redwood, etc. At the same time, small batches and expedited secondary drying of wood after moisture regain are also used.

The main features of high-frequency vacuum wood dryer are:

1) Adopting PLC and touch screen program for automatic control, various heating parameter settings are simple and clear, and the wood drying process can be fully controlled by unmanned operation.

2) Temperature detection uses optical fibers to avoid high-frequency interference during the heating process. The measurement and control method further ensures the drying quality of the wood.

3)  The top of the dryer is equipped with a hydraulic system that applies pressure to the stack of dried wood, further ensuring the uniformity of the dried wood while preventing deformation.

4) The humidity detection adopts the weighing detection method, and the PLC controls the moisture content of the wood according to the changes in the weight of the wood. Avoiding the influence of high-frequency electromagnetic waves on traditional metal probes, it is more in line with automation& nbsp;

If you have any questions about high-frequency vacuum wood drying equipment, please call us and we will provide you with high-frequency vacuum drying equipment services.

4.5 cubic high-frequency vacuum dryer

6 cubic high-frequency vacuum dryer

10 cubic high-frequency vacuum dryer