The warranty of high frequency vacuum wood dryer kiln is one year since received the dryer.If any part damage caused by non-human factors，we will send new parts for replace free
High frequency vacuum wood dryer kiln sloved this problem, you do not need wait years or months to get quality dried wood any more.The average drying time is 8-15 days to finish whole dry process by the high frequency vacuum wood dryer kiln. As a general rule,softwood is faster than hardwood, thin slab is faster than thick slab, air dried wood is faster than fresh cut wood. Welcome to contact us to know more information about the high frequency vacuum wood dryer kiln,
Fundamentally different from External Heating by means of thermal conduction, radiation, and convection, the H.F Dielectric Heating is called Internal Heating. The principle is using the wood as medium, capatior is a group between two pcs of metal plate.Then give them voltage,High frequency generator generates electromagnetic fields between two electrodes through three phase alternating current.when H.F. power with 6.78MHz is applied to wood, it forces molecular (dipole) to move as much as, for instance 6.78*1,000,000 times at 6.78MHz, resulting in generation of molecular friction and further in rapid generation of internal heat.i.e. the materia1 generates heat by itself in the result of molecular friction.This feature the H.F. Dielectric Heating process and makes it incomparable with other methods.The easiest way to explain it is that it’s very similar to a microwave oven in your kitchen. We load a stack of wood slabs into the kiln and apply pressure to the stack.The high frequency vacuum kiln that you see in this image is about a 26-foot-long chamber that can fit a timber cart 8 meters long.and handle 48" wide live edge slab.You can see here on the timber cartA lot of people will ask, “what’s a vacuum kiln?”There are different kinds of vacuum kilns.The vacuum purpose are same, both of them is to lower the boiling point of water and make the wood heated at low temperature.The main difference is heating method. The common vacuum kiln is use heated plates (filled with hot water or oil) each pcs wood is sandwiched by heated plates.It is belong to transfer heating from surface to the core of slab.The common vacuum kiln not suitable for thick live edge slab or thick wood block. High frequecy vacuum wood dryer kiln is the best choice for thick timber slab.The one we are specifically talking about today is a high frequency vacuum wood dryer kiln. Basically, what that means is that there’s a chamber that all the wood goes into, the door’s close, and then we initiate a vacuum pump. The pump will suck out the majority of the air in the chamber. By doing that, we’re removing the atmosphere pressure, and we’re able to vaporize water at a much lower temperature. Out in the standard atmosphere, we’re about 101 kPa. Inside the high frequecny vacuum woo dryer kiln, once we turn the vacuum on, we put it down to about 7 to 10 kPa. This would boil water or vaporize water at around to 45 degrees.you’ll have lower temperatures in a vacuum kiln drying.The high frequecny make wood heated inside and outside at the same time. When we start drying, the wood will be almost like in a steam bath, a really nice environment for the wood, the lack of oxygen and wet conditionn make wood dried at low temperature.all is a whole system to keep wood nature color and restrict defects and prevent the slabs from checking or splitting.
High frequency is called radio frequency. High frequency generator generates electromagnetic fields between two electrodes through three phase alternating current
How to choose a high frequecny vacuum dry kiln to meet your needs?The main factors to consider are as belowing;Wood species (walnut,ash, acacia, rosewood,oak,pine,teak, africa hardwood and etc.)Thickness in mm of your wood slabInitial moisture and target moistureThe above factors will decide t
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