SWKD-4.0HFV wood drying kiln

SWKD-4.0HFV wood dryer is a kind of small capacity high frequency vacuum kiln which is suitable for small sawmill factory, furniture manufacturer, guitar maker wood artist and other woodworking industries

SWKD-4.0HFV Vacuum Wood Drying Kiln Working Principles

The principle of wood drying kiln is to use wood as a medium, which is like a capacitor between two metal plates. When a voltage is given, an electric field is created between the two plates. The water molecules between the electrodes are polarized by the alternating magnetic field and move at very high speeds.
Collision and friction between water molecules (millions of times per second) generate heat in a very short time.
It is quite different from traditional steam kilns or ordinary vacuum kilns which use hot air or steam to dry wood from surface to core. The high-frequency power supply does not heat the wood moisture, but allows the wood moisture to heat itself.
It is a direct heating and this continuous effect heats the entire wood uniformly from the surface to the core.
This is one of the reasons why high-frequency vacuum drying kilns are 10 times faster than traditional wood drying kilns.

Specification of SWGZ-4.0III Wood Drying Kiln

The inside walls including the hydraulic cylinders and pressure plate of the high frequency vacuum kiln are made of stainless steel to prevent rust and corrosion.

Model SWKD-4.0HFV
Capacity 4.4 cubic meters per full load
Out Dimension 5400x1716x1809mm
Timber Cart Size 4000x1100x1000mm
Max Length of Wood 4000mm
High Frequency 6.78MHz
Vacuum pressure -0.093Mpa
Weight(kg) 5000

Main Features of SWKD-4.0HFVhigh frequency vacuum wood dryer

Several aspects of the drying process should be taken into consideration when compared with other wood drying methods. The advantages of High Frequency drying are as below:

1) HF vacuum dryer offer a significant reduction in drying times. In most cases as little as 1/10th of the time that is required for conventional kilns.

2) HF vacuum dryer have the ability to dry heavy stock (8/4, 10/4, 12/4) and large timber efficiently without major defect.

3) Heat treatment temperatures in HF kilns can be reached in much less time than conventional kilns as a result of efficient “direct heating”.

4) Under the vacuum conditions, wood is heated at lower temperature and without the oxygen, this will keep the wood nature color

5) HF vacuum dryer do not require sticks (spacers) between the lumber which eliminates stick stain and saves labor cost.

6) HF vacuum dryer can be used as a method to re-dry material rejected from conventional kilns or to quickly reduce moisture content in lumber prior to de-humidification Kilns

7) HF vacuum dryer run solely on electricity thereby eliminating the need for large commercial boilers. This creates a greener footprint on the environment.

8) HF vacuum dryer can be installed quickly and moved easily when renovations or expansions are required

9) During the drying process and with the help of high frequency heating, insects and eggs can be killed. Thus no need for further chemical treatment.

Drying result

Shuowei HF Vacuum wood drying kiln has received many good feedback from our customer, below there are MC tests results of some typical wood species.
If you are suffering from cracking, bending, and can’t bear the long drying process. it’s time to use Shuowei HF vacuum kiln

Our Customers

Many customers from the world are benefiting from the high frequency drying technology, if you want to make your drying process easier and faster, welcome contact us

Vacuum kiln in the Unite States

Vacuum kiln in the Vietnam

Vacuum kiln in the Canada

Why choose us Shuowei?

We do our best to provide you with better service and support for the end users of this HFV machine drying kilns.

Rich experience: Focused on the wood drying industry for more than 30 years, Shuiowei has mastered the drying methods of various wood species, and has most collected comprehensive drying data.

Strong R&D Capacity: There is a professional engineering team in Shuowei, it is led by two drying experts with more than 30 years experience and 12 young engineers who have been in this field for 6-10 years, it could provide customers with professional technical support and wood drying project solutions.

Customized services: According to the customers’ requirements,we can customize the exclusive equipment which is suitable for the work conditions and needs

After sales service: Super long warranty, free replacement of accessories within the warranty period, free after-sales service for life, 24-hour after-sales service all day, and solve after-sales problems anytime and anywhere

Strict Quality control – For electronic components we adopt the best ones (Schneider brand) , and Stainless steel is used for anti-corrosion vacuum oven. The equipment has been tested throughout the production and before leaving the factory to ensure the operation quality in aspects of power, pressure, air tightness etc., It has passed the all-round quality inspection of SGS, BV and other international testing institutions.

High praise from customers: The customers are all over the world including United States, Canada, South Korea, Japan, Indonesia, Thailand, Vietnam, Malaysia, Australia, New Zealand, European countries and Africa. The industry involves furniture factory, floor factory, cabinet factory, wooden door factory, wooden handicraft factory, etc., Shuowei has been highly praised by customers

Have more questions please contact us

Business Team

Our business team can help you with the price and shipping costs calculations. Come On! Be a member of high frequency vacuum wood dryer kiln users, make your wood drying process easier and faster.

Technical Support

Our technical teams are rich experiences in wood drying, if your any question about wood drying, especially for difficult drying hardwood block,slab,and special wood species drying questions. welcome contact us.

We'd like to work with you

Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right HF wooddryer you want.