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Vacuum Kiln For Large Section Timber Drying

Jiyuan manufactures vacuum kilns for drying large sections of lumber and square edge timber and has become a respected lumber dryer and timber dryer manufacturer in China. As compared with conventional wood drying equipment, our radio frequency vacuum kilns, or simply RFV kilns, can avoid and solve the problem of moisture content differences.

Technical Parameters of Vacuum Kiln

Capacity 3CBM 4CBM 6CBM 10CBM 13.5CBM 20CBM
Model GJG-1.7- 3B-JY GJG-1.7- 4B-JY GJG-1.7- 6B-JY GJG-2.1- 10B-JY GJG-2.1- 13B-JY GJG-2.5- 20B-JY
Power AC, 380V, 50HZ, 3phase (5wire or customized)
Output Power 20KW---100KW
21 years experience HF technology. Machine can save power and improve efficiency.
Wood loading size L3000mm × W 1000 × H 1000 (3 CBM capacity)
L4000mm × W 1000 × H 1000 (4 CBM capacity)
L6000mm × W 1000 × H 1000 (6 CBM capacity)
L6000mm × W 1300 × H 1300 (10 CBM capacity)
L8000mm × W 1300 × H 1300 (13.5 CBM capacity)
L8000mm × W 1600 × H 1600 (20 CBM capacity)
Other capacities can also be customized.
Functions Can dry all kinds of wood, especially for large section and square edge wood drying.
Faster, uniformly, no crack and deformation.
High frequency 6.78MHz
Max pressure -0.092MPa

Radio Frequency Vacuum Kilns vs Conventional Wood Dryers
Wood that is over 10 cm thick generally falls into the large section category. It is difficult to completely dry this type of wood using conventional drying methods like steam drying and hot plate drying because both of these methods adopt a heat conduction method to heat the wood. This results in temperature differences between the wood surface and core, leading to a significant difference in the moisture content, such as a surface moisture content of 10% and a core content of more than 20%. The thicker the wood gets, the more obvious this difference becomes. Wood also cracks and deforms easily using these methods, which leads to deformed products made from this wood.

Our radio frequency vacuum kiln employs the use of high frequency dielectric heating methods, which achieve selective heating. Wood cores with high moisture content will be exposed to higher heating temperatures, and wood with lower moisture content will be dried using lower temperatures. By doing so, wood heating becomes more uniform and balances the moisture content, ensuring an excellent drying effect. This wood drying machine also considerably reduces wasted wood and lowers factory costs.

Parts figure

  • Advanced optical fiber sensor
    for temperature test
  • Inner structure
  • International famous brand components


  • Customer's workshop
  • Large Section Lumber Drying
  • Square Edge Timber Drying
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