The brand Nagasawa Model JDH - 60 wood dryer 
 Category combine- 

 Drying sterilization machine the JDH microwave fruits and vegetables (combined) 

 Microwave heating is a whole heating process, the material under the action of the microwave field inside and outside at the same time heating, the temperature rise. At this point, the surface temperature drops due to surface water evaporation heat away. To form a high outside temperature gradient, the more the direction of the gradient is consistent with the direction of the evaporation. Therefore, fast drying, high energy efficiency. Hot air drying, a thermal conductivity of dry and past process, it is through the thermal medium heated material surface, and then heating by heat conduction from outside to inside. Process will form an outer low temperature gradient, this temperature gradient in the direction exactly contrary to the direction of evaporation. Therefore, dry slower and inefficient. And the lower its efficiency with the reduction of material moisture, long drying time. 

 This equipment is the full use of the microwave ((Fast away the advantages of the material surface moisture) designed to maintain a high and low on the outside temperature gradient) and the hot air. Equipment is divided into pre-drying section, the use of microwave heating characteristics of the material to form an outer low temperature gradient in this heating, the formation of a water evaporation from the inside out "pressure potential" and enter the second heating; two heated drying section, and during this the one hand, microwave heating to maintain the material within the outer low temperature bench, on the one hand, the use of hot air quickly taken away by the material surface water. Making the entire drying process to be completed in a relatively low temperature environment at the same time greatly reduce the drying time. The equipment is suitable for a variety of fruits and vegetables, agricultural products, herbs, grain products, dried fruits, aquatic products and other dry sterilization.