When the Dingli paint dryer is drying powder paint, microwaves act on the water molecules contained in the powder paint. The water molecules vibrate 2.45 billion times per second in the microwave electromagnetic field. The friction between the molecules generates heat. As the temperature increases, the molecules migrate from the inside of the powder coating to the surface and then diffuse into the air. The dehumidifier blower discharges the generated water vapor to the outside of the drying box, thereby achieving the purpose of drying.
The main characteristics of powder coatings are: harmless, high efficiency, resource saving and environmental protection. It has two major categories: thermoplastic powder coatings and thermosetting powder coatings.
Thermoplastic powder coatings include: polyethylene, polypropylene, polyester, polyvinyl chloride, chlorinated polyether, polyamide series, cellulose series, and polyester series.
Thermosetting powder coatings are composed of thermosetting resins, curing agents, pigments, fillers and additives. Thermosetting powder coatings include: epoxy resin series, polyester series, and acrylic resin series.
Microwaves are electromagnetic waves with a frequency of 300 MHz to 300 GHz. Water molecules in the heated medium material are polar molecules. Under the action of rapidly changing high-frequency magnetic fields, their polar orientation will change with the external electric field. The changes cause the movement of molecules and mutual friction effects. At this time, the field energy of the microwave field is converted into thermal energy in the medium, which increases the temperature of the material and produces a series of physical and chemical processes of heating and puffing to achieve the purpose of microwave drying and heating sterilization.
| Model | Type | Power | Material | Size（m） | Output（kg/h） | Microwave leakage |
| MiD-8 | Cabinet type | 8KW | Stainless steel | 1.3*1.0*1.68 | 40-60 | ≤5 |
| MiD-10 | Cabinet type | 10KW | Stainless steel | 1.3*1.0*1.75 | 50-70 | |
| MiD-15 | Cabinet type | 15KW | Stainless steel | 1.7*1.1*1.85 | 80-100 | |
| MiD-80 | Tunnel type | 20KW | Stainless steel | 8.2*1.3*1.7 | 150-200 | |
| MiD-100 | Tunnel type | 40KW | Stainless steel | 10.5*1.4*1.7 | 250-300 | |
| MiD-130 | Tunnel type | 60KW | Stainless steel | 13.2*1.4*1.7 | 300-400 | |
| MiD-140 | Tunnel type | 80KW | Stainless steel | 14.8*1.9*1.7 | 500-600 |
Fast And Efficient
Microwave radiation can quickly heat and evaporate the moisture inside the object, making the drying faster and more efficient.
Energy Saving
Can better utilize energy during drying and reduce energy waste.
Even Drying
Heating inside and outside at the same time, drying evenly.
Maintain product quality
Reduce the loss of nutrients and chemical changes during drying, which helps maintain product quality.
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