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What Is Power Coating  System?
Power coating is the process of coating a surface in which a powder material is  applied using an electronic or compressed air method, or sometimes fluidized  bed.
The applied powder is then heated (cured) in an oven to its melting point, after  which it flows to form a smooth film which dried to firm, durable finish very resistant to scratches, cracking, peeling, UV rays and  rust . that is widely applied in industry metal workpieces.

Advantages of Powder Coating
Because of the advanced method with which powder coatings are applied, all types  of powder coating provide a durable, uniform and attractive finish. All powder  coatings are decorative and protective, and different formulations of powder  coatings are available to provide extra protection from ultra-violet rays,  corrosion, abrasion, and chemicals. Some types are even approved for use by the  FDA in food grade applications.

What's more, they provide good electrical insulation properties and can also  have special characteristics like electrostatic discharge.

Features:

1.Being installed in a  mobile carriage, can be moved from one spraying site to  another spraying site  conveniently.

2.Adopting  integrate circuit, the static system is steady and secure.

3.Adopting voltage boosting  and voltage doubling technique inside the gun, the  powder coating gun has low  static loss and high rate of powder.

4.The two-circuit tri-air  structure in the gun nozzle can take rotary atomization and improve the evenness  of spraying powder.

5.The powder feeding  system  adopts fluidizing pumping powder feeding principle, which makes the feeding powder even and  steady.

6.Diluting air in the powder  feeding pump makes the powder discharging concentration and   the flow speed adjustable.

7.The powder  feeding cylinder, with removable structure and made by stainless  steel, is easy  to clean and change color. 

8.The powder feeding  pump,  with easy insert removable structure, is easy to maintain, clean and change  color.

Items including control unit, powder coating gun, cleaning gun,  powder feeding cylinder ,seat carriage and other  accessories (easily worn parts include control main board, voltage boosting module, powder feeding pump, fluidizing board.).
Here is The picture showing how to connect the parts.

The entire powder coating process involves  several steps.

Very  generally:

1.After determining the substrate you are  working with, you will begin with the cleaning step -abrasive  blasting or chemical cleaning - to insure the substrate is free of any oils,  dirt, rust, mill scale, etc;
2.The substrate must be fully cleaned to avoid defects in the finish and rejects  by the customer resulting in lost income and time.
3.A pretreatment step (an important step not done by all coaters) during which  the product is treated with a pretreatment chemical or conversion coating,  usually phosphate or zinc based, to further protect it and improve the surface  for powder adherence;
4.rinse, rinse, rinse...dry completely then
5.Mask areas you don't want coated. This is done with high-temperature  tape specially designed for powder coating, and/or caps and plugs.
5.Rack the items. Now we're ready to coat.
6.Select your coating.  Choosing the right coating for your application and end  use of the item is very important.  A variety of powder formulation sexists to  choose from depending on the type item you will be coating.
7.Powder coat the parts, usually done with an electrostatic gun, corona or tribo,  in a powder booth, but sometimes in a fluidized bed;
8.Finally, FULLY cure the powder in the oven, usually convection cure  ovens generally at 375-400 deg. F, 15-20 minutes (varies), in an infrared oven,  or a combination of both.
9.Failing to preheat and cure the part properly can result in several kinds of  defects such as out gassing.