The fluid bed or air suspension process is used for granulation or agglomeration, and layering and coating for various sizes of particles. It is also used for drying. The fluid bed process can be divided into 3 types according to the position of the spray nozzle: Top Spray, Bottom Spray, and Tangential Spray.

Wet granulation processed by the fluid bed in an airtight chamber is concocted through steps and applied to various fields of industries, including medication, food, fertilizer, and more. This process has advantages over other wet granulation processes in the yield of raw material, and it shortens manufacturing time because mixing, granulation, drying, and coating of a pulverulent body can all be done in one container.

Besides direct granulation, the top spray type fluid bed process makes granules with good dispersibility and a porous structure for fast water-absorbing. Such granules can be used for powdered food, dietary supplements, or chemicals. The fluid bed is utilized for powder coating, powder layering, and palletizing.

The bottom spray type fluid bed forms a more excellent film than other coating technologies do, and its application is useful in medicine since it controls the emission of drugs, and in the fertilizer industry due to its active layering and coating. Tangential spray (Rotor) type is highly effective when applied to palletizing and layering.

1. Another advantage is that by changing the container, many types of tasks can be practiced, since the equipment is used for drying, granulation, and coating of a pulverulent body by using the air in fluid bed.
   
   
2. Depending on the type of spraying used, Top spray and Bottom spray can be applied. Top spray is usually used for granulation of a pulverulent body, and Bottom spray for coating.
   
   
3. The nozzle is categorized by the hole-size of its tip. There are three types; 0.8, 1.0, and 1.2.
   
   
4. With twin chambers, it is capable of continuous operation. Equipment to withstand high temperatures and high wind powers can be custom-made.
   
   
5. Touch screen and electric PLC control system designed for easy operation.