The third method of a small spray dryer system in laboratory is the pneumatic atomization of twin fluid bodies. Where atomization is achieved, the interaction between the first fluid and the second fluid is a constant compressed air to create an environment. In this case, neither air pressure nor liquid requirements are very high. Perhaps, a typical range of 200 to 350 kPa can complete this work. It is controlled by the particle size by changing the overall proportion of the compressed air flow of the liquid flow.