Pharmaceutical companies work with small compound particles. They try to separate chemical compounds to obtain the smallest possible state of compounds. This is why colloidal mills are important in the pharmaceutical manufacturing industry.
It is a machine used to reduce the particle size of suspended solids in a liquid. When a liquid is suspended in another liquid, which means they are immiscible, this machine is alternatively used to reduce the droplet size.
Simply put colloidal mills are used in suspensions and solids present in the form of emulsions or even suspensions. It is used in reducing almost all types of materials.
The end result of such a mixture is a very stable mixture capable of resisting contamination by water or bleeding. Actually, it is the method of mixing cement based grout. Colloidal mills use a method known as shearing.