There are generally three types: rocking granulation, which simply means mixing the Chinese medicine extract with the auxiliary materials and then using mechanical force to pass it through the screen to produce small granules; and wet granulation, which mixes the Chinese medicine extract with the auxiliary materials. Mix in the granulator, rotate at high speed, and have a high-speed rotating granulation knife to cut it into small particles. One-step granulation. The excipients are blown by hot air in the tank, and the extract or liquid is sprayed onto the powder from the top downwards , gradually become small particles and expand. Now this method is more commonly used