When granulating with Best Intelligent pellet mill, many aspects of raw materials will affect the hardness of pellets, including the formula of raw materials and processing technology will change the hardness of pellets. Therefore, when using the granulator, it needs to be improved as needed.

In the grinding process, the crushing particle size of the raw material is the determining factor of the particle hardness. Generally speaking, the finer the particle size of the raw material, the easier the gelatinization of the starch during the Best Intelligent pellet mill process, the stronger the adhesion in the granular material, the less easily broken, and the greater the hardness. The broken particle size is between 900 μm-300 μm, and the secondary broken particle size is between 600 μm-300 μm. The broken particle size distribution is conducive to the granulation and appearance quality of the particles, and can ensure the appropriate hardness and low Broken rate.

Through the pretreatment of raw materials, anti-nutritional factors in raw materials can be destroyed, bacteria can be killed, harmful substances can be eliminated, raw materials can be denatured, and starch can be fully gelatinized. Gelatinized starch has a significant effect on granule hardness. Due to the high degree of gelatinization of the granular material and the hardness of the particles, it is necessary to use other methods to reduce the hardness of the particles.