Mixing raw materials helps ensure a more uniform distribution of particle sizes, which is beneficial for achieving consistent hardness across the product. The water addition process during mixing remains a key challenge in pellet production. In the manufacturing of hard pellets, adding 1% to 2% moisture in the mixer can enhance pellet stability and hardness. However, this increase in moisture may negatively impact the drying and cooling stages, as well as long-term storage conditions. For wet pellet production, up to 20% to 30% moisture can be added to the powder, with about 10% introduced during the mixing phase, making it easier to manage during the conditioning and tempering steps. Pellets made from high-moisture materials tend to be softer, more palatable, and easier to handle. Adding fat during mixing is a common practice in feed production. Introducing 1% to 2% oil can reduce particle hardness, while increasing the oil content to 3% to 4% can significantly lower the firmness of the final product. This makes the pellets more suitable for certain animal diets that require a softer texture.
In autumn, when new corn is harvested, it tends to have higher moisture content and is not fully dried. As a result, less water is absorbed during processing, which can make it difficult to achieve the desired hardness in the final pellets. This highlights the importance of adjusting moisture levels and processing parameters depending on the raw material properties. Understanding these factors allows manufacturers to optimize the formulation and improve the quality of the finished product. Whether producing hard or soft pellets, proper moisture control and ingredient management are essential for consistent performance and better feed quality.
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