Many pellet mill operators don't pay much attention to the gap between the die and pressure roller. However, this gap is a crucial indicator of pellet processing quality, significantly affecting the hardness and firmness of the pellets. Within a certain range and under normal conditions, higher pellet hardness and firmness result in better pellet processing quality. Increasing the gap between the die and pressure roller can lead to an excessively thick and unevenly distributed material layer, causing the pressure roller to slip and reducing pellet formation rate. If the pressure exerted by the die roller on the material is less than the resistance of the die orifice wall, the main motor current increases, preventing the material from being extruded and causing blockage.
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