Fourth, if you hear obvious iron-to-iron friction before the raw materials enter the pellet machine's pressing chamber, it may be because the gap between the pellet machine's ring die and the roller is too small, causing relative friction.

The gap between the die and roller should be adjusted in time.

Fifth, a slight operating noise is allowed during operation.

If the noise is too loud or there is abnormal noise, it indicates that the bearing is faulty.

Worn rollers or damaged bearings should be replaced in time.