During the entire production process, there are many factors that will cause the roller group wear, such as material formula, crushing particle size, powder conditioning quality, mold roller gap, operating skills, etc., which can be manually controlled. At the same time, the following factors can also lead to normal axial equivalent wear. Moreover, during the operation of the pelletizer, vibrations inevitably occur due to various reasons. If long-term vibration or violent vibration, it may cause screws and other parts to loosen, break and fall off.

1. The wear or the angle of the feed scraper will cause uneven feeding of the ring dieing material area and the pressing roller, which will eventually cause uneven wear of the ring die working surface, resulting in inconsistent gap between the mold rollers and uneven thickness of the natural material layer. If the material is not distributed well, check the scraper and make adjustments if necessary.

2. It is not recommended to use roller group shells with poor quality and structure. Try to use the same type of roller group shell.

3. A certain gap should be maintained between the roller group of the straw pellet machine and the ring die, and it is appropriate to have 0.1-0.3mm. If the weed powder is pressed, it can be increased by 0.5mm. Clearance adjustment is important. Too large gaps will affect the production efficiency of the granulator and it will not even be possible to extrude particles. If the gap is too small, it will accelerate wear between the roller group and the ring die and reduce the service life of the mold.

4. The screws are loose. You can observe whether the roller group retaining ring is damaged and replace it in time.

5. Incorrect assembly of the roller group assembly can easily cause the screw to break. If the screw falls off and enters the granulation equipment, the pellet machine should be shut down immediately for inspection and cleaning. Otherwise, small metal foreign matter will roll back and forth between the pressing roller and the straw pelletizer, blocking the mold hole, causing the ring die to break and the roller group to damage.

6. Remind everyone to check the wear and tightness of the roller groups regularly. If the roller group bearing gap is found to be large, loosen the retaining ring and lock the round nut to reduce the bearing jump. Check whether the pressure chamber bolts, screws and scrapers are loose, and especially the idea of ​​connecting the ring die and the screws of the drive wheel.