Issues regarding material cutting in granulators
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Have any of the seniors encountered pellets produced by a pelletizer in this shape – narrow and long strips? Occasionally, some narrow strip-like materials may also stick to the back of the granules
This situation may be caused by worn blades in the pelletizer or improper adjustment of the blade clearance. It is recommended to check and replace the blade, as well as adjust the gap between the blade and the mold appropriately. Furthermore, the humidity and temperature of the material also affect the cutting quality; it is possible to try adjusting the humidity and temperature conditions of the feed to see if this can improve the quality of the pellets. If the problem persists, it may require a professional technician to conduct a thorough inspection and repair. .
Check whether the melt index is stable and whether the molecular weight distribution is too wide
Is it possible that the issue is caused by a mismatch between the cutter speed of the underwater pelletizer and the discharge speed?
Commonly known as linked cut pieces; continuing like this may cause the knife to get tangled. The cutter speed can be increased appropriately, and the temperature in the last few zones of the extruder can be raised slightly.
After replacing the cutter template, it is necessary to carefully level the cutter in the water chamber. When replacing the cutters on the cutter disc, as well, care must be taken to ensure that the cutters are positioned on a platform with the specified precision; during trial cutting, the effectiveness of sharpening should be observed.
The possibility of reasons in this area is greater