Analysis of Severe Roller Wear in Biomass Pellet Mills

PRODUCT

▪ Crushing Process

▪ Drying Process

▪ Mixing Process

▪ Pelleting Process

▪ Cooling Process

▪ Packaging Process

▪ Related Machines

▪ Complete Pellet Line

SUPPORT

TIME:2025-08-28 16:35:10　　WRITER：JINAN GLOBAL MACHINE MANUFACTURER

JNSHARE suggests that to resolve severe roller wear, priority should be given to material selection. Choosing materials with high hardness and wear resistance (e.g., C50, 20CrMnTi, GCr15) combined with high-quality heat treatment can effectively reduce wear.

Many causes of severe roller wear are human-controllable; the following key points should be avoided:

Over-tightened rollers increase wear; adjust them to an appropriate tightness.

Check if the die and rollers are matched, and if roller retaining rings are properly installed to avoid protrusion.

Ensure uniform material distribution in the pressing chamber to prevent uneven roller force (which accelerates surface wear). Damaged material distribution blades cause uneven feeding and also wear rollers.

Prevent hard impurities (e.g., stones, iron) in raw materials—they not only wear rollers but also damage cutters.

Check if the oil holes of the roller eccentric shaft are blocked to prevent bearing burnout due to poor lubrication.

Excessively large die-roller clearance reduces output and pellet quality; excessively small clearance accelerates die/roller wear and also lowers output.

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