Raw material for pellet mill: Moisture not 12%-18%, particle size >3mm
Pellet mill feeder: Abnormal inverter speed, worn/clogged spiral blades
Pellet mill: Hopper bridging, foreign objects in feed inlet
Pellet mill die & roller: Uneven gap (>0.3mm) or excessive wear
Solutions
Adjust pellet mill raw material moisture to 12%-18%, crush to ≤3mm
Regulate pellet mill feeder speed, clean/replace worn spiral blades
Install pellet mill hopper vibrator/arch-breaker, remove feed inlet foreign objects
Adjust pellet mill die-roller gap to 0.1-0.3mm, replace worn components
Clean pellet mill feed channel weekly, inspect parts monthly
Idle pellet mill 3 minutes before feeding, gradual feeding (no sudden large volumes)
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