Screw Slippage

Suggested Corrective Actions

Machine

  • Check for bridging at feed throat in hopper.
  • Check for broken or worn check valve.
  • Check for worn screw or barrel.
  • Reduce rear zone temperature on barrel.

Material

  • Check for excessive fines or lubricants.
  • Check moisture content of material.
  • Check pellet cut and bulk density of material.