UNMELTED PELLETS IN PART

Melt not homogeneous • Increase backpressure by choke adjustment • Use finer screen pack • Check for screw/barrel wear and ensure proper screw is being used for the application Melt temperature too low • Allow more time for machine heat-up • Increase melt temperature • Check for bad heater bands, blown fuse, or bad contactor and replace bad component. Cycle too fast • Reduce cycle time.