Extruder Screw and Barrel Purge Changeover Log

Tracks purge compound, temperatures, and clear-out verification during resin or color changeover on an extruder to minimize contamination and waste between jobs.

Changeover Details

• Changeover Date
• Changeover Start Time
• Line or Extruder ID
• Previous Job / Material
• New Job / Material
• Changeover Reason

Purge Compound and Process Settings

• Purge Compound Name
• Purge Lot / Batch Number
• Purge Method
• Barrel Temperature Setpoint (°C)
• Screw Speed During Purge (RPM)
• Purge Duration (Minutes)

Clear-Out Verification

• Was the previous material fully cleared from the screw and barrel?
• Was any visual contamination observed in the purge or first-off material?
• Was the first-off material approved for production?
• Sample Disposition
• Contamination / Clear-Out Notes

Waste, Follow-Up, and Sign-Off

• Scrap / Waste Quantity (kg)
• Corrective Action Taken
• Operator Name
• Supervisor review required?
• Operator Signature