Blow Molder Setup and Container Weight Check Inspection

Inspection template for recording blow molder setup settings and periodic container weight and wall checks to control material use and confirm bottles meet specification.

Inspection Setup and Traceability

• Machine, line, and mold identified on inspection record
  Record the blow molder ID, line number, mold number, and product code being inspected.
• Resin lot and material blend recorded
  Capture resin lot number, regrind percentage if used, and any approved blend or additive information.
• Inspection time and shift recorded
  Document the date/time of the setup or periodic check and the operating shift.
• Inspector and operator identified
  Record the names or employee IDs of the inspector and the line operator responsible for the setup.

Blow Molder Setup Verification

• Machine settings match approved setup sheet
  Verify barrel temperatures, parison settings, blow pressure, cycle time, clamp settings, and cooling parameters are set to the approved recipe or SOP.
• Safety guards and interlocks in place and functional
  Verify guarding, door interlocks, and access panels are installed and functioning before production starts.
• Compressed air, hydraulic, and electrical connections secure
  Check for leaks, loose fittings, damaged hoses, exposed conductors, or abnormal noise/vibration at startup.
• Material feed, hopper, and dryer operating within setpoint
  Confirm resin feed is stable and dryer temperature/dew point or other material conditioning parameters are within specification.
• First-off container approved before run release
  Confirm the initial container sample was reviewed and accepted before the line was released for normal production.

Container Weight Checks

• Sample size recorded for weight check
  Enter the number of containers weighed for this check.
• Average container weight within specification
  Record the average container weight from the sample and compare it to the approved target weight.
• Individual container weights within allowable range
  Verify each sampled container falls within the approved minimum and maximum weight limits.
• Weight trend stable since last check
  Confirm there is no upward or downward drift indicating overuse of material or process instability.
• Check frequency met
  Select whether the weight check was completed at the required interval.

Wall Thickness and Container Integrity

• Wall thickness measured at required locations
  Verify the required measurement points were checked, such as body, shoulder, base, or other specified locations.
• Measured wall thickness within specification
  Record the measured wall thickness value for the sample or the minimum measured point, as required by the control plan.
• Container appearance free of defects
  Check for flash, short shot, sink, haze, burn marks, deformation, contamination, or other visible non-conformances.
• Neck finish and closure fit acceptable
  Verify neck finish dimensions and closure engagement are acceptable for the intended package.

Deviations, Corrective Actions, and Release

• Any out-of-spec condition documented
  Confirm all defects, non-conformances, or process deviations were recorded with the affected time window and quantity.
• Corrective action implemented and verified
  Verify adjustments, segregation, rework, or maintenance actions were completed and the line was rechecked after correction.
• Inspection signed off for production continuation
  Inspector signature confirming the setup and periodic checks were completed and the run may continue, if acceptable.