Measure complete-carton variation across board, glue, inserts, leaflets and product batches before comparing the lightest missing or doubled item.
Measure representative complete cartons with their actual board, glue, leaflets, inserts and contents. Keep formats, packaging batches and recipes identified, then compare the normal complete-carton range with the weight difference from the lightest missing or doubled item.
Use the acceptance-window guide to judge whether the intended fault creates a useful weight signal. Different contents with equal mass cannot be distinguished by weight alone.
Plan carton checkweighers around the smallest meaningful weight difference, normal product and tare variation, pack transfer, line speed, reject confirmation and traceable test evidence. Use this guide to resolve carton contents, board, inserts and carton-to-carton tare variation before it limits the final system.
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Record the carton format and recipe, packaging batch, board and glue arrangement, inserts and leaflets, product condition and measured complete-carton range. Keep the known missing, doubled and marginal examples identified separately.
For Carton Checkweighers, include normal production conditions, credible extremes, product or part variants and changes over time.
Show how each packaging or content variant changes the complete-carton range and the missing-item comparison. Document format and recipe differences rather than assuming one acceptance window fits every SKU.
Measure complete cartons across the intended board, glue, insert, leaflet and product range. Keep the format, recipe and packaging batch with each result.
Compare the lightest missing or doubled item with the observed complete-carton variation. Record when the weight difference is not meaningful enough for the intended decision.
Provide actual carton dimensions and include flap condition, skew, instability and product movement when comparing presentation and transfers.
Repeat the representative pack comparison at the proposed line speed and spacing, including the relevant vibration and transfer conditions.
Keep a failed carton associated with its reject action and physical-removal result. Record the agreed response to missing confirmation and reject-bin conditions.
Use the challenge-test checklist to retain the sample identity, format, recipe, intended fault, observed result and final disposition.
Assess whether carton weight can reveal a missing leaflet, component or pack while allowing for board, glue, inserts and product variation.
Measure closed-carton formats using representative board batches, glue patterns, inserts and leaflets.
Include partial contents, doubled contents and marginal examples selected from the actual fault list.
Document variants and recipes instead of assuming one acceptance window fits every SKU.
The quotation brief should record closed-carton dimensions, flap condition, skew and centre of gravity and SKU and recipe structure. Final suitability remains specific to the samples, line conditions and acceptance tests agreed for your project.