Two cartoner quotations can use similar language while covering very different work. Create a comparison matrix that separates the base machine, format tooling, product infeed, carton and insert feeds, coding, inspection, rejects, conveyors, controls, guarding, documentation, testing, installation and training. Mark every item as included, optional, excluded or to be supplied by others.
Evidence-led proposal comparison| Comparison area | Evidence to request |
| Format capability | A controlled schedule of bottle, closure, label, carton, insert and pack-pattern combinations with change parts identified for each. |
| Performance statement | Finished acceptable cartons per minute, assumed feed condition, materials, inspection steps, test duration and the treatment of stops and rejects. |
| Material compatibility | Approved carton dieline, board range, closure method and production-representative samples used to support the proposal. |
| Inspection and reject | Each fault detected, challenge method, reject point, confirmation, reject-bin monitoring and the response when rejection is unavailable. |
| Changeover | Parts, tools, settings, recipes, storage, line clearance, first-off checks and the agreed start and finish conditions for any quoted time. |
| Acceptance testing | Formats, quantities of materials, operating condition, pack-quality criteria, fault challenges, documentation and responsibilities for corrective work. |
| Ownership | Maintenance tasks, spares, software access, manuals, training, remote-support boundary and the procedure for future format assessment. |
Where a numerical claim is included, record the conditions that make it meaningful. “Maximum speed” is not the same as sustainable output with the intended product, carton, insert, coding, inspection and reject logic. A changeover time is not comparable unless the start condition, end condition, number of operators and first-off quality check are the same.
Confirm the boundary between the cartoner and adjacent machines. The line-integration scope should show who supplies product pitch control, accumulation, discharge conveyors, electrical interfaces, safety signals and line-level software. Use the integration guide to prevent duplicate or missing responsibilities.
Before commercial comparison, complete the specification checklist. Then use the changeover guide and maintenance and OEE guide to compare lifetime ownership rather than purchase scope alone.
Proposal reviewUse one controlled pack brief for every supplier
Send the same bottle, carton, format and line data to each bidder and record assumptions in the comparison. This reduces the risk of choosing a lower headline price that excludes essential handling or integration.