Accept an industrial labeling machine against a written test protocol covering your containers, labels, usable output, placement quality, fault handling, and changeovers. Use the factory acceptance test to assess the agreed machine scope before shipment, then verify installed performance during site acceptance. Neither test is meaningful without defined conditions and a record of the results.
FAT means factory acceptance test, while SAT means site acceptance test. Their exact scope is contractual and project-specific. A short demonstration video can support a review, but it does not replace an agreed protocol with measurable pass criteria.
What Should Be Agreed Before the Test Is Scheduled?
Agree on the machine configuration, package matrix, supplied materials, test sequence, and acceptance criteria. Identify optional equipment included in the demonstration, such as inspection or automatic rejection. Also state who provides the containers, label rolls, utilities, operators, and measuring equipment.
Connect the protocol to the quotation and approved specification. If a requirement appears only in an informal message, bring it into the controlled project record before the test. Both parties should understand which results determine acceptance and which are informative observations.
Use the BRENU labeling equipment overview to identify a candidate application before defining the configuration covered by the test. The acceptance document must refer to the actual quoted configuration. Only functions listed in the signed equipment scope belong in the acceptance baseline; a feature described for another model does not establish that it is supplied.
Which Bottles and Labels Should Be Tested?
Select representative formats and the formats most likely to challenge the machine. These may include an unstable container, a narrow labeling panel, a long wrap, or an orientation-sensitive bottle. Explain why each format is included rather than choosing only by sales volume.
Supply normal production materials with identifiable lots and approved specifications. If substitutes are necessary, document exactly what changed and which conclusions remain unproven. A trial with a rigid sample bottle may not qualify a flexible production container with different handling behavior.
For sleeve applications, include the complete relevant process in the protocol. BRENU’s automatic shrink sleeve machine page can inform the equipment discussion, but the test should identify the proposed applicator and tunnel arrangement. Inspect the package after the agreed heat process, not only after the sleeve is placed.
How Should Output Be Measured?
Measure accepted output over a defined period and record the operating events within that period. State whether loading, roll changes, routine stops, and changeovers are included. A rate measured during a short uninterrupted interval answers a different question from accepted output across a production window.
Count total processed containers, accepted containers, rejects, and interventions at the agreed boundary. Reconcile the counts where practical. Keep start and end times with the record so that another reviewer can reproduce the calculation.
For example, 11,700 accepted bottles over 100 measured minutes equals 117 accepted bottles per minute. This is an illustrative calculation, not a BRENU performance claim. Whether that result passes depends on the contract, materials, operating conditions, and agreed treatment of interruptions.
Review the whole production boundary using the water bottling process overview. A labeler’s isolated FAT rate does not establish the finished-line output. SAT should address the interfaces relevant to the installed acceptance requirement.
What Does a Good Placement Specification Look Like?
A useful placement specification identifies the reference feature, measurement method, and permitted deviation. Define vertical location, skew, and any required front-to-back or seam relationship separately. Avoid an unexplained accuracy number that different inspectors can interpret differently.
Use drawings or annotated reference photographs where they make the measurement clear. Specify whether the criterion applies to the leading edge, trailing edge, label center, or another feature. Confirm that the measurement method is practical on the finished container.
Separate appearance defects from placement errors. Wrinkles, bubbles, edge lift, damaged labels, and incorrect artwork may require their own acceptance rules. Include any relevant conditioning time when a defect can develop after application.
How Should Barcode Checks Be Included?
Define barcode or code inspection according to the package’s actual identification requirement. Checking that one handheld scanner reads a sample is not the same as assessing print quality under a verification method. Keep code content, position, and quality as distinct checks.
GS1’s barcode verification guideline supports that distinction. Agree on the appropriate verification evidence with the responsible packaging team. Do not imply that a labeler automatically guarantees barcode compliance merely because it applies a preprinted label.
When artwork wraps around a curved container, inspect the finished package in the agreed state. Record whether the sample is filled, capped, and conditioned as required. This prevents a flat-label approval from being treated as proof of every finished-pack characteristic.
Which Faults and Restarts Should Be Demonstrated?
Demonstrate the agreed responses to normal production interruptions and deliberately introduced test conditions. Use supplier-approved methods and samples so that the test remains controlled. Never defeat safeguards to create a fault scenario.
| Test Area | What to Define | Record to Keep |
| Material interruption | Response when labels are unavailable | Alarm, product handling, and restart result |
| Downstream blockage | Controlled flow and recovery behavior | Container condition and intervention time |
| Inspection fault | Detection and handling of approved challenge samples | Detection result and reject confirmation |
| Format transition | Starting state and first acceptable sustained run | Elapsed time, staffing, and startup rejects |
Include the operating states likely to matter at your site. A line with frequent packer interruptions needs evidence of recovery behavior. A single-format line with long runs may place more emphasis on roll changes and sustained consistency.
What Must Be Verified Again at the Site?
Verify installation, actual utilities, conveyor interfaces, operating access, and performance with the surrounding equipment. Shipping and installation introduce a new physical environment, while upstream and downstream behavior may differ from the factory demonstration. SAT should address those changes explicitly.
For carbonated beverages, compare incoming container conditions with the agreed carbonated drink filling process. Check the conditions at the actual labeler entrance during relevant operating states. A factory trial using dry room-temperature samples should retain that limitation in its record.
Verify the finished package through the selected shrink wrapping or carton packing process. This helps separate labeling acceptance from damage or handling effects introduced later. Agree on the boundary where finished-line quality is assessed.
How Should Deviations and Retests Be Managed?
Record each deviation with the requirement, observed result, evidence, responsible party, and proposed correction. Distinguish a failed acceptance criterion from a documentation item or an optional improvement. This keeps a minor preference from obscuring a production-critical issue.
Agree on the retest scope after the correction. A change affecting only a document may need a document review, while a change to container handling may require renewed performance testing. The scope should follow the possible effect of the change rather than a blanket rule to repeat everything or nothing.
Avoid signing an unconditional acceptance record while unresolved conditions remain ambiguous. Use the contractual process to record exclusions or agreed outstanding items. Commercial acceptance and technical observations should remain clear to the people responsible for both.
How Should Test Samples Be Selected and Retained?
Define the sampling method before the run so that the acceptance record does not rely only on attractive examples selected afterward. Include the operating stages relevant to the requirement, such as startup, steady running, and recovery. Identify each retained sample by format, material lot, and test condition.
Choose the sampling quantity with the quality team according to defect risk, expected frequency, and the strength of evidence needed. The sample quantity must be justified against the particular defect and acceptance question, rather than borrowed as a fixed count from an unrelated machine trial. A test with no observed defects still has a limited scope and should be described by what was actually inspected.
Keep measurements and observations alongside the samples or photographs. Where appearance is judged visually, use agreed reference examples and consistent viewing conditions. If the two parties disagree, record the difference and resolve the criterion rather than quietly selecting a favorable interpretation.
Arrange storage and review timing for any delayed checks. A package that must be assessed after conditioning cannot receive that specific approval during an immediate discharge inspection.
What Belongs in the Handover Package?
Collect the accepted test protocol, results, material identifiers, setup records, operating instructions, maintenance information, and parts documentation. Include relevant drawings and agreed training records. Store the final versions where production, quality, and maintenance teams can retrieve them.
Keep approved package samples or photographs linked to the format records. They provide a practical reference during later changeovers and troubleshooting. Identify any formats that remain unqualified so that future production does not silently exceed the test scope.
Before placing an order, ask BRENU to review your draft acceptance protocol alongside the product matrix and output requirement. Resolve unclear measurements and sample needs while the equipment scope can still be adjusted. A well-defined test protects both parties by making successful performance demonstrable.