Direct answer
A useful sample trial reproduces the difficult production conditions, not an ideal demonstration. Send representative product and packaging, define the test quantity and output, agree pass criteria, record settings and retain accepted and failed samples.
Why this matters
Sample trials reduce project risk only when the material is representative and the result is measurable. A short run with hand-selected packs may hide density, tolerance, static, foam, dust or changeover problems.
Decision table
| Trial input | Minimum information | Why it matters |
|---|---|---|
| Product | Normal and worst-case batch condition | Flow, accuracy and cleanability |
| Packaging | Approved production batches and drawings | Feeding and tolerance |
| Output | Good packs per minute and run duration | Sustained performance |
| Quality | Fill, torque, label, code, seal or damage limits | Objective acceptance |
| Changeover | Formats and target time | Operational flexibility |
Information to collect
- Send enough material for setup and the agreed sustained run.
- Include the smallest, largest and least stable pack.
- State product temperature, age, density, particles or safety information.
- Define how samples will be measured and by whom.
- Agree what happens to uncertain or failed results.
- Record machine settings, tooling and material batch references.
Practical method
- 1
Issue a written trial protocol.
- 2
Confirm receipt and condition of samples.
- 3
Run setup separately from the acceptance period.
- 4
Collect results in sequence rather than selecting good examples.
- 5
Close the trial with actions, responsibilities and a decision.
Common mistakes to avoid
- Testing water instead of the real viscous or foamy product.
- Using prototype packs that differ from production tooling.
- Measuring peak speed instead of good output.
- Changing several variables without recording them.
- Discarding failed samples and losing the evidence.
Questions people also ask
How many samples should be sent?
Enough for setup, adjustment, the agreed sustained run, repeats and retained reference samples; the exact quantity depends on speed and variability.
Can substitute product be used?
Only when the properties that drive the machine behaviour are demonstrably equivalent and the limitation is recorded.
Should all formats be tested?
Test every committed format or a justified worst-case set that covers the operating envelope.
What is a successful trial?
A successful trial meets the pre-agreed measurable criteria under representative conditions.
Continue from the requirement to the equipment
Use the specialist route that matches the product, pack and process. Final suitability requires representative samples, output targets and site information.