A factory visit is a powerful supplier-evaluation tool, but it is not necessary in every case. If it is carried out too early, it may add time and cost without improving the decision.
Its real value appears when the visit is made at the right stage and for the right purpose.
Basic suitability should be verified first
If a manufacturer does not fit the technical scope, lacks the required certifications or does not have sufficient capacity, a factory visit is premature. Before travelling, the following points should be checked as far as possible through desktop qualification:
- Manufacturing scope
- Capacity and current availability
- Required quality certifications
- Experience with similar projects
- Machinery and equipment
- Export and documentation readiness
Once this first screening is complete, the factory visit becomes much more meaningful.
Real manufacturing capability can be seen on site
Catalogues and presentations provide useful information, but they do not always reflect the actual condition of a factory. During an on-site visit, it is possible to observe:
- Organisation of production areas
- Whether machinery is genuinely in active use
- Welding and fabrication organisation
- Material flow
- Quality-control points
- Storage and traceability systems
This creates an important verification layer, especially for large or critical projects.
Capacity is more than a number
A company may have high annual capacity but still have limited room for a new project because of its current workload. By observing production intensity, ongoing projects and actual machine utilisation during the visit, the difference between theoretical capacity and real availability can be understood more accurately.
The quality system can be seen in practice
Certificates and procedures are important, but the critical question is how they are applied in daily production. During the visit, the following can be assessed on site:
- QA/QC organisation
- Welding controls
- Measurement systems
- NDT practices
- Material traceability
- Documentation discipline
This helps determine whether the manufacturer's quality system exists only on paper or is actually embedded in daily production practice.
Safety and operational discipline can be evaluated
Factory organisation, housekeeping, safety practices and production discipline provide important signals about company culture.
A disorganised production area, weak material control or insufficient safety practices do not automatically mean there is a quality problem, but they are indicators that should be considered from an operational-risk perspective.
When is a factory visit particularly useful?
A factory visit creates more value particularly:
- When working with a manufacturer for the first time
- For high-volume or critical projects
- Where technical risk is high
- When a long-term supply relationship is being considered
- For manufacturing processes that are difficult to verify through documents alone
In these cases, on-site verification can materially improve the quality of the supplier decision.
The objective is not the visit itself, but risk reduction
A factory visit should not become a formality.
Before each visit, the points to be verified should be defined and, where possible, a technical checklist should be prepared.
A factory visit carried out at the right time strengthens supplier selection; a visit carried out at the wrong time only extends the process.
On-site verification should therefore be treated as a stage that complements desktop supplier qualification, not as a substitute for it.