This buyer guide helps you evaluate questions to ask on a factory visit before committing capital to flexible packaging equipment. It focuses on scope, contract clarity, and acceptance discipline—not sales language.
Who this guide is for
Buyers planning factory visits or supplier shortlists for export machinery orders.
A factory visit is not a courtesy tour—it is due diligence on whether a vendor can build, test, and document equipment that will perform in your hall after sea freight and commissioning. Purchasing teams that arrive with a structured question list extract far more signal than those who accept a scripted walk through finished machines only. The goal is to observe how work actually flows from machining through assembly, electrical build, run-off, and export crating.
Ask to see run-off bays adjacent to export preparation areas, not only showroom-ready units. How many bays operate in parallel during peak season? Who schedules witness FAT when multiple export orders overlap? Constrained run-off capacity delays your acceptance window and pushes commissioning into production pressure you planned to avoid.
Key decisions before you sign
Electrical panel build deserves direct questions. Request to see a panel in progress for a serial number close to your configuration: wire labeling standard, drive mounting, grounding practice, and spare I/O reserved for future modules. Panels built to one country's habit and retrofitted after shipment are a common source of SAT delay and warranty dispute.
Documentation discipline predicts post-install support quality. Ask how serial records travel with each machine—torque sheets, bearing part numbers, FAT photos, HMI recipe backups. If records live in disconnected spreadsheets or only in one engineer's memory, your SAT team will inherit the same gaps six months later when a register issue needs baseline comparison.
Factory visits are most valuable when you observe changeover and run-off relevant to your SKU mix—not a single hero product on perfect material.
Evaluate how the vendor documents serial records, torque sheets, and FAT photos. Discipline in the assembly hall usually predicts discipline after install.
Buyer checklist
- Request reference installations with similar substrate and speed class.
- Schedule run-off on your film or approved equivalent—not vendor default only.
- Inspect assembly areas, panel build, and serial documentation flow.
- Meet application engineers, not only sales representatives.
Quotation, contract, and acceptance points
Application engineering depth matters more than sales presentation polish. Request a meeting with engineers who size dryers, specify corona treatment, and map tension zones—not only commercial staff. Ask how they handle substrate outside their default film list, and whether they keep reference job data from installed sites with permission to share anonymized performance ranges.
Changeover observation should reflect your SKU reality. Witness plate or sleeve change, anilox swap, ink system purge, or bag-line size change relevant to your portfolio—not a single hero product on vendor-default material. Ask how long the crew needed, what went wrong in the last week of run-offs, and how punch-list items from failed tests are closed before crating.
Reference installation questions should be specific: substrate similarity, stable speed achieved over a shift, spare parts lead time for critical wear items, and whether the customer still runs the same ink or adhesive system quoted for your order. Yaoshg visitors to the Wenzhou campus typically combine assembly hall walkthrough with run-off bay scheduling when substrate samples arrive in advance—structured questions make that day productive rather than ceremonial.
Include the right to witness FAT in the contract and book dates early during peak export seasons when run-off bays are constrained.
Common mistakes and how to avoid them
Choosing solely on list price without reference visits often shifts cost to commissioning delays, spare parts gaps, and operator retraining.
Yaoshg sales and application teams can review your substrate list, layout sketch, and quotation scope before you finalize internal approval. Sharing structured questions early typically shortens FAT scheduling and reduces open items at SAT.