How to Vet a Chinese Heavy-Machinery Factory Before You Sign
A trading platform's supplier badge tells you almost nothing about who actually builds your equipment. Here is what we check on-site before a purchase order is signed.
Why the badge on the platform isn't enough
Most sourcing platforms verify that a company exists and holds basic business licensing. That says nothing about whether the factory listed under a supplier's name actually manufactures the equipment, whether it subcontracts to a lower-quality shop under pressure, or whether the quality control process holds up on a rush order. Verification on paper and verification on the floor are two different things.
Confirm the factory, not just the company
Many suppliers are trading companies operating under a manufacturer's name. We visit the actual production site and match it against the business registration to confirm who is really building the equipment.
Check production capacity against the order
A factory that can produce a sample unit is not always equipped to deliver your full order volume on schedule. We look at active production lines, not just a showroom unit.
Review quality control at the point of assembly
We check what inspection actually happens between stages of production, not just a final check before shipping, since defects caught late are far more expensive to fix.
Verify compliance documentation against the exact build
Certificates are often issued for a general product line. We confirm the documentation matches the specific configuration being shipped, since a mismatch is what holds cargo at customs later. See the IMR compliance checklist and the customs document match check for what we compare.
Speak with the factory directly, without a translator relaying intent
Requirements get softened or lost in relayed communication. Sitting at the table in Mandarin means the specification the factory builds to is the one you actually asked for.
None of this replaces a written contract, but it means the contract reflects a factory we have actually stood inside, not one we are taking a platform's word for. For an example of the result, read the CIF Ashdod refrigerant cylinder case study.
Free guide: Buying Industrial Robots from China
The official 2026 numbers, twelve questions to ask every supplier, and one EU date to plan around. You also get the weekly TADS China Intel issue.
Related reading
- Buying a Chinese Industrial Robot in 2026: The Numbers, and Six Questions to Ask
- CIF Ashdod: Sourcing High-Volume Refrigerant Cylinders Direct
- Chinese AGV and Robotic-Arm Manufacturers Heavy Industry Should Watch
- China's New Customs Rules for Machine Tools: What Buyers Should Check
Evaluating a new supplier?
Send us the factory and product details and we'll tell you what a proper vetting pass would look like for your order.
Submit Specifications