Most bad experiences with Chinese packaging machines trace back to one moment: choosing the wrong supplier. Not because the buyer was careless, but because the difference between a genuine manufacturer, a good trading company, and a mismatched reseller is invisible on a quotation. This checklist makes it visible.

1. Manufacturer or Trading Company?

Neither is automatically bad, but you should know which you are dealing with:

  • Manufacturers have concentrated catalogs (one machine family), factory-floor videos, and engineering staff who answer technical questions directly
  • Trading companies have broad catalogs (“from filling machines to forklifts”), beautiful brochures, and sales staff who forward every technical question

Ask directly: “Is your factory the manufacturer of this model? What is your workshop address?” Then verify: real factories in Wenzhou, Ruian, Foshan, Dongguan, Zhangjiagang and similar clusters will give you an address you can check on a map and in business registrations.

For custom machines, buy factory-direct. For one standard machine at low volume, a good trading company can be fine.

2. Check the Supplier’s Actual Export Experience

A factory that has exported 500 machines to your region knows your voltage, plug standard, certification expectations, and documentation needs. A factory that has exported twice will learn on your order. Check:

  • Export markets listed in their profile (our supplier directory shows export shares for every company)
  • Whether they mention your market’s requirements unprompted (CE documentation for Europe, UL components for North America, 60Hz wiring for the Americas)
  • References from buyers in your country or a neighboring market

3. Run a Video Audit - Not Just a Video Call

Beyond the product test (non-negotiable - see the buying process guide), a 20-minute video walk-through of the factory tells you more than any certificate:

  • Ask them to walk from the gate to the workshop where your machine model is assembled
  • Look for: multiple machines of the same model in production (serial production), CNC and laser equipment, a testing area with machines running
  • Ask them to show the nameplate of a machine in production, then verify the model against your quote

A factory that hesitates to show its own production line is answering your question.

4. Test Their Engineering, Not Their Sales Team

Before any money moves, send a technical question that requires an engineer: “For my product at 40 bags/min with a 150mm film, what former size and dosing system do you recommend, and what accuracy should I expect?”

  • A real factory answers within days with specific numbers and trade-offs
  • A middleman answers “yes we can, best price for you” - or forwards your question and goes quiet

The quality of this answer predicts the quality of your commissioning support a year later.

5. Red Flags That Should Stop the Deal

  • Price dramatically below all other quotes - something (dosing system, frame material, warranty) has been removed
  • Refusal or stalling on video tests with your actual product
  • Payment to a personal account or a company name that does not match the PI - always pay the business bank account on the proforma invoice
  • “100% guarantee, no need for inspection” - confident factories welcome pre-shipment inspection; they have nothing to hide
  • Catalog covers everything - from packaging machines to generators to furniture

6. Use Data Where You Can

Manual checks catch fraud; data catches mismatch. Supplier index scores, product coverage and export histories are compiled in our Chinese packaging machinery supplier directory - every listing shows the company’s main products, location, export markets and index rating, so you can shortlist before the first email.

Verification takes two or three days. It is the highest-return investment in the entire purchase: the machine you reject at the shortlist stage costs nothing, and the machine you reject after shipment costs everything.