Buying a paper cup machine is not like buying a printer. The money leaves before the machine proves itself, the freight is expensive, and the first time you find out whether the supplier is any good is when something breaks two years later.
This is the checklist we would use if we were buying. Take it to any supplier, including us. The ones who welcome it are the ones worth talking to.
Group 1 — Does the factory exist? (Checks 1–5)
1. Ask for the factory address, then look at it on a map.
Not the sales office. The factory. Then look at the satellite view: is there a building of plausible size, with a yard, and trucks? An address that resolves to a shared office building or a residential block tells you the entity you are talking to does not make machines.
2. Ask for their business licence and check the registered scope.
A company that manufactures forming machines has manufacturing in its registered business scope. A trading company's scope reads like "sales of machinery and equipment". Neither is illegal — but you should know which one you are buying from, because it decides who actually controls your delivery date.
3. Ask how long they have been manufacturing this specific machine.
Not "how long has the company existed". Ask which model, and since when. A supplier who has made the same model for a decade has a spare-parts history and knows its failure modes.
4. Ask to see the assembly floor on a live video call.
A recorded factory video proves nothing — it may not even be their factory. A live call where you choose what the camera looks at proves a great deal. Ask them to walk over to the machine you are buying and open the electrical cabinet.
5. Ask what they make themselves and what they buy in.
Bearings, servo drives, PLCs and cameras are bought from specialists — that is normal and good. The question is whether the frame, the cams, the moulds and the assembly are theirs. A supplier who cannot answer this clearly does not know their own product.
Group 2 — Can they prove the machine works? (Checks 6–10)
6. Ask for a witnessed running test, not a demonstration.
A demonstration runs a clean machine on fresh paper for twenty minutes. A test runs it for hours, after a mould change, and lets you count the rejects. Ask for the test, and ask for the reject count in writing.
7. Ask for the measured speed, not the rated speed.
Every machine has a rated figure on the datasheet. Ask: what speed does this machine hold across a full shift? A 150 pcs/min machine that holds 128 is doing well. One that holds 95 has a problem you will pay for daily for ten years.
8. Ask which components are branded, and ask for the photos.
Japanese bearings, a named PLC, a named servo brand, a named camera. Then ask them to photograph the actual nameplates on the machine they are quoting you. Substitution of components is the most common quiet downgrade in this industry.
9. Ask for a cup-quality sample, made on that machine, posted to you.
Not a photo. A physical cup. Check the seam, the rim curl, the bottom seal and the print registration yourself. Costs you nothing and tells you more than any brochure.
10. Ask what the rejected cups look like and why.
Every machine makes rejects. A supplier who says theirs does not is either new or not telling you the truth. The useful answer names the failure modes — bottom seal, rim crack, side seam — and what causes them. This one question tells you whether you are talking to an engineer or a salesperson.
Group 3 — Will they still be there in three years? (Checks 11–15)
11. Ask for two customers you can contact, in your region or a similar market.
Names you can verify, not logos on a slide. Ask those customers three things: did the machine arrive on time, did it hit the promised speed, and when it broke, what happened.
12. Ask the price of the five most commonly replaced parts, in writing.
Bearings, heating elements, sealing dies, belts, and the PLC battery. A supplier who will not quote spare parts before the sale will quote them badly after it. This is also the fastest way to spot a machine with unusual, single-source components.
13. Ask for the delivery date in the contract, with a consequence attached.
Not "about 45 days". A date, and what happens if it slips. A supplier with control over their own production can commit to this. A trading company that is waiting on someone else's factory usually cannot.
14. Ask what happens in the first week after installation.
Who commissions the machine, who trains your operators, who pays for the engineer's travel, and how you get help at 10pm on a Sunday. Get the answer before you pay, not after.
15. Ask them to run their own checklist on themselves.
Show them this page and ask them to answer checks 1 to 14 in writing. How a supplier responds to being audited is itself the audit. The good ones answer every point, including the uncomfortable ones, and tell you where they are weaker.
The five answers that should worry you
| What they say | What it usually means |
|---|---|
| "The factory is far from the city, hard to visit." | There may be no factory, or it is not theirs |
| "The rated speed is 150, we can guarantee 150." | They either have not tested it or are telling you what you want to hear. Ask for the measured figure again |
| "Components are all from Japan/Germany." | Unverifiable as stated. Ask for nameplate photos |
| "No customer references — we respect our customers' privacy." | Some suppliers legitimately cannot share names. Ask instead for anonymised commissioning reports |
| "Price is valid only for three days." | A pressure tactic. Urgency is a negotiating tool, not a manufacturing constraint |
How to use this with us
We expect to be checked. Ask us for the factory address and the team behind the machines, the live video call, the running test, the spare-parts price list and two references. We would rather spend an extra week proving the machine than two years arguing about it.
→ Request a quotation — tell us your cup sizes, board and target output, and we will put the answers to checks 1 to 14 in the quotation itself.
