Sourcing Vape Cartridge: commercial invoice checklist
We work with first-time buyers who order between a few hundred and a few thousand units at a time, and we treat both ends the same way: a written specification, a sample you approve, and a production run that matches the sample.
Published 30 April 2026 · VapeWholesaleHub · Reading time 5 min
Quality control, in plain terms
If you are comparing three quotes for vape cartridge, compare the paperwork first. Test reports, artwork files, batch coding and the replacement clause tell you more about a supplier than the unit price on page one.
Flavour drift between batches is the quiet killer of repeat orders. We retain a sealed reference sample from every run so a complaint six weeks later can be compared against what actually left the building.
Leak complaints almost always trace back to one of three things: an over-torqued centre post, a seal that sat in a hot container, or a fill volume pushed past the design limit. We cap fill volume slightly below maximum for exactly that reason.
Transit, consolidation and timing
We can consolidate mixed orders of vape cartridges into one shipment. Consolidation saves freight but adds handling days, so we quote both a consolidated and a split option and let you choose.
Documentation travels with the goods: commercial invoice, packing list, and the certificate set for your market. We send a scanned copy before dispatch so your broker can clear the file in advance.
Where the margin really sits
The cheapest way to lower your cost per unit is usually to remove a SKU, not to negotiate a discount. Fewer lines means larger runs, fewer changeovers and a better price at the same quality.
Unit price breaks usually land at 50, 200 and 400 pieces. Between those steps the cost curve flattens, which is why pushing a 200 unit order to 500 often costs less per unit than buyers expect.
- Consolidated or split shipping, quoted both ways
- Artwork proof plus physical dummy for custom packaging
- Batch codes traceable from carton back to production date
- Specification locked in writing before production starts
- Seven-day defect reporting with replace-or-credit
- Cartons drop-tested and pallet-counted for clean freight
After-sales, replacements and reorders
Technical questions usually arrive at the worst possible moment, which is why we answer them on WhatsApp as well as email. A photo and a two line message resolves most issues faster than a ticket.
Every account gets a named contact who has actually seen the product. Being passed between three people to answer one question about a coil resistance is the fastest way to lose a buyer, so we do not organise support that way.
Specification summary
| Volume | 0.5 ml |
| Core | Mesh |
| Resistance | 1.5 ohm |
| Thread | 510 thread |
| Airflow | Bottom |
| Packaging | Tube |
| Minimum order | 200 units per SKU, mixed cartons allowed |
| Lead time | 30 working days after artwork approval |
If any of this is unclear, the fastest route is a message rather than a meeting. Send the market you sell into and the price band you work in, and you will get a specific answer instead of a brochure.
Frequently asked
Can you ship to multiple locations?
Yes. Split shipments are quoted separately because consolidation and splitting price differently. Tell us the destination list at quotation stage and we will show both options.
What happens if part of the order is defective?
Report within seven days with photos and the batch code. Confirmed defects are replaced or credited on the next shipment. The failure is logged by mode and batch, and reviewed monthly with the factory.
What documents come with a shipment?
Commercial invoice, packing list, and the certificate pack for your market: test reports, declaration of conformity and safety data sheets. We send scans before dispatch so your broker can pre-clear the file.
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Need a quotation on vape cartridges?
Send destination market, target price and quantity. Same-day reply on working days.
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