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Air Bar Nex 4 Quality Control Process for Bulk Buyers
Published 2026 · VapeWholesaleHub trade desk
Quality control is where a Nex 4 order either protects or damages downstream relationships.
What follows is a practical view of quality control process for the Nex 4, written for people who place repeat orders rather than one off buys.
Shops that receive a short briefing on quality control process convert noticeably better than shops that only receive stock.
Why quality control process matters on the Nex 4
Incoming inspection sampling catches most issues before they reach shops.
Retail staff rarely ask about quality control process directly, but their questions almost always lead back to it.
Functional testing of a sample from each batch is standard practice.
Reference specification
| Item | Value |
|---|---|
| Model | Nex 4 |
| Brand | Air Bar |
| Category | Pricing |
| Battery | 1300 mAh |
| Output range | 12-80 W |
| Capacity | 1.2 ml |
| Charging | USB-C 2A |
| Coil options | 1.0 / 1.2 ohm |
| Carton quantity | 120 units |
Documented defect rates make supplier conversations objective.
Practical notes for buyers
Documentation is not paperwork for its own sake; on quality control process it is the difference between a clean clearance and a delayed one.
Freight consolidation changes the answer to quality control process at container scale, which is why small and large buyers reach different conclusions.
Checklist
- Check carton quantities against the commercial invoice line by line.
- Keep certificates current and filed against the exact model name.
- Agree in advance who pays for return freight on a defect claim.
- Log sell through by account for the first eight weeks.
- Record the arrival condition with photographs on the day of delivery.
- Request batch photographs and a packing list prior to shipment.
Commercial terms
Volume commitments work best when they are structured as a rolling target rather than a single fixed number.
Agreeing a defect handling procedure before the first shipment removes emotion from later conversations.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (56 units) | Tier 1 | 14-21 days |
| Pallet (1807 units) | Tier 2 | 30-45 days |
| Container (6714 units) | Tier 3 | 30-45 days |
Frequently asked questions
What defect rate is acceptable for Nex 4?
Industry practice works to a low single digit per thousand, with dead on arrival units replaced.
Is documentation provided for customs?
Commercial invoice, packing list and the relevant certificates are supplied; the importer's broker handles the declaration.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
Can several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
Final word
The buyers who do this well are not luckier; they are simply more consistent about the basics.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.
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