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Freemax Rexa 4 Quality Control Process Checklist 2026
Published 2026 · VapeWholesaleHub trade desk
Quality control is where a Rexa 4 order either protects or damages downstream relationships.
Buyers who treat quality control process as a commercial discipline rather than an afterthought tend to hold margin for longer.
Cash flow is the quiet constraint behind quality control process: the cheapest option is rarely the one that frees the most working capital.
Why quality control process matters on the Rexa 4
Incoming inspection sampling catches most issues before they reach shops.
Where two suppliers look identical on price, quality control process is usually the variable that separates them over a full year.
Functional testing of a sample from each batch is standard practice.
Reference specification
| Item | Value |
|---|---|
| Model | Rexa 4 |
| Brand | Freemax |
| Category | Vape Devices |
| Battery | 650 mAh |
| Output range | 8-30 W |
| Capacity | 2.0 ml |
| Charging | USB-C 1A |
| Coil options | 0.6 / 0.8 / 1.0 ohm |
| Carton quantity | 100 units |
Documented defect rates make supplier conversations objective.
Practical notes for buyers
The most common mistake is optimising for the first order instead of the fourth, which is where Rexa 4 economics actually settle.
Consistency across batches matters more than peak performance for Rexa 4, and quality control process is where inconsistency first appears.
Checklist
- Retain one sealed sample carton from every batch for reference.
- Keep certificates current and filed against the exact model name.
- Log sell through by account for the first eight weeks.
- Confirm the exact configuration in writing before the deposit is paid.
- Record the arrival condition with photographs on the day of delivery.
- Request batch photographs and a packing list prior to shipment.
Commercial terms
Lead times are a function of component availability as much as factory capacity, so buffers should reflect both.
Most long running accounts settle into a rhythm of monthly top ups with one larger seasonal build per year.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (153 units) | Tier 1 | 7-12 days |
| Pallet (949 units) | Tier 2 | 14-21 days |
| Container (7340 units) | Tier 3 | 30-45 days |
Frequently asked questions
What defect rate is acceptable for Rexa 4?
Industry practice works to a low single digit per thousand, with dead on arrival units replaced.
What happens if a batch fails inspection?
The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.
How quickly can a repeat order be produced?
For established configurations production typically runs two to four weeks, with transit on top depending on the chosen method.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
Final word
None of this is complicated, but it does need to be written down and reviewed on a schedule.
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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