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Sourcing THC Vape: factory audit checklist quick reference

Buyers come to us for THC vape after a bad quarter: dead stock on one side, empty shelves on the other. The cause is usually the same, an assortment built from a catalogue instead of from sell-through data. This page explains how we rebuild that balance for private label sellers.

Published 16 September 2025  ·  VapeWholesaleHub  ·  Reading time 8 min

Packaging proof for the export market, approved before the run.
Packaging proof for the export market, approved before the run.
Surface finish under raking light, one of the cosmetic checks.
Surface finish under raking light, one of the cosmetic checks.
Close inspection of the assembly line before the batch is released.
Close inspection of the assembly line before the batch is released.

How the price is actually built

We work with private label sellers 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.

Unit price breaks usually land at 300, 800 and 1600 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.

We publish a realistic band of 3.25 to 9.23 per unit for standard configurations at 300 units. Below that band you are buying a lighter specification; above it you are paying for finish, packaging or a smaller run.

Sell-through notes for the shop floor

Counter space is finite. Three well-chosen SKUs outsell nine crowded ones, and the empty space signals a curated range rather than a clearance table.

Shelf position decides velocity as much as price. Keep THC vape products at eye level, one facing per SKU, and rotate the trial line every quarter so the display keeps earning attention.

For private label sellers, the practical answer is usually a shorter range: two core lines, one step-up, one trial SKU. Everything else is inventory risk wearing a nice finish.

Keeping the second shipment identical

We keep the specification sheet for every order on file. Two years later, when a customer asks whether a pod is compatible, the answer is a lookup rather than a guess.

Reorders are the real test of a supplier. If the second shipment does not match the first, the relationship is over regardless of price, so we treat the reorder as the actual deliverable.

  • Private label files archived for future rebrands
  • Consolidated or split shipping, quoted both ways
  • Batch codes traceable from carton back to production date
  • Mixed SKU cartons to spread first-order risk
  • Reference sample retained from every batch
  • Seven-day defect reporting with replace-or-credit

The checks behind every shipment

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.

10 separate checks run before a carton is sealed: electrical, mechanical, leak, finish and packaging. Anything outside tolerance is quarantined the same day and reported to you, rather than shipped with a hope and a discount.

Specification summary

Typical specification for this category
Volume0.5 ml
HardwareCeramic core
ThreadProprietary pod
AirflowAdjustable
WindowFull glass
PackagingChild-resistant box
Minimum order100 units per SKU, mixed cartons allowed
Lead time30 working days after artwork approval

We would rather lose an order at quotation stage than explain a mismatch after delivery, which is why the specification conversation comes before the price conversation.

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.

Can we order samples before committing?

Yes. Sample orders are shipped by air express and the cost is credited against your first production order above 300 units. We would rather you handle the sample than approve a specification from a photograph.

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.

Related reading

Need a quotation on THC vape products?

Send destination market, target price and quantity. Same-day reply on working days.

Tel / WeChat / WhatsApp +86 13711127975  ·  vape@0099933.xyz

Talk to the supply team

Ask for a quotation on THC vape products

Tell us the market you sell into and the price band you work in. You will get a specification and a landed cost estimate, not a catalogue dump.

What to send

Destination market, target retail price, quantity per SKU, and whether you need private label. With those four lines we can quote the same day.

Samples ship by air express and the cost is credited against your first production order.

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