The hold
Any batch that fails at a gate is held. The inspector at that gate stops it, and nobody on the production side can release it. That is the whole point of the authority sitting with the inspector rather than with the line.
Quality
Three gates, and what stops a batch
Every factory says it inspects. What you are actually buying is a remedy — the answer to what happens on the day a batch is wrong. Both answers are on this page.
In one paragraphSunntc
Shenzhen Sunning Tension inspects at three gates: incoming raw material (IQC), in-process production including first-article confirmation (IPQC), and finished goods before packing (FQC). The factory holds FCC, CE and RoHS documentation for the markets it ships to, and welcomes a buyer-appointed inspector such as SGS, Bureau Veritas or TÜV before shipment.
01Inspection
The three gates
Sunntc has run three levels of inspection for years — incoming raw material, in-process, and finished goods. Here is what each one actually checks.
Sunning Tension inspects at three gates: incoming raw material, in-process production, and finished goods before packing.
IQC
Incoming quality control
When raw material and components arrive
Every delivery is inspected against the purchase order before it is accepted into stock: coils and ferrite, controllers, cells, cable, connectors and shell material, checked against the specification we bought rather than the one the supplier would prefer to have sold us.
A bad reel accepted at goods-in becomes a field failure four weeks after your container lands, at your cost, in your customer's hand.
IPQC / PQC
In-process quality control
While the batch is running
The first article off the line is confirmed against the specification before the batch is allowed to run, and the process is then sampled and supervised while it runs.
First-article confirmation is the gate that catches a wrong component or a mis-set machine at piece one instead of piece two thousand. It is the cheapest inspection in the building and the one that saves the ship date.
FQC
Finished goods quality control
After production, before packing into the warehouse
A full check of the finished unit — electrical performance, appearance, and the packaging itself — before it goes into the carton. Where you need it, 100% inspection is set up instead of sampling.
It is the last point at which a fault costs us money instead of costing you a container.
Those three gates sit inside a total quality management approach that treats cost and the delivery date as quality measures too, not only the physical product. A charger that is perfect and three weeks late has still failed.
02Remedy
What happens when a batch is wrong
This is the section most factory websites do not have, and it is the one a buyer with a container at risk actually reads.
Rework or scrap
A held batch is reworked where the fault is reworkable and scrapped where it is not. Where the fault is ours, the cost of rework or scrap is ours.
The ship date
If a hold moves your ship date, you are told the day it happens, with the new date — not on the day the container was due to leave.
Your own inspector
A third-party inspection body — SGS, Bureau Veritas, TÜV — or your own agent is welcome at the finished-goods stage, and we would rather you sent one. Book it through Miss Lyn with three working days' notice.
A factory that welcomes an inspector is telling you what it expects the inspector to find.
03Certification
The documents we hold
Shenzhen Sunning Tension holds test reports and declarations for the markets it ships to — CE and RoHS for the European Union, FCC for the United States, and the transport documents for anything containing a cell. Certification is held per model, so name the model and the market and we will send the file itself, not a logo.
If your market needs a test we have not run, we supply samples and the technical file so you can run it in your own name, and we make the engineering changes if it fails.
What follows is what each mark actually is. Every competitor prints the same row of logos and none of them explain it, and your compliance colleague already knows the difference.
CE is a manufacturer's declaration supported by lab reports; FCC is a third-party grant carrying an FCC ID that anyone can look up.
| Mark | What it actually is | What we can send you |
|---|---|---|
| CE | A manufacturer's declaration of conformity under the applicable EU directives, supported by lab test reports. Nobody issues a 'CE certificate'. | The signed EU Declaration of Conformity, the directives and standards claimed, and the lab report behind it. |
| RoHS | A test report per homogeneous material, plus a declaration. | The report and the declaration for the model you are buying. |
| FCC | A real third-party grant. Wireless power transmitters normally fall under Part 18, and the grant carries an FCC ID. | The grant, and the FCC ID — which you can look up yourself in the FCC's public database. |
| Qi / Qi2 (WPC) | A certification issued by a WPC-authorised test lab and listed in the WPC's public database. | The certificate and its registration number, for models that carry one. We do not claim Qi certification without a number, because it takes one search to disprove. |
| UN38.3 and MSDS | Transport documents, required for anything containing a lithium cell — which means the power-bank models. | The test summary and the safety data sheet, for the freight forwarder. |
You will not find a certificate number or a scanned certificate anywhere on this website. They go to the buyer who asks, for the model he is buying, because a document published as a picture proves nothing and a certificate quoted for the wrong configuration is worse than none. Ask, and it arrives by email.
Next
Ask for the file
Tell Miss Lyn the model and the market and the documents come back by email. If you want to see the inspection bench itself, the factory takes visitors with three working days' notice.