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Quality and Inspection

We are not ISO 9001 certified. We say that here rather than let you discover it during supplier approval. What we have instead is a measuring room, a first article checked before the rest of the run is cut, and a report with the values we actually measured.

Inspector checking machined aluminium parts on a video measuring system (VMS) in the GY Machining measuring room
Video measuring system · measuring room
How it works

Every run starts with one measured part

The first article off every setup goes to the measuring room before the rest of the batch is cut. If a toleranced feature is out, we correct the setup then — not after two hundred parts. You receive the report as a PDF, and for a first order we send it before the parts ship so you can approve the dimensions while they are still on our floor.

Sample first-article dimensional inspection report from GY Machining: 14 characteristics measured on a CMM, all within tolerance
Sample first-article report · click to open full size
What is in the report

First-article dimensional report

One page per part: nominal, tolerance, measured value and deviation for every toleranced feature, thread and surface-finish checks, ambient temperature, and who inspected, reviewed and released it. Metric with inch in brackets, or the other way round, to match your drawing.

  • Coordinate measuringCMM with Renishaw PH10M head
  • OpticalProfile projector
  • ThreadsGO / NO-GO gauges
  • Surface roughnessRa, measured not estimated
  • Unmarked dimensionsISO 2768-mK
  • FitsISO 286 IT6 – IT8
  • Material certificatesEN 10204 3.1 on request
  • RoomTemperature-controlled
Stainless steel valve body with flange and cross-bored ports, machined and CMM inspected at GY Machining
Stainless valve body · every bore and port measured
CROMA bridge-type coordinate measuring machine in the temperature-controlled measuring room at GY Machining, Dongguan
Bridge-type CMM · temperature-controlled room
Sample room

We have solved problems like yours before

Sample room at GY Machining in Dalingshan, Dongguan: four display cabinets of retained CNC machined parts in stainless steel, aluminium and brass
Sample room · four cabinets of retained parts · click to enlarge
Why it matters to you

Experience you can see, not a certificate you have to trust

The cabinets in our sample room hold retained parts from the custom jobs we have run: stainless fittings, aluminium electronic housings, brass valve bodies, motor mounts and flanges, manifold blocks with tight positional tolerances, thin-walled sleeves, knurled and threaded parts in the hundreds. Every one of them was a customer’s own design. None of it is catalogue product, and none of it is for sale — it is the record of what we have already worked out.

Many of these jobs were difficult the first time: walls under a millimetre, deep bores that had to stay round, materials that gum up or work-harden, finishes that had to match a part made somewhere else. Each one taught us something about fixturing, tooling or sequence that we now bring to the next drawing that looks like it.

That is what you get before we cut metal. Bill reads your drawing, comes back within 16 hours with the questions that decide whether the part works, and we agree the answers in writing before the order is confirmed.

What you get

Documents that travel with the parts

First-article report

A PDF with measured values, not a copy of your drawing with ticks next to it.

Material certificate

EN 10204 3.1 mill certificate on request, traceable to the batch we cut from.

Finish declarations

RoHS and REACH declarations for anodising, plating and coating.

Photographs

Pictures of the finished run before it is packed, so there are no surprises at your dock.

Packing list and invoice

HS codes and a commercial invoice with every shipment, so customs has what it needs.

Remake or credit

If a toleranced feature is out on delivery, tell us within 14 days and we remake or credit it.

Being straight with you

What we do not have

A supplier who hides this costs you weeks. Here it is up front: we hold no ISO 9001, IATF 16949, AS9100 or ISO 13485 certification, we are not ITAR-registered, and we do not take export-controlled work. We machine to your drawing and prove it with measurements. For many buyers that is enough; for some it is not, and it is better for both of us to know that before the first order rather than after.

Will you still quote if my company requires an ISO 9001 supplier?
We will quote, and we will say plainly that we cannot meet that requirement on paper. Some buyers can approve a supplier on measured results and a sample order; if your process cannot, we would rather you spend your time elsewhere than have a purchase order cancelled at audit.
Can you work to our inspection plan instead of yours?
Yes. Send the plan or the balloon drawing and we will report against your item numbers in your format. If you need a specific gauge R&R or a sampling level, say so in the RFQ so it is in the price rather than a surprise later.
Do you keep records of past orders?
Yes. Drawings, programs, setups and reports are kept per part number, so a repeat order is machined the same way as the first and we can send you the previous report if you need it for your own file.
What happens if a part is wrong?
Tell us within 14 days of delivery. We remake it or credit it — we would rather lose the margin on one order than the customer. What we will not do is argue about a measurement we can repeat on our own CMM.
Related

How parts get made here

CNC Milling

32 machining centres, 2/3/4-axis, ±0.002 mm achievable. CNC milling →

CNC Turning

Twelve lathes, Ø3–250 mm, ISO 286 IT6–IT8. CNC turning →

Wire & Sinker EDM

Twelve machines for hardened steel and sharp internal corners. Wire EDM →

Want to see a real report before you order? Ask and we will send one.

A sample first-article report, with illustrative values — your report carries your part number and your tolerances.

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