- Services mapped to ISO 9001 / IATF 16949 / ISO 14001 scope.
- IATF scope: manufacture, excludes design (Clause 8.3).
- Milling, turning, mill-turn, grinding run in-house.
- Secondary operations named, partners disclosed.
- MOQ 1 piece; lead time 3 / 7 / 30 days.
Which services are covered by certification?
ISO 9001:2015 (116024/A/0001/UK/En) covers the quality system across all services; IATF 16949:2016 (131941/A/0001/SM/En) covers the manufacture of CNC metal machining parts, excluding product design under Clause 8.3; ISO 14001:2015 (116024/B/0001/UK/En) covers the environmental system. We state scope per service so you know what each certificate protects.
How does ISO 9001 cover milling and turning?
ISO 9001 governs the quality system behind every cut: incoming material control, in-process inspection, calibration of the Hexagon CMMs and KEYENCE microscope, and corrective action when a deviation appears. It is the discipline that lets a tolerance claim be repeatable rather than lucky. The certificate number is verifiable with the registrar.
How does IATF 16949 apply to the services?
IATF 16949 applies to the manufacture of CNC metal machining parts. Because its scope excludes product design under Clause 8.3, it covers how we make the part to your print, not how the part was designed. For automotive-linked work this is the certificate that matters, and the exclusion is stated honestly so you plan around it.
How does ISO 14001 cover the services?
ISO 14001 covers the environmental system: how coolant, swarf, and finishing byproducts are handled, and how the shop limits its footprint. For buyers with their own environmental requirements, this certificate is part of the supply-chain audit, and the number (116024/B/0001/UK/En) is verifiable.
What documentation ships with each service?
Each order ships with the material mill certificate, the XRF verification record, a CMM or inspection report on critical dimensions, and a certificate of conformity. For treated parts we add the partner certificate. Request the exact package in your PO and we supply it as standard.
The documentation is not a favor; it is the evidence that the service was performed to the print. A report that names the instrument, the characteristic, and the measured value turns a "we checked it" into something you can re-check at your own receiving dock. Hold every supplier to the same package and the ones who resist are the ones worth passing over.
For automotive and regulated work the package extends to PPAP and FAI. Those are the structured submissions that prove the process, not just the part, and they are what a compliance-minded buyer asks for when the consequence of a failure is a recall rather than a rework.
How do you verify the certificates are real?
Ask for the numbers and confirm them with the certifying bodies. We provide 116024/A/0001/UK/En, 131941/A/0001/SM/En, and 116024/B/0001/UK/En in writing and welcome the check. A real factory answers without hesitation; a trading desk does not.
Which secondary operations are covered, and by whom?
Anodizing, plating, heat treatment, passivation, and basic assembly are available. In-house steps are stated as such; partnered steps name the supplier and carry their certificate with your lot. Disclosing the partner keeps your traceability chain complete and your audit defensible.
How do you pick the right process for a feature?
Each process earns its place by what it can hold and how many setups it removes. Milling suits prismatic parts with faces, pockets, and holes. Turning suits round parts and is the cheaper way to hold a diameter tolerance. Mill-turn removes a setup by combining both on one machine, which cuts the stack-up risk of moving a part between fixtures. Grinding is the finish pass that reaches ±0.002 mm where milling or turning tops out at ±0.003 mm (milling) / ±0.002 mm (turning). Pick the process that holds the tolerance you actually print, and let the supplier argue for anything tighter.
| Process | Best for | Tolerance you can hold | Why it costs what it does |
|---|---|---|---|
| CNC milling (3/4/5-axis) | Prismatic parts, pockets, faces, hole patterns | ±0.003 mm (milling) / ±0.002 mm (turning) | Setups and cycle time on complex geometry |
| CNC turning | Round parts, diameters, threads, shafts | ±0.002 mm | Fast material removal around one axis |
| Mill-turn | Parts with both round and prismatic features | ±0.003 mm (milling) / ±0.002 mm (turning) | One setup instead of two, fewer stack-ups |
| Precision grinding | Tight diameters, faces, and finishes | ±0.002 mm | A finish pass on dedicated machines |
When a quote prices a ±0.003 mm (milling) / ±0.002 mm (turning) feature the same as an open one, ask what measurement backs it. A tolerance is not a line on a drawing; it is a measurement pass and a Cpk study you either paid for or did not.
What should you ask about secondary operations?
Anodizing, plating, heat treatment, and passivation often leave the machine shop. That is normal; hiding it is not. Ask who runs each step and whether their certificate travels with your lot.
- Which operations run in-house, and which are subcontracted?
- Who is the partner for each outsourced step, and what certificate do they hold?
- Does the partner certificate ship with my lot, or only on request?
- How is the treated part measured back into tolerance?
- Does the traceability chain name every hand-off without a gap?
A disclosed partner keeps your audit defensible. An undisclosed one turns a clean lot into a compliance question you discover after the parts land.
How does the material you pick change the service you need?
Material drives the process, the tooling, and the cost, and the same drawing in two materials can be two different jobs. Aluminum runs fast on standard tooling and is the default for prototypes. Stainless work-hardens and needs slower feeds and sharper tools. Alloy steel like 4140 cuts predictably but usually needs heat treatment after. Titanium is strong per gram but slow to machine and hard on tool life. Pick the material with the service, or the quote will quietly absorb a mismatch.
| Material | Process it suits | Watch item |
|---|---|---|
| 6061 / 7075 aluminum | Milling and turning at high speed | Confirm temper; anodizing response varies by alloy |
| 303 / 304 / 316 stainless | Turning and milling with slower feeds | Grade by XRF; 303 is free-machining, 316 is not |
| 4140 alloy steel | Turning, then heat treatment | Hardness after treatment, not before |
| Titanium TA2 / TC4 | Careful milling and turning | Allow a slower cycle and more tool changes |
| PEEK / engineering plastics | Milling and turning for light parts | Design around thermal expansion |
What tolerance can each service hold, and how is it verified?
The tolerance a service can hold is only as real as the measurement behind it. Milling and turning hold ±0.003 mm (milling) / ±0.002 mm (turning) on a CMM or micrometer; grinding reaches ±0.002 mm and is followed by a CMM pass. Every tight feature should map to an instrument on the report, not a capability sentence in the quote.
| Service | Held tolerance | Verification instrument |
|---|---|---|
| CNC milling | ±0.003 mm | Hexagon CMM, micrometer |
| CNC turning | ±0.002 mm | Hexagon CMM, micrometer |
| Mill-turn | ±0.003 mm (milling) / ±0.002 mm (turning) | Hexagon CMM, in-process probe |
| Precision grinding | ±0.002 mm | CMM after grinding |
When a quote prices a ±0.003 mm (milling) / ±0.002 mm (turning) feature the same as an open one, ask what measurement backs it. A tolerance you cannot point to on a report is a tolerance you are paying for but not receiving.
What should you put in the PO to make the compliance trail automatic?
A purchase order that names the documentation makes the compliance trail a contract term instead of a follow-up request. State these items in the PO and they ship by default.
- The certificate numbers to be attached, and the scope statement.
- The material mill certificate and the XRF verification record.
- The CMM or inspection report on the critical dimensions.
- The SPC chart or Cpk study where a characteristic is process-critical.
- Any outsourced step with the partner name and their certificate.
Writing the documentation into the PO costs nothing and removes the most common post-delivery argument: the one about which papers were supposed to come with the parts. A supplier that accepts the line in the PO is a supplier that expects to deliver it.
How does a prototype order de-risk a production run?
A prototype is the cheapest way to test both the part and the supplier before you commit to volume. We take orders down to a single piece, so you can validate the drawing, the tolerance, and the documentation package on one part before you release a production quantity. The MOQ is 1 piece.
The prototype pass catches the things a drawing cannot show: a tolerance that is harder to hold than the print suggests, a material that machines differently than expected, or a documentation gap that only shows up when the first report lands. Fixing those on one piece costs a day; fixing them on a thousand pieces costs a run.
Run the prototype through the same due diligence you would run on production. Ask for the CMM report, the material cert, and the certificate numbers on the prototype, not just on the production lot. A supplier that documents a single piece the way it documents a production run is a supplier whose system is already in place.
What does the service workflow look like from drawing to delivery?
The workflow is where compliance either happens or gets skipped, so it pays to know the sequence. It runs: drawing review and DFM feedback, material incoming inspection with XRF, machining on the named equipment, in-process measurement, any finishing step, final inspection on the CMM, and documentation assembly. Each stage has a record, and the records travel together as the lot.
Ask the supplier to walk you through their sequence and name the record at each stage. A shop that can describe its workflow with equipment and documents is a shop where the workflow is real. A shop that answers "we just machine it" is a shop where the stages exist but the records do not, and a stage without a record is a stage you cannot audit.
Change control is the last stage most buyers forget. A drawing revision, a material substitution, or a tolerance change mid-run has to be recorded and re-approved, not quietly adopted. Ask how the supplier handles a change request, and the answer tells you whether the documentation trail survives the first revision or collapses at it.
What this shop actually runs
If you ask for capability evidence, you deserve a specific answer. This facility operates 100+ CNC machines across 6,800 m2 in Dongguan, China, staffed by 100+ people. The machines, listed by category:
- 5-axis machining centres (10+) - Mazak VARIAXIS I-600 (510/910/510 mm travel, 12,000 rpm, 22 kW, 71.6 N·m, 30-tool BT40) and Mazak INTEGREX I-250H S (B-axis 0.0001°, 24 kW, 124 N·m, 38-tool HSK-A63). The work covers compound-angle parts, single-setup multi-face prismatic work, and aerospace fittings where datum transfer loss is unacceptable.
- 3-axis / 4-axis machining centres (50+) - Brother SPEEDIO S500Z2N / S700Z2N (10,000 rpm, 14/21-tool ATC, 0.7 s tool-to-tool, Z-axis 2.2 G) and Mazak VCE-430A L / VCE-570C L (10,000 rpm, 118 N·m, 24-tool ATC). The work covers prismatic parts, plates, brackets, housings.
- Swiss-type turning centres (10+) - Citizen Cincom A20-3F7 (Φ20 mm, 10,000 rpm), TSUGAMI B0206-III / B0205-III (Φ20 mm, 0.1 µm), STAR SR-32JII / SR-32J Type N (Φ32 mm, 8,000 rpm). The work covers long, slender rotational parts at ±0.002 mm.
- CNC turning centres (20+) - HEADMAN T70M/1250 (720 mm swing, 117 mm bore, 3,000 rpm, BMT75 12-station turret). The work covers shafts, bushings, flanges up to ±0.002 mm.
- Wire EDM (5+) - Sodick AQ535L (550/350/300 mm travel, ±20° taper, 800 kg workpiece). The work covers hardened tool steel, internal splines, sharp internal corners that milling cannot reach.
- Inspection: Hexagon CMM + 20+ gauges - Hexagon CMM for coordinate measurement, plus vision system, profilometer, hardness tester, coating thickness gauge, XRF for material verification. The 10:1 rule (gauge 10x more accurate than the band) is applied to every feature.
- Machine highlights - VARIAXIS I-600: one-setup multi-face 5-axis + MAZA-CHECK auto-calibration; INTEGREX I-250H S: DONE-IN-ONE mill-turn, B-axis 0.0001° + Ai thermal shield; SPEEDIO S500Z2N / S700Z2N: Z-axis 2.2 G + 0.7 s ATC; Swiss-type: guide-bush switchable + 0.1 µm resolution.
Tolerance bands: ±0.003 mm milled, ±0.002 mm turned, ±0.002 mm ground or wire-cut. Capability indices: Ppk >= 1.67 at the initial study; Cpk >= 1.33 ongoing in production.
Certifications: ISO 9001:2015 (116024/A/0001/UK/En) · IATF 16949:2016 (131941/A/0001/SM/En, design clause 8.3 excluded) · ISO 14001:2015 (116024/B/0001/UK/En), held by Dongguan Zhuohang Ltd (USCC 91441900MA4UWT6X39, since 2005).
Service area: we supply Austria, Belgium, the Czech Republic, Denmark, France, Germany, Greece, Hungary, Ireland, Italy, the Netherlands, Spain, Sweden and the United Kingdom in Europe; Brazil, Canada, Mexico and the United States in the Americas; China, Israel, Japan, Singapore and Sri Lanka in Asia; Australia and New Zealand in Oceania; and South Africa in Africa, with worldwide delivery from China.
Contact: Felipe Iglesias, [email protected], +86 13126536955.
Send your drawing for a quote.
Email [email protected] or call +86 13126536955 for a review and quote.
Frequently Asked Questions
Which CNC machining services do you provide?
We provide 3-axis, 4-axis, and 5-axis CNC milling, CNC turning, single-setup mill-turn, and precision grinding, plus deburring, tapping, laser marking, and assembly — all under one ISO/IATF certified quality system.
What certifications cover the services?
Yes. We hold ISO 9001:2015, IATF 16949:2016, and ISO 14001:2015. IATF 16949 scope excludes product design under Clause 8.3, so we are a build-to-print manufacturer.
What does the IATF 16949 scope exclude?
IATF 16949:2016 excludes product design under Clause 8.3. We are a build-to-print manufacturer — we machine to your print and advise on manufacturability, while design ownership stays with you.
What documentation ships with parts?
Material certificates with XRF verification, CMM dimensional reports, and SPC charts ship with your parts. For automotive and regulated work we can also run PPAP and FAI packages on request.
What tolerances do your services hold?
In short, ±0.003 mm on CNC milling, ±0.002 mm on CNC turning, and ±0.002 mm for precision grinding. We verify critical dimensions on Hexagon CMMs, with process capability Ppk ≥ 1.67 at the initial study on key characteristics and Cpk ≥ 1.33 on general characteristics.
How do I get a machining service quote?
Email your STEP, IGES, or 2D drawing to [email protected]. We return a review and a quote, usually within one business day, with the certificate numbers available on request.
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Standards referenced on this page
- ASTM A276/A276M-17 — Standard Specification for Stainless Steel Bars and Shapes
- ASTM B211/B211M-19 — Standard Specification for Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and Wire
- ISO 14001 — Environmental management systems — Requirements with guidance for use