Zhuohang Precision Machining FactoryCNC Machining Shop

CNC Machining Shop Factory

On the floor we run Hexagon CMMs, a KEYENCE laser microscope, an XRF spectrometer for material grade, a micro-Vickers for hardness, a Fischer coating gauge, and salt-spray and tensile testers. Incoming material is XRF-checked against the mill certificate. The equipment is not a showroom piece; it is the proof behind every tolerance we quote.

A buyer visiting the floor should see the measurement gear next to the machines, not in a separate room nobody enters. Ours sits where the parts are measured.

The measurement equipment list is also a capacity statement. Two Hexagon CMMs, a KEYENCE laser microscope, an XRF spectrometer, a micro-Vickers, a Fischer gauge, and salt-spray and tensile testers mean the factory can verify what it cuts without sending the part out to a third-party lab. That is faster for you and keeps the measurement record inside the same traceability chain as the machining.

InstrumentMeasuresCatches
Hexagon CMMGeometry and critical dimensionsSize and position outside tolerance
KEYENCE laser microscopeEdges and small featuresBurrs and fine geometry a probe misses
XRF spectrometerMaterial compositionA substituted or mixed alloy
Micro-VickersHardnessA heat-treat step that missed spec
Fischer gaugeCoating thicknessPlating or anodizing outside range

Which certifications does the factory hold?

ISO 9001:2015 (116024/A/0001/UK/En), IATF 16949:2016 (131941/A/0001/SM/En, manufacture of CNC metal machining parts, excluding product design under Clause 8.3), and ISO 14001:2015 (116024/B/0001/UK/En). The numbers are verifiable with the registrars. The IATF scope is stated honestly: we are build-to-print, not a design owner.

CertificateNumberWhat it covers
ISO 9001:2015116024/A/0001/UK/EnQuality management system across all machining services
IATF 16949:2016131941/A/0001/SM/EnManufacture of CNC metal machining parts, excluding product design under Clause 8.3
ISO 14001:2015116024/B/0001/UK/EnEnvironmental management system

Read the table as a map of what each certificate can and cannot promise. ISO 9001 promises a managed system, not a specific tolerance. IATF 16949 promises automotive-grade process control, not product design. ISO 14001 promises environmental management, not dimensional accuracy. A supplier that lets you read one certificate as the other is overselling, and overselling on compliance is the first thing a diligent buyer should question.

How does compliance extend beyond certificates?

Certificates are the floor. Beyond them, compliance covers labor practices, environmental responsibility, and customer IP protection. Our code of conduct addresses anti-forced-labor, anti-child-labor, confidentiality, and data protection. Ask to see it alongside the certificates; a shop that will not show its code of conduct is telling you something.

IP protection deserves its own line in a diligence review. A build-to-print factory sees your drawings, your tolerances, and often your intended application. Ask how the shop protects that — NDAs, access controls on files, and whether your drawing is ever shown to another customer's project. The answer is part of the compliance picture, not an afterthought.

Environmental compliance is the third leg, and it matters more to some buyers than any dimension. ISO 14001:2015 (116024/B/0001/UK/En) means the shop tracks waste, coolant, and energy with the same discipline it tracks tolerances. For you whose own customers audit the supply chain, that certificate is a pass, not a nice-to-have.

Can I visit the factory to verify compliance?

Yes. We welcome buyer and third-party audits at No. 8, Shuibian Songyuan Road, Hengli Town, Dongguan. A visit lets you count the machines, see the measurement equipment, and confirm the legal entity in person, which is the strongest diligence step available. Arrange it through [email protected] or +86 13126536955.

A third-party audit carries more weight than a self-guided visit for regulated buyers. An independent auditor verifies the certificates, the machine list, and the quality records without the supplier curating what you see. We accept third-party audits, and we keep the records an auditor will ask for, because a shop that is ready for an audit is a shop that runs its floor to a standard, not to a tour.

What does a remote audit look like when you cannot visit?

Not every buyer can fly to Dongguan before the first order, and a remote audit can still get you most of the way there. Ask for a video walkthrough keyed to the machine list, so you can see the brands and the counts you were quoted; ask to see the inspection bench, not just the machining floor; and ask for a live call where the contact walks a specific machine and its recent work. A shop that can do this on short notice has nothing to hide.

The remote audit is weaker than a physical one, but it catches the worst risks — a broker with no floor, a machine list that does not match the building, a certificate that cannot be shown. Run it early, before you send a deposit, and treat any refusal to walk the floor live as the red flag it is.

Whether you visit in person or over video, the goal is the same: confirm the floor, the machines, and the entity match the paperwork you were quoted. When they do, you have a supplier; when they do not, you have a conversation to end.

What this shop actually runs

Ask for capability evidence and the answer should be specific. The facility behind this guide runs 100+ CNC machines on a 6,800 m2 floor in Dongguan, China, with 100+ staff. The machine list, 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). Applied to 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). Applied to 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). Applied to 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). Applied to shafts, bushings, flanges up to ±0.002 mm.
  • Wire EDM (5+) - Sodick AQ535L (550/350/300 mm travel, ±20° taper, 800 kg workpiece). Applied to 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.

Tolerances held: milling ±0.003 mm, turning ±0.002 mm, grinding and wire EDM ±0.002 mm. Capability: Ppk >= 1.67 initial and Cpk >= 1.33 in production on key characteristics.

Certifications: ISO 9001:2015 (116024/A/0001/UK/En), IATF 16949:2016 (131941/A/0001/SM/En, clause 8.3 design excluded, disclosed openly) and ISO 14001:2015 (116024/B/0001/UK/En), issued to Dongguan Zhuohang Ltd, USCC 91441900MA4UWT6X39, established 2005.

Service area: 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 — built in China, shipped worldwide.

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

Precision grinding workshop at CNC Machining Shop
Grinding to ±0.002 mm
Shop floor management at CNC Machining Shop
Organized floor for high-mix work
Mazak VARIAXIS I-600 vertical 5-axis machining centre on our shop floor in Hengli, Dongguan.
Milling centers on the shop floor
CNC Machining Shop CNC machining factory exterior in Dongguan, China
6,800 m² facility in Hengli Town, Dongguan
Who is the legal company behind the brand?

In short, The marketing brand is operated by Dongguan Zhuohang Ltd (brand name Zhuohang Precision Machining Factory), registration number 91441900MA4UWT6X39, founded in 2005 and headquartered in Hengli Town, Dongguan, Guangdong, China.

How large is the factory and how many machines does it run?

The facility covers 6,800 m² and houses 100+ production machines — 3-axis (50+), 4-axis (20+), 5-axis (20+), 25+ lathes, and 7+ grinders — plus 20+ inspection instruments. Brands include Mazak, Brother, Citizen, Star, and Tsugami.

What certifications does the factory hold?

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.

How do I verify the certificates are real?

Ask for the certificate number, then confirm it with the certifying body — do not accept a logo or a PDF alone. A real factory sends its certificate numbers without hesitation.

What tolerances can the factory hold?

±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.

Can I visit the factory?

Yes. We welcome factory visits at our Hengli Town, Dongguan address. A visit lets you verify the machines, the inspection bench, and the certificates before you commit.

How do I contact the factory?

Email [email protected] or call +86 13126536955. Send your drawing and you will get a review and a quote, usually within one business day, plus certificate numbers on request.

Can I audit the factory remotely?

Yes. We offer a video walkthrough keyed to the machine list, a live call walking a specific machine, and the inspection bench on camera. A remote audit is weaker than a visit, but it catches the worst risks before you commit.

Standards referenced on this page

  • ISO 14001 — Environmental management systems — Requirements with guidance for use
  • ASTM A582/A582M-12 — Standard Specification for Free-Machining Stainless Steel Bars
  • IATF 16949:2016 — Automotive quality management system standard