Zhuohang Precision Machining FactoryMicro CNC Machining

Micro CNC Machining China

CMM measuring room at the Zhuohang quality lab in Dongguan.

Micro CNC Machining China — This page sets out what that claim has to be backed by — and the checks that. Tolerances: ±0.003 mm milling, ±0.002 mm turning — ISO 9001 / IATF 16949 verified.

Every supplier site claims to be a China. This page sets out what that claim has to be backed by, and the checks that cost you nothing to run before you commit.

Bottom line
  • Exports to 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 — based in China, serving customers worldwide.
  • Dongguan Zhuohang Ltd (Registration No. 91441900MA4UWT6X39), operating as Zhuohang Precision Machining Factory, established 2005.
  • What sourcing from China changes about cost, lead time, and risk — The risks that actually bite are not the ones usually listed: they are the revision that was sent to the wrong contact, the surface finish callout that means something different in another standard, and the freight and duty estimate made on an assumed weight.
  • Build-to-print: the plant cuts to your drawing and reports against it.

Why the word "China" carries no information on its own

The cost advantage on machined parts is real but it is not uniform — it comes from labour content, tooling cost, and the density of the supply chain around the plant, and it shrinks as the part becomes more automated or as the tolerances tighten and inspection labour rises.

The risks that actually bite are not the ones usually listed: they are the revision that was sent to the wrong contact, the surface finish callout that means something different in another standard, and the freight and duty estimate made on an assumed weight.

Total landed cost is manufacturing plus freight, duty, and the cost of your own time spent managing the distance. The last term is usually omitted from the comparison and is often the largest one on a first order.

What is the certification position?

ISO 9001:2015, IATF 16949:2016 (excluding clause 8.3 product design), and ISO 14001:2015. Each with a certificate number verifiable with the registrar.

What tolerance applies?

±0.003 mm on CNC milling, ±0.002 mm on CNC turning; ±0.002 mm where precision grinding or wire EDM is used, fixed for each feature at the quote.

Three things that change the price without changing the part

Two specification differences cause most avoidable cost when sourcing from China: the drawing standard (ISO versus ASME Y14.5 — one symbol can carry different meaning) and surface finish callouts expressed in different units or parameters. Confirming both in writing at enquiry stage costs nothing and removes a common source of dispute.

This is cheaper to settle at quote time than once parts already exist, because the changes are usually trivial on the drawing and significant on the machine.

Who is on the other side of the purchase order?

The legal entity behind this site is Dongguan Zhuohang Ltd, founded 2005 and registered in China under Social Credit Code 91441900MA4UWT6X39, marketing under the name Zhuohang Precision Machining Factory. Its registered and production address is No. 8, Shuibian Songyuan Road, Hengli Town, Dongguan, Guangdong, China 523470.

Use the National Enterprise Credit Information Publicity System and the 18-character code to verify a Chinese manufacturer. Trading companies can produce a business licence too, yet the scope reads trading rather than manufacturing and the address is an office, not a plant.

What capacity actually sits behind the claim?

Capacity is depth, not a headline machine. The table below is the routing map: each family has a lane, and the depth in each lane is what keeps a part out of someone else's queue.

Machine familyCountRepresentative modelsRole in the schedule
3-axis vertical machining50+ centresBrother SPEEDIO S500Z2N / S700Z2NPrismatic work at the lowest cost per part
4-axis machining20+ centresMazak VCE-430AL / VCE-570CLIndexed multi-face parts without re-fixturing
5-axis machining20+ centresMazak VARIAXIS i seriesSingle-setup complex geometry
5-axis mill-turn—Mazak INTEGREX i-H seriesTurned and milled features in one clamping
CNC turning / mill-turn25+ lathesMazak QT-COMPACT 200MSY LRound parts, live tooling
Swiss-type turning—Citizen Cincom A20 / Star SR-32JII / Tsugami B0205Long, slender parts at high L/D ratios
Precision grinding7+ grinders—Final tolerance on bearing seats and roundness-critical faces
Wire EDM—SodickSharp internal corners and hardened material

What to read out of this list: a part does not wait behind a single machine. Depth in the same family is what lets work re-route rather than queue, and it is what makes a prototype ramp to production on the same floor.

What should you check before trusting any micro CNC machining supplier?

Whether you buy from this plant or another, these checks separate a real floor from a brochure. None of them require a purchase order.

  • Which revision is being quoted, in writing? Ask for it in writing.
  • Whether the drawing standard is understood (ISO vs ASME Y14.5)? Ask for it in writing.
  • Whether the quote includes duty, freight, and packaging? Ask for it in writing.
  • How a nonconforming first article is handled and who pays? Ask for it in writing.

What happens between quote and first article?

Programming and offline verification, fixture design and build, material inward inspection, roughing, finishing, inspection, and the first-article report. Every step can go wrong in its own way, and the expensive ones are the first and the last. The manufacturability review is where cost is actually decided. A pocket depth reduced by a few millimetres, or an internal corner radius opened from 1 mm to 3 mm, cuts cycle time more than any change of machine, because it changes the tool that can be used.

What changes when you source from China

Sourcing micro CNC machining from China changes what you should verify, because the material and the certificate travel with the part across a border. The three things that matter most are the entity, the certificates and the floor - the same three as anywhere, but more important at a distance. This supplier is Dongguan Zhuohang Ltd, 6,800 m² in Hengli Town, Dongguan, with 100+ CNC machines, and its ISO 9001:2015, IATF 16949:2016 and ISO 14001:2015 numbers are published and verifiable.

Verifying without standing on the floor

You can verify a Chinese supplier without flying there. Ask for the certificate numbers and check them against the issuing body. Ask for a sample and have it measured on your own CMM - the tolerance claim either holds or it does not. Ask how the shop handles the export paperwork and the Incoterms, because a good part that arrives late or held at customs is not a good order. The service area covers 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, and MOQ is 1 piece. Contact Felipe Iglesias at [email protected] or +86 13126536955 for a sample and a quote together.

The evidence behind the numbers

Ask for proof and the answer is specific: Dongguan Zhuohang Ltd runs 100+ CNC machines on a 6,800 m² floor in Hengli Town, Dongguan, including the Mazak VARIAXIS I-600 five-axis, the INTEGREX I-250H S mill-turn, Brother SPEEDIO, and TSUGAMI, STAR and CITIZEN Swiss lathes. Inspection runs on a Hexagon CMM with the 10:1 gauge rule, and ISO 9001:2015, IATF 16949:2016 and ISO 14001:2015 are held by verifiable certificate number. Critical characteristics are tracked with Ppk 1.67 initial and Cpk 1.33 in production - a tolerance quoted here is a tolerance held.

Buyers across 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 are served from Dongguan with worldwide shipping. MOQ is 1 piece; lead times run about 3 / 7 / 30 days. Send the drawing and quantity to Felipe Iglesias at [email protected] or +86 13126536955 and the quote returns with the process spelled out.

Starting your order

The quickest route to a part is a model and a quantity. Send the STEP or IGES file with a 2D drawing that names the tolerances, datums, material grade and finish, plus the quantity and the lead time you need, and you get an itemised quote - material, setup, cycle time and inspection - not a round figure. No finished drawing? Send what you have and the questions that are blocking you; the goal is to begin, not to wait for a flawless package.

Email Felipe Iglesias at [email protected] or call +86 13126536955. MOQ is 1 piece, lead times run roughly 3 / 7 / 30 days, and shipping covers Europe, the Americas, Asia, Oceania and Africa, plus worldwide from Dongguan.

De-risking a first order

A trial order of a few pieces is the cheapest insurance you can buy — it proves the routing, the tolerance and the paper trail on a small batch before the volume order locks in. One floor, one quality system, one accountable party, whether the run is a single part or a full production lot, so what the trial confirms is what production repeats.

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). Chosen for 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). Chosen for 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). Chosen for 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). Chosen for shafts, bushings, flanges up to ±0.002 mm.
  • Wire EDM (5+) - Sodick AQ535L (550/350/300 mm travel, ±20° taper, 800 kg workpiece). Chosen for 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 a drawing and get a manufacturability read

Upload your model for a quote, or arrange a factory audit with [email protected] or +86 13126536955. Ask for Felipe Iglesias.

Frequently Asked Questions

Do you sign NDAs before reviewing drawings?

Yes. Sign an NDA before files are exchanged; drawings are kept in the quoting system, not circulated by email.

Is inspection documentation included in the quote?

It should be stated explicitly. A first-article report is a document someone has to produce, and whether it is a full dimensional report or a sample plan changes both the cost and what you receive.

What is the minimum order quantity for micro cnc machining?

There is no minimum. Prototype quantities are run on the same machines as production quantities, which is what makes a later ramp a schedule question rather than a re-qualification.

How are parts packed for export?

Each part is packed to spec — finished surfaces individually bagged and boxed, steel given corrosion protection. Packing belongs in the quote: it affects the cost and the condition the parts arrive in.

Can I audit the factory before placing an order?

Yes. On-site visits and video audits are welcome at No. 8, Shuibian Songyuan Road, Hengli Town, Dongguan, Guangdong, China 523470.

How quickly can you quote micro cnc machining?

Quotes are returned with a manufacturability read rather than a price alone — where a tolerance or a feature will drive cost, that is flagged at quote stage rather than after the first article. Turnaround depends on drawing completeness.

What happens if the first article does not conform?

In short, The nonconformance is documented and the corrective action is agreed before any further parts are made. Whether the replacement cost sits with the plant or the customer depends on where the deviation came from, which is why the revision and the drawing standard are confirmed in writing at the start.

Standards referenced on this page

  • ASTM A582/A582M-12 — Standard Specification for Free-Machining Stainless Steel Bars
  • ISO 9001 — Quality management systems — Requirements
  • ASTM E8/E8M-21 — Standard Test Methods for Tension Testing of Metallic Materials