- 6,800 m² across two buildings in Hengli Town, Dongguan, production, inspection, and engineering under one roof.
- ISO 9001:2015 / IATF 16949:2016 / ISO 14001:2015. certificate numbers published and verifiable.
- What sourcing from China changes about cost, lead time, and risk — The dangers that matter are not the obvious ones: 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: we machine to your drawing and report back to it.
What does "China" actually commit a supplier to?
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 dangers that matter are not the obvious ones: 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.
Who is on the other side of the purchase order?
Legally this is Dongguan Zhuohang Ltd, established 2005, Social Credit Code 91441900MA4UWT6X39, operating under the name Zhuohang Precision Machining Factory from No. 8, Shuibian Songyuan Road, Hengli Town, Dongguan, Guangdong, China 523470.
The 18-character code, checked against the National Enterprise Credit Information Publicity System, confirms a real manufacturer. A trading company may hold a business licence as well, but its scope is trading, not manufacturing, and its address is an office rather than a plant.
How the production floor is organised
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 family | Count | Representative models | Role in the schedule |
|---|---|---|---|
| 3-axis vertical machining | 50+ centres | Brother SPEEDIO S500Z2N / S700Z2N | Prismatic work at the lowest cost per part |
| 4-axis machining | 20+ centres | Mazak VCE-430AL / VCE-570CL | Indexed multi-face parts without re-fixturing |
| 5-axis machining | 20+ centres | Mazak VARIAXIS i series | Single-setup complex geometry |
| 5-axis mill-turn | — | Mazak INTEGREX i-H series | Turned and milled features in one clamping |
| CNC turning / mill-turn | 25+ lathes | Mazak QT-COMPACT 200MSY L | Round parts, live tooling |
| Swiss-type turning | — | Citizen Cincom A20 / Star SR-32JII / Tsugami B0205 | Long, slender parts at high L/D ratios |
| Precision grinding | 7+ grinders | — | Final tolerance on bearing seats and roundness-critical faces |
| Wire EDM | — | Sodick | Sharp 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 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, set feature by feature when we quote.
What design decisions move the cost on CNC lathe machining?
Two specification differences cause most avoidable cost when sourcing from China: the drawing standard (ISO versus ASME Y14.5: a single symbol is not interpreted identically) 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 worth raising at quote stage rather than after the first article, because the changes are usually trivial on the drawing and significant on the machine.
Four checks to run on any CNC lathe machining quote
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 CNC lathe 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.
How to verify the claim in one email
The fastest way to separate a real floor from a brochure is to ask for the machine list and the certificate numbers - and this facility answers in one email. Dongguan Zhuohang Ltd operates 100+ CNC machines across 6,800 m² in Hengli Town, Dongguan: Mazak VARIAXIS I-600 five-axis, INTEGREX I-250H S mill-turn, Brother SPEEDIO, and TSUGAMI, STAR and CITIZEN Swiss lathes. Inspection is on a Hexagon CMM with the 10:1 gauge rule, certification is to ISO 9001:2015, IATF 16949:2016 and ISO 14001:2015, and critical characteristics run at Ppk 1.67 initial and Cpk 1.33 in production.
Worldwide buyers across Europe, the Americas, Asia, Oceania and Africa are supplied from Dongguan. MOQ is 1 piece, lead times run roughly 3 / 7 / 30 days, and the quote from Felipe Iglesias ([email protected], +86 13126536955) comes back with the routing and the capability evidence together.
Take the next step
One drawing and one quantity is the whole hand-off. Send a STEP or IGES model and a 2D drawing with the tolerances, datums, material grade and finish, state the quantity and lead time, and the reply is an itemised quote - material, setup, cycle time, inspection - rather than a round number. If the drawing is incomplete, send what you have and the open questions; the point is to open the conversation, not to wait for a perfect package.
Contact Felipe Iglesias at [email protected] or +86 13126536955. MOQ is 1 piece, lead times run about 3 / 7 / 30 days, and 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, shipped worldwide from Dongguan.
De-risking a first order
Start with a handful of parts to confirm the routing and the tolerance, then scale. The same machines, the same inspection bench and the same certificate numbers apply to a single piece and a production run alike, so a small first batch is the proof that a large one will hold the same numbers.
Aluminium 6061-T6 is the fastest, most economical metal to machine on this floor, so an aluminium part in a standard finish is usually the quickest to quote and ship; stainless, titanium and Inconel each add time and cost for their properties.
What this shop actually runs
Capability evidence should come as specifics, not slogans. Behind this guide is a 6,800 m2 plant in Dongguan, China running 100+ CNC machines 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). Intended 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). Intended 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). Intended 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). Intended for shafts, bushings, flanges up to ±0.002 mm.
- Wire EDM (5+) - Sodick AQ535L (550/350/300 mm travel, ±20° taper, 800 kg workpiece). Intended 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: ±0.003 mm CNC milling / ±0.002 mm CNC turning / ±0.002 mm grinding and wire EDM. Capability: Ppk >= 1.67 initial on key characteristics, Cpk >= 1.33 ongoing.
Certificates: ISO 9001:2015 (116024/A/0001/UK/En), IATF 16949:2016 (131941/A/0001/SM/En, with design clause 8.3 excluded, stated openly) and ISO 14001:2015 (116024/B/0001/UK/En), issued to Dongguan Zhuohang Ltd, registration 91441900MA4UWT6X39, founded 2005.
Where we ship: 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 — plus other countries and regions worldwide, shipped from our base in Dongguan, China.
Contact: Felipe Iglesias, [email protected], +86 13126536955.
Get a quote with the cost drivers named
Send your drawing to [email protected] or call +86 13126536955. We will tell you which tolerance or setup is driving the number, not just the number.
Frequently Asked Questions
What materials do you machine?
Aluminum, stainless steel, titanium, brass, copper, and Inconel for metals; PEEK and Delrin (POM) for plastics. Material certificates are verified on incoming stock.
What is the minimum order quantity for cnc lathe 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 quickly can you quote cnc lathe 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.
Can you work to ASME Y14.5 as well as ISO?
Yes. Both geometric dimensioning conventions are used. The important thing is that the drawing states which one applies, because the same symbol can mean different things under the two standards.
Do you hold stock or consignment for repeat orders?
Repeat orders can run against a forecast so stock and, where the part warrants it, dedicated fixturing are held ready. This is a commercial arrangement, not a standard term, so raise it at the second order rather than the first.
Is your IATF 16949 certificate valid for design work?
No. The certificate excludes clause 8.3 (product design). The plant is certified to manufacture to your design and to run the associated process controls, not to originate product design.
What files do you need for a quote?
In short, A 3D model (STEP or IGES) with a 2D drawing carrying the tolerances, surface finish callouts, material spec and any inspection or certification requirements. The drawing defines the contract — the model alone usually leaves the tolerance scheme unspecified.
Continue reading: 3 Axis CNC Lathe Machining · 4 Axis CNC Lathe Machining · 5 Axis CNC Lathe Machining
Standards referenced on this page
- ASTM B211/B211M-19 — Standard Specification for Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and Wire
- ASTM A582/A582M-12 — Standard Specification for Free-Machining Stainless Steel Bars
- ISO 9001 — Quality management systems — Requirements