- Contact: Felipe Iglesias
- Title: Business Development Director
- Languages: English, Portuguese, Spanish, French, and Chinese
- E-mail: [email protected]
- Tel / WhatsApp: +86 13126536955
- Address: — No. 8, Shuibian Songyuan Road, Hengli Town, Dongguan, Guangdong, China 523470
How do you schedule a factory audit?
Scheduling is a single email or call. Send your preferred dates and a short note on what you want to review — the floor, the metrology lab, the quality records, or a specific part program — to [email protected] or call +86 13126536955. The sales team works in English, Portuguese, Spanish, French, and Chinese, and Japanese, and pickup can be arranged from your hotel or the airport.
Give a day or two of notice so the right people are on hand — an engineer who can discuss your drawing and an inspector who can open the records. A factory that is open to a visit on short notice, and that puts the right people in the room, is signaling the kind of transparency you are there to verify in the first place.
What should you prepare before the visit?
The audit is most productive when you arrive with three things: a drawing or part sample that represents what you need, the eight-point supplier audit checklist, and the list of documents you want to see. Preparation turns a tour into a verification exercise — you are checking specific claims, not just looking at machines.
The drawing matters more than most buyers expect. Bring a print with at least one deliberately tight or awkward feature, and ask how the factory would fixture and measure it. The answer you get — a specific clamping plan and a named measuring instrument — is a faster signal of engineering depth than any page on a website.
What documents can you request in advance?
Most of the audit can start by email, before you travel. Request the three certificates (with certificate numbers), the equipment list, a CMM report, an SPC chart, and a first-article inspection format. When these arrive ahead of the visit, the on-site time is spent verifying the documents against the floor instead of asking for them for the first time.
Where is the factory, and how do you get there?
The facility is Dongguan Zhuohang Ltd, the legal entity behind the CNC Machining Precision brand, at No. 8, Shuibian Songyuan Road, Hengli Town, Dongguan, Guangdong, China 523470 (Chinese address: 广东省东莞市横沥镇水边松元路8号). The GPS coordinates are 23.048947, 113.990605. Hengli Town sits in Dongguan, reachable from Shenzhen Bao'an Airport or Guangzhou Baiyun Airport, and pickup can be arranged so you do not navigate the drive yourself.
What happens on audit day?
A structured audit runs in a fixed order: open with the certificates and equipment list, walk the floor along the process flow (incoming inspection, machining, in-process QC, finishing, final inspection), stop at the metrology lab and ask for a CMM report and an SPC chart, then trace one part back to its raw material. Close with the commercial questions — MOQ, lead time tier, and payment terms. The whole exercise fits in a morning and leaves you with a decision instead of an impression.
The order matters because it mirrors the part's own journey. If the floor flow does not match the documented process, or if a gate has no record, you have found a gap no certificate page will show you. Spend the most time at the two ends — incoming material inspection and the metrology lab — because those are where a supplier's real discipline, or its absence, becomes visible.
What should you do after the audit?
After the visit, compare what you saw against the eight-point checklist and note any gap between the documents and the floor. Then confirm the commercial terms in writing — MOQ, the lead time tier for your part, and payment — before the first production order. A factory that passes the audit is one you can place a pilot order with; the pilot, measured against a first-article report, is the final confirmation before volume.
How do you run a remote audit if you cannot travel?
Not every buyer can fly to Dongguan before the first order, and a remote audit is a practical alternative that still separates a real factory from a brochure. The format is a guided live video walk of the floor — from incoming inspection to machining to the metrology lab — with the camera following the process flow, not a marketing reel. During the call, ask to see the equipment list matched against the machines on screen, a CMM report and an SPC chart opened live, and one part traced back to its raw material in the system.
A supplier that shows the floor on a live call, with documents opened in real time, is giving you the next best thing to being there. One that offers only pre-recorded footage or declines the walk is telling you the same thing a quiet floor would tell you in person. Remote audits do not replace an on-site visit, but they catch the worst cases before you spend the airfare.
What should you confirm before the first order?
The audit ends in a set of written commitments, not a handshake. Before the first production order, confirm five things in writing: the material specification and mill certificate, the tolerance standard and the explicit callouts on tight features, the first-article inspection format, the lead time tier for your part, and the payment terms. With those five locked, the pilot order becomes a measurement exercise — the first article either passes the agreed report or it does not.
The pilot is the final gate. Order a small batch, measure it against the first-article report, and only then scale to volume. A supplier that welcomes a pilot and a measured first article is confident in its process; a supplier that pushes you straight to a large volume order is asking you to skip the step that protects you.
- Did the machines I saw match the equipment list I was sent?
- Did the metrology lab produce a CMM report on request?
- Could the team trace one part back to its raw material on the spot?
- Were the lead time and MOQ stated honestly, or hedged?
- Did the answers on the floor match the documents sent in advance?
What this shop actually runs
A buyer asking for capability evidence should get a specific answer. The facility behind this guide operates 100+ CNC machines across a 6,800 m2 plant 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). 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 bands held: ±0.003 mm on CNC milling, ±0.002 mm on CNC turning, ±0.002 mm on precision grinding and wire EDM. Capability indices: Ppk >= 1.67 initial on key characteristics; 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 - disclosed openly), ISO 14001:2015 (116024/B/0001/UK/En). Certificates are 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. Based in China, serving customers worldwide.
Contact: Felipe Iglesias, [email protected], +86 13126536955.
Schedule your factory visit
Email [email protected] or call +86 13126536955 to arrange a date — pickup can be arranged.
Frequently Asked Questions
How do I schedule a factory visit?
Email [email protected] or call +86 13126536955 with your preferred dates and what you want to review. Pickup can be arranged, and the sales team works in English, Portuguese, Spanish, French, and Chinese, and Japanese.
What is the factory address?
No. 8, Shuibian Songyuan Road, Hengli Town, Dongguan, Guangdong, China 523470. The Chinese address is 广东省东莞市横沥镇水边松元路8号, and the GPS coordinates are 23.048947, 113.990605.
What should I prepare before the audit?
Bring a drawing or part sample, the eight-point supplier audit checklist, and the list of documents you want to see — certificates, machine list, CMM reports, SPC charts, and traceability records.
What documents can I request in advance?
The three certificates, the equipment list, a CMM report, an SPC chart, and a first-article inspection format can be sent before your visit, so the on-site time is spent verifying rather than requesting.
Who is the contact for a factory visit?
Felipe Iglesias is the contact, reachable at [email protected] and +86 13126536955. He coordinates visits and answers audit questions directly, with the fastest response around 30 minutes.
What should I do after the audit?
Compare what you saw on the floor against the eight-point checklist, then confirm the commercial terms — MOQ, lead time tier, and payment — in writing before the first production order.
Can I do a remote audit before visiting?
Yes. A guided live video walk of the floor — from incoming inspection through machining to the metrology lab — can be arranged, with the equipment list, a CMM report, and an SPC chart opened live on the call.
What is the fastest way to get a response?
Email [email protected] or call +86 13126536955. Urgent requests are answered as quickly as possible, with the fastest response around 30 minutes, and the team works in English, Portuguese, Spanish, French, and Chinese, and Japanese.
How long does a factory audit usually take?
A structured audit — certificates, floor walk, metrology lab, traceability check, and commercial review — fits into a single morning. A deeper technical review of a specific part program takes longer, but the core checklist completes in a few hours.
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
