QDJ-PROTOTYPE is an ISO 9001 certified manufacturing facility in Dongguan, China.
QDJ-PROTOTYPE operates under a rigorously implemented ISO 9001:2015 quality management system. Every part we ship — whether a single prototype or a production batch — goes through documented quality control checkpoints that meet international standards.
- Documented Processes: Every manufacturing step has a written SOP. No tribal knowledge, no shortcuts.
- Incoming Material Inspection: Raw materials verified against mill certificates before machining begins.
- In-Process QC: Critical dimensions checked at defined intervals during production — not just at the end.
- Final Inspection Reports: Full dimensional reports, surface finish data, and material certs included with every shipment.
- Continuous Improvement: Quarterly management reviews, CAPA (Corrective and Preventive Action) system, and supplier audits.
Our Quality Control Equipment
- CMM (Coordinate Measuring Machine) — ±0.002mm accuracy
- 2D Video Measuring System
- Surface Roughness Tester (Ra 0.4–6.3μm range)
- Hardness Testers (Rockwell, Vickers, Brinell)
- Digital Height Gauge & Micrometers (0.001mm resolution)
Why ISO 9001 Certified Manufacturing Matters for Your Project
When you work with an ISO 9001 certified manufacturing partner, you get more than a certificate. You get a factory where every operator follows documented procedures, every material batch is traceable, and every part ships with an inspection report. Our ISO 9001 certified manufacturing system means:
- No shortcuts on material grade — we verify every mill certificate
- No “tribal knowledge” — every process has a written SOP
- No surprises — you get the inspection data, not just the parts
Unlike many factories that treat ISO 9001 certified manufacturing as a paperwork exercise, QDJ integrates it into daily operations. From DFM review to final inspection, every checkpoint is documented. Learn about ISO 9001 standards on the official ISO website.
ISO 9001 Certified Manufacturing — Certifications & Compliance
Our ISO 9001:2015 certificate is issued by an accredited certification body and is renewed annually with surveillance audits. We also comply with RoHS, REACH, and can provide material traceability per your requirements.
Choosing an ISO 9001 certified manufacturing partner is the single most reliable way to verify a factory before sending your CAD files. At QDJ, our ISO 9001 certified manufacturing system is not just a wall certificate — it is how we deliver consistent quality across every order, from 1-piece prototype to low-volume production.
Choosing an ISO 9001 certified manufacturing partner is the single most reliable way to verify a factory before sending your CAD files. At QDJ, our ISO 9001 certified manufacturing system is not just a wall certificate — it is how we deliver consistent quality across every order.
nnNeed a copy of our certificate or have specific quality requirements? Contact us — we will send it within one business day.
ISO 9001 certified manufacturing means documented quality at every step. See also: Quality Control | Verify a CNC Factory | Our Case Studies
