Quality and Documentation
The inspection process and the documents that ship with your parts — stated precisely enough that you can verify each claim instead of taking it on trust. We do not list certifications we do not hold.
Xinyuanmu Precision controls quality through a documented inspection process rather than a certification claim. Incoming material is verified against its mill certificate, the first part of every new part number receives first-article inspection, in-process checks are set by the tolerance band, and dimensional results are recorded against the part number and lot. We do not yet hold ISO 9001, ISO 13485 or AS9100, and we say so plainly.
How quality is controlled through the order
- Incoming material verification Material is checked against its mill certificate for grade and, where provided, heat number and dimensions before release to production. Undocumented material is rejected, not passed along.
- First article inspection The first part of every new part number is measured against the drawing requirements. Production does not start until the FAI is reviewed, and where required, approved by the customer.
- In-process checks Sampling frequency is set by the tolerance band rather than by calendar time: a tight feature is checked more often than a loose one. Checks are recorded against the part number.
- Final inspection Dimensional verification, visual inspection for burrs and surface defects, and finish checks where specified. Results are recorded against the part number and lot.
- Nonconformance handling A nonconformance receives a root-cause analysis and corrective action, not only a replacement. Customer notification is triggered as soon as the issue is confirmed, before a replacement ships.
Documentation supplied
- Material certificate (mill test report) — available with shipments
- First-article inspection report with measured values
- Certificate of conformity for the operations we perform
- Dimensional inspection report per lot or per agreement
- Heat-number traceability record (on request)
Measurement honesty
Two things are worth stating explicitly, because they are where quality claims usually become marketing. First, a measuring machine's accuracy is not the accuracy of the part: fixturing, probe geometry and temperature each contribute more error than the machine specification. Second, inspection cannot create capability — if a process cannot hold a tolerance repeatably, the correct response is a drawing or process change, and we will say so at DFM rather than inspect around a known gap.
Certification status
We do not claim management-system certifications we do not hold. If your programme requires ISO 9001, ISO 13485 or AS9100 evidence today, we will tell you at the RFQ stage whether we can meet it through a certified partner for the specific operations, or whether you should place the work with a certified supplier.
Audits, records and certificates
Are certificates included in the price?
Material certificates and first-article inspection reports for the operations we perform are provided as part of the order. Third-party inspection such as SGS or TÜV, and any formal certification package, is quoted separately because it consumes engineering hours and, in some cases, requires a certified partner.
Can I visit or audit the facility?
Yes. Visits and remote walk-throughs can be arranged by appointment so that production can be scheduled to show the processes you want to see. If your programme requires a formal audit against a certified system, we will tell you honestly whether we can meet it today.
How long are quality records retained?
Inspection and material records are retained and retrievable by part number and lot. The retention period is confirmed in the quality agreement for each customer where one exists.
What is your on-time delivery rate?
We do not publish a delivery percentage we cannot substantiate. Quoted dates are built from machine time and material lead time, and any risk to the date is raised before the ship date rather than on it.
Need documentation for supplier qualification?
Send the qualification checklist and we will return the records we can actually issue — first-article reports, material certificates and dimensional data — in one package.