Quality Assurance
At Yonglihao Machinery, quality comes from a documented workflow, not just final checks. We support prototypes and production parts with controlled suppliers, clear inspection plans, and consistent records. Our ISO 9001:2015 certification backs our commitment to quality. We provide inspection documents based on your project needs.
Inspection Capabilities & Calibration
We use inspection tools that match customer needs and part complexity. All measuring tools are managed under a calibration plan. This supports traceability and reliable measurements.
Quality Control Workflow
We apply quality controls at each stage to stop problems from growing.
Requirement review (before production): We confirm drawings, tolerances, material, surface needs, critical dimensions, and documentation.
Incoming material verification: We check raw materials against your specifications. We maintain material traceability when you request it.
In-process inspection: We inspect critical features at set intervals. We adjust process settings if we detect any trends.
Final inspection: We check dimensions and visual quality against drawings before packing.
Packing & shipment verification: We check labels, protection, and part separation. This reduces transit damage and mix-ups.
Quality Reports
We provide inspection documents based on your order.
Report Type | What It Includes | Availability |
|---|---|---|
Visual Inspection | Appearance check for surface finish, burrs, scratches, and defects. | Included (by request) |
Dimensional Inspection | Measurement of specified dimensions with the right tools. | Included (by request) |
First Article Inspection (FAI) | First-piece verification before full production begins. | [Included / Additional] |
Material Certificate (MTC/COC) | Supplier material documents and traceability details. | Additional (if required) |
Comprehensive Quality Report | A summary of key inspections and quality checks for the order. | Additional (if required) |
Nonconformance Handling & Corrective Action
If parts do not meet the agreed specifications, we take structured action. Please report issues quickly after you receive the parts. Provide photos, measured data, and quantities so we can evaluate the issue fast.
Response approach:
Confirm the issue and contain affected parts.
Review drawings, specifications, and our inspection data.
Find the root cause and define corrective actions.
Offer rework, replacement, credit, or a refund based on what is feasible.
RMA / Claim Window:
Please notify us within 7 calendar days of receipt for visible damage or obvious defects.
For dimensional or functional issues, please notify us within 7 calendar days after your inspection.
We will provide an action plan within 7 business days after we get complete evidence.
Rework and Refund Policy
If parts do not meet the agreed specifications, we take structured action. Please report issues quickly after you receive the parts. Provide photos, measured data, and quantities so we can evaluate the issue fast.
Rework is available when:
- The part does not meet the agreed drawing or specification.
- The issue was caused by our manufacturing process.
- We confirm the defect by reviewing evidence or returned samples.
A refund or credit may be considered when:
- Rework or replacement is not possible in a reasonable time.
- The issue is confirmed to be our responsibility.
- We reach an agreement on the resolution method.
Notes: We make custom parts to order. Claims need objective evidence like photos and measurement records. Document any packaging damage when you receive it. Order terms define shipping responsibilities.
FAQs
Are you ISO 9001:2015 certified?
Yes. Yonglihao Machinery has an ISO 9001:2015 certified quality system. We can provide the certificate upon request.
What quality documents can you provide?
We can provide visual and dimensional inspection reports. First-article inspection (FAI) records are also available. Material certificates (MTC/COC) can be supplied based on your needs.
Do you provide CMM reports?
We can provide CMM reports [if available] for parts that need higher measurement confidence. Otherwise, we use gauges and methods matched to the tolerance.
How do you confirm critical tolerances (CTQ dimensions)?
We confirm CTQ dimensions during planning. We define the measurement method and acceptance criteria before production. This keeps results consistent.
How do you handle raw material traceability?
For projects needing traceability, we keep material documents and batch IDs aligned with your order. We can supply material certificates when available.
Are your measuring tools calibrated?
Yes. Our measuring tools are managed under a calibration plan to support traceable and reliable inspection results.
What is your quality control process during production?
We use a staged workflow. This includes requirement review, material verification, in-process checks, final inspection, and packing verification.
What if parts do not meet specifications?
If an issue is confirmed, we respond with containment and corrective action. Options include rework, replacement, credit, or a refund.
How soon should I report a quality issue?
Please report visible damage within 7 calendar days. For functional concerns, report within 7 calendar days after your inspection. Provide photos, data, and quantities for a faster response.
Can you support customer-specific inspection standards?
Yes. Send us your required checklist, sampling plan, or report template with your RFQ. We will align our inspection plan and documents before production.