Quality You Can Depend On
Every part inspected. Every shipment verified.
Our Quality Commitment
At WEIYE Machinery, we understand that a single failed engine part can shut down your entire operation. That's why every component we supply goes through a multi-stage quality control process — from raw material inspection to final packaging verification. We don't just sell parts. We deliver confidence that your machine will perform when it matters most.
Our 4-Stage Quality Control Process
Incoming Material Inspection
Raw materials and semi-finished goods are checked for composition, hardness, and dimensional accuracy.
In-Process Production Monitoring
During manufacturing, critical dimensions and tolerances are verified at each production stage.
Finished Product Inspection
Complete parts undergo comprehensive testing: dimensional measurement, surface finish, hardness testing, pressure testing.
Pre-Shipment Verification
Final visual inspection, packaging integrity check, and documentation review before dispatch.
What We Test
| Test Type | Applicable Parts |
|---|---|
| Dimensional Measurement | All parts |
| Hardness Testing (HRC/HB) | Cylinder liners, crankshafts, gears |
| Pressure Testing | Fuel pumps, cylinder heads |
| Surface Roughness (Ra) | Cylinder liners, bearing surfaces |
| Balance Testing | Crankshafts, turbo rotors |
| Electrical Testing | ECU/ECM modules, starters, alternators |
| Visual & Surface Defect | All parts |
Full Traceability & Reports
Every order ships with complete documentation so you know exactly what you're receiving:
- Machinery Test Report
- Material Certificate
- Outgoing Inspection Video
- Photos sent before dispatch
All reports available in PDF format.
1-Year Warranty — No Questions Asked
What’s Covered
- Material defects
- Dimensional non-conformance
- Premature failure
Warranty Service Includes
- Free replacement parts
- Remote technical support
- Freight cost sharing
How to Claim
- 1Contact with order number + photos
- 2Review within 48 hours
- 3Replacement shipped immediately
Need Test Reports? Contact Us.
Request machinery test reports, material certificates, or any quality documentation before placing your order.