Quality Assurance
Rigorous quality control at every step — from incoming material inspection to final product verification.
Quality is at the Core of Everything We Do
At Zhiwan Technology, quality is not just an afterthought — it's built into every step of our manufacturing process. From raw material verification to final inspection and packaging, we maintain strict control to ensure every part meets your exact specifications.
Our quality management system is aligned with ISO 9001 standards, and we continuously invest in advanced inspection equipment and employee training to raise the bar on quality.
Systematic quality processes
High precision capability
Advanced Quality Inspection Equipment
We invest in the latest metrology equipment to ensure accurate and reliable measurement of every critical dimension.
Coordinate Measuring Machine (CMM)
High-precision 3D measurement for complex geometric features and tolerances.
- Accuracy: ±2.5μm
- 3D scanning capability
- GD&T evaluation
Optical Measurement System
Non-contact optical inspection for high-precision small parts and surface analysis.
- Video measuring machine
- Surface roughness tester
- Hardness tester
Dimensional Gauges
Comprehensive hand tools and gauges for in-process and final inspection.
- Digital calipers & micrometers
- Pin gauges & thread gauges
- Height gauges
Our Quality Control Process
Quality is checked at every stage of production to catch issues early and ensure consistent results.
Incoming Material Inspection
All raw materials are verified against purchase specifications with material certificates and dimensional checks before entering production.
First Article Inspection (FAI)
The first piece from each setup is fully inspected and approved by quality control before production continues.
In-Process Quality Checks
Operators perform regular dimensional checks during production, with QC spot checks at defined intervals.
Final Inspection
100% inspection on critical dimensions, with full CMM inspection reports available on request before shipment.
Pre-Shipment Verification
Final review of quantity, packaging, labeling, and documentation to ensure everything matches order requirements.
Standards We Work To
We maintain processes aligned with international standards to serve clients across regulated industries.