Quality at Every Stage of Manufacturing
From raw materials to finished enclosures, SHIJIE guarantees strict inspection, precision control, and reliable performance.
Incoming Material Inspection
Every project begins with trusted raw materials.
- Material Certification – Each batch of stainless steel, aluminum, or galvanized steel is verified with supplier certificates.
- Dimensional Check – Raw sheets are measured to ensure thickness tolerance within ±0.1 mm.
- Surface Condition – Materials are inspected for scratches, oxidation, or defects.
- Chemical & Mechanical Properties – Random sampling tests ensure compliance with industry standards.
👉Only qualified materials enter our production floor.
In-Process Production Control
Precision is guaranteed at every stage of fabrication.
- Laser Cutting / CNC Punching – Accuracy controlled within ±0.1 mm
- Bending & Forming – Angle deviation ≤ ±0.5°, dimension tolerance within ±0.2 mm
- Welding – Consistent seams checked for penetration and strength
- Surface Finishing – Coating thickness maintained at 60–120 μm, corrosion resistance verified by salt spray tests
👉 Each workstation is equipped with calibrated measuring tools, ensuring continuous process validation.
Final Product Testing
Before delivery, every enclosure is thoroughly checked.
- Full Dimensional Inspection – Ensures product matches drawings and tolerances
- IP Protection Test – Waterproof and dustproof enclosures tested to IP55 / IP65 standards
- Load & Strength Test – Structural integrity verified for heavy-duty enclosures
- Surface Appearance – Visual inspection for uniform coating, color consistency, and logo clarity
👉 Precision parts can be controlled up to ±0.01 mm when required.
Quality Assurance
We build customer confidence with certified processes.
- ISO 9001 Certified – Standardized procedures across all production stages
- QC Documentation – Each order comes with full inspection reports upon request
- Continuous Improvement – Regular audits, equipment calibration, and staff training
👉 SHIJIE doesn’t just deliver enclosures — we deliver confidence.
