The 7-Stage Zero-Defect Production Architecture
Every commercial kitchen unit produced in our Guangzhou facility passes through seven mandatory quality control gates before being authorized for wooden crate packaging and FCL container loading.
| Gate | Inspection Node | Test Criteria & Tooling | Tolerance Limit |
|---|---|---|---|
| Gate 1 | Raw Steel Metallurgical Assay | Optical Emission Spectrometry (OES) | Cr ≥ 18.0%, Ni ≥ 8.0% (SUS 304) |
| Gate 2 | CNC Punching & Laser Cutting | Trumpf 6kW Fiber Laser Center | ±0.1 mm dimensional accuracy |
| Gate 3 | Thermal Insulation Foaming | High-Pressure Cyclopentane Injection | 70mm wall thickness, 42 kg/m³ density |
| Gate 4 | Refrigeration Hermetic Circuit | Nitrogen Leak Test @ 28 bar | 0.00 ppm helium sniffer detection |
| Gate 5 | Electrical Safety Compliance | 1500V Dielectric Withstand Tester | Zero breakdown / leakage < 0.5mA |
| Gate 6 | 72-Hour Continuous Run-In | Full-Load Temperature Pull-Down | HACCP 90-min core pull-down verified |
| Gate 7 | Final Packaging & Crate Armor | Non-fumigation Plywood Palletizing | ISTA 3A transit drop test approved |