| Quality Inspection Process |
| 1、Visual & Material Inspection |
| Inspection Steps |
Inspection Standards |
| 1.1 Surface Integrity |
Inspect 304 stainless steel surface for scratches, dents, oxidation spots; weld seams free from porosity or cracks |
| 1.2 Coating & Identification |
Coating thickness ≥50μm, logo position centered (tolerance ±2mm), compliant with bidder specifications |
| 1.3 Protection Grade |
IP65 certification for electrical cabinet; nozzle seal tested at 1.5x rated pressure for 30 mins |
| 2、Mechanical & Structural Test |
| Inspection Steps |
Inspection Standards |
| 2.1 Gantry Rail Precision |
Rail straightness ≤0.1mm/m, repeat positioning accuracy ±0.5mm (laser interferometer) |
| 2.2 Bearing Endurance Test |
72-hour no-load operation: bearing temperature rise ≤35°C, noise ≤75dB(A) (German bearing standard) |
| 2.3 High-Pressure Water System |
Water pressure adjustable 20-120Bar, flow stability ±3%, filtration ≤10μm |
| 3、Electrical & Safety Check |
| Inspection Steps |
Inspection Standards |
| 3.1 PLC Logic Verification |
Siemens/FX3U PLC logic verification: 3-5 mins/car, E-stop response ≤0.5s |
| 3.2 System Interface |
10.1" touchscreen with CN/EN switch, real-time fault code display (with location) |
| 3.3 Grounding & Insulation |
Grounding resistance ≤0.1Ω, insulation resistance ≥100MΩ (500V megger) |
| 4.Performance & Function Verification |
| Inspection Steps |
Inspection Standards |
| 4.1 Cleaning Efficacy Test |
Post-wash residue ≤5% on SAE J2450 standard mud (optical reflectivity test) |
| 4.2 Water Recycling Efficiency |
Water consumption ≤80L/wash, COD ≤50mg/L in wastewater (environmental report) |
| 4.3 IoT Functionality Check |
Remote management: fault alert delay ≤10s, data storage ≥365 days (Baima BMG800 gateway) |
| 5.Packaging & Documentation |
| Inspection Steps |
Inspection Standards |
| 5.1 Export Packaging Compliance |
Export wooden case: moisture ≤10%, fixing bolts ≥50N·m, ASTM D4169 vibration test |
| 5.2 Accompanying Documents |
Manuals (CN/EN), CE/UL certificates, spare parts list, QR code warranty card |
