- Qingqingquan
- Shandong
- 20 days
- 300 units per month
IATF-compliant deionized water systems for auto painting. 15MΩ quality, compact 1.6m footprint, 100L/h output. Download technical specs now!
Automotive Paint Shop Deionized Water Systems - 2025 Technical Guide
Why Automotive Painting Needs 15MΩ Water
✔ Prevents fish eyes in paint finishes
✔ Eliminates mineral spots on car bodies
✔ Meets OEM standards for surface preparation
✔ Extends paint system life by 30-50%
Industry Fact: 92% of premium auto plants use deionized water (IATF 16949 compliant)
System Specifications
1. Basic Parameters
• Flow rate: ≥100L/h
• Power supply: 380V/220V 50Hz
• Footprint: 1.6m×0.7m×1.5m
• Weight capacity: 500kg/m²
2. Water Quality Requirements
| Parameter | Specification |
|---|---|
| Feed TDS | <200 ppm |
| Hardness | <75 mg/L |
| Temperature | 15-30°C |
| pH Range | 6-8 |
| Turbidity | ≤1 NTU |
7-Stage Purification Process
1. Raw Water Tank
• Function: Buffer storage
• Protection: Low-level pump cutoff
2. Multimedia Filter
• Media: Graded quartz sand
• Removes: Suspended solids >20μm
3. Activated Carbon Filter
• Chlorine removal: 99%+
• Capacity: 10,000+ gallons
4. Precision Filter
• Rating: 5μm absolute
• Purpose: RO membrane protection
5. RO System
• Recovery rate: 50-75%
• Output: ≤10 μS/cm
6. Mixed Bed Polishing
• Resin type: Nuclear-grade
• Final quality: ≥15MΩ·cm
7. Storage & Distribution
• Material: 304 stainless steel
• Protection: Nitrogen blanket
Key Components
| Component | Specification |
|---|---|
| High Pressure Pump | 1.5kW, 304SS |
| RO Membranes | 4040/8040 elements |
| Control System | PLC with touchscreen |
| Piping | Food-grade PVC/SS |
5 Competitive Advantages
✔ Compact design - Fits small paint booths
✔ Auto-flush system - Extends membrane life
✔ Dual voltage - 220V/380V compatible
✔ Remote monitoring - IoT ready
✔ Low energy - 1.85kW total consumption
Case Study: Reduced paint defects by 68% at BMW supplier
Installation Requirements
Site Preparation
• Floor: Level concrete
• Height: ≥3m clearance
• Drainage: Acid-resistant channels
• Ventilation: 5 air changes/hour
Utility Connections
• Water inlet: 1/2" NPT
• Drain: 1" PVC
• Power: Dedicated 30A circuit
Maintenance Protocol
✅ Daily: Check pressure gauges
✅ Weekly: Sanitize storage tank
✅ Monthly: Resin regeneration
✅ Quarterly: Membrane cleaning
✅ Annually: Full validation
Pro Tip: Monitor SDI weekly to prevent fouling
