Kaolin, a naturally occurring clay mineral, is a critical raw material in paint production due to its excellent opacity, whiteness, and chemical stability. To achieve the desired performance in paint formulations, kaolin must be processed to precise particle size distributions. This article explores advanced grinding technologies for kaolin refinement, with a focus on optimizing paint-grade quality.
| Parameter | Architectural Paint | Industrial Coatings |
|---|---|---|
| Particle Size (D50) | 0.8-2.0μm | 0.5-1.2μm |
| Brightness (ISO) | ≥88% | ≥90% |
| Oil Absorption | 35-50g/100g | 30-45g/100g |
Modern kaolin processing requires multi-stage grinding solutions combining:
Our SCM Ultrafine Mill series represents the pinnacle of kaolin refinement technology, achieving D97≤5μm particle sizes critical for high-gloss paints. The system’s vertical turbine classifier ensures:
| Model | Capacity (t/h) | Power (kW) | Final Fineness |
|---|---|---|---|
| SCM800 | 0.5-4.5 | 75 | D97≤5μm |
| SCM1000 | 1.0-8.5 | 132 | D97≤5μm |
| SCM1680 | 5.0-25 | 315 | D97≤5μm |
For large-scale paint production facilities, our MTW Series Trapezium Mill delivers 3-45 ton/hour throughput with exceptional wear resistance. Key features include:
The grinding process significantly impacts kaolin’s plate-like structure, which affects:
Our grinding systems incorporate:
Modern paint formulations demand kaolin with precisely controlled particle characteristics. Through advanced grinding technologies like our SCM Ultrafine Mill and MTW Trapezium Mill, producers can achieve:
For specific kaolin grinding solutions, our engineering team provides material testing and system customization services to optimize your paint production process.
