
With the advantages of smooth surface, even size, high hardness, wearable and stable, widely used as disperser, grinding media and filler materials in day, paint, ink and chemical industry.
No | Standard diameter((μm) | Sieve Size |
1 | 0.8-1.0 | 20-18 |
2 | 1.0-1.5 | 18-14 |
3 | 1.5-2.0 | 14-12 |
4 | 2.0-2.5 | 12-8 |
5 | 2.5-3.0 | 8-7 |
6 | 3.0-4.0 | 7-6 |
7 | 4.0-5.0 | 6-4 |
8 | 5.0-6.0 | 4-3 |
Category NO | Sieve Size | Standard diameter((μm) |
30# | 20-40 | 850-425 |
40# | 30-40 | 600-425 |
60# | 40-60 | 425-300 |
80# | 60-100 | 300-150 |
100# | 70-140 | 212-106 |
120# | 100-140 | 150-106 |
150# | 100-200 | 150-75 |
180# | 140-200 | 106-75 |
220# | 140-270 | 106-53 |
280# | 200-325 | 75-45 |
Special particle size can be customized
Technical parameter
Appearance: Colorless transparent sphere, smooth and round without obvious bubbles or impurities.
Rounding rate: Rounding rate>80%
Density: 2.4-2.6g/cm3
Refractive index: Nd ≥ 1.50
Composition: Composed of sodium calcium glass SiO2 content>68%
Compressive strength>1200N
Mohs hardness: 6-7





