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| Diameter: | 3, 6, 13, 19, 25, 38, 50mm |
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Manufactured via dry pressing and high-temperature sintering, our alumina ceramic balls (92%/95%/99% Al2O3) deliver unmatched performance in extreme conditions. Ideal for catalyst beds, petrochemical reactors, and fine powder grinding, they combine thermal resilience with chemical inertness.
| Property | Value Range |
| Alumina Content | 92%, 95%, 99% |
| Bulk Density | 3.6-3.9 g/cm³ (grade-dependent) |
| Water Absorption | ≤0.01% |
| Compressive Strength | ≥1500 N (10mm diameter) |
| Max Service Temperature | 1650°C |
| Chemical Resistanc | Excellent (acids/alkalis) |
√ Thermal Stability - Withstands 1600°C continuous operation (1650°C peak).
√ Mechanical Durability - High compressive strength (≥1500 N) resists cracking.
√ Corrosion Proof - Immune to acidic/alkaline degradation (≤0.01% water absorption).
√ Custom Sizing - Tailored diameters from 1mm to 100mm for diverse applications.
| Industry | Primary Uses | Benefits |
| Petrochemical | Reactors, heat exchangers, pipelines (grinding/support media) | Resists sulfur compounds, acidic/alkaline corrosion, and high-pressure wear |
| Environmental | Wastewater/gas treatment (catalyst carriers, filter media) | Enhances catalytic efficiency; durable in harsh chemical environments |
| Ceramics | Raw material for advanced ceramics (e.g., precision components) | Superior hardness (Mohs 9) ensures longevity in abrasive processes |
| Electronics | Heat sinks, IC packaging, thermal management systems | High thermal conductivity (30-35 W/m·K) prevents overheating |
| Metallurgy | Refractory linings for furnaces, ladles, and kilns | Withstands molten metals/slag; reduces downtime |
| Mechanical | Wear-resistant parts (bearings, valves, pump components) | Low friction coefficient extends equipment lifespan |
| Chemical Catalysis | Catalyst supports (fixed-bed reactors) | Optimizes fluid flow, prevents catalyst agglomeration, and boosts yield |
TECHNICAL INDEX OF Alumina Ceramic Balls
| Name | Ceramic ball | 23-30%Al2O3 Ceramic ball | Medium alumina ceramic ball | High alumina ceramic ball | 99-Alumina ceramic ball |
| Al203+SiO2(%) | >93 | >92 | >93 | >94 | >99 |
| Al203(%) | 17-23 | 23-30 | 40-75 | 85-97 | 99 |
| Fe203(%) | <1 | <1 | <1 | <1 | 0.2 |
| Ca0(%) | <0.5 | <1.5 | <1.5 | <0.5 | 0.2 |
| MgO(%) | <0.5 | <1.5 | <0.5 | <0.5 | 0.1 |
| K2O+Na20(%) | <4 | <4 | <3.5 | <4 | >0.5 |
| TiO2 | <0.5 | ≤0.5 | <0.1 | <0.1 | 0.5 |
| Leachable Fe203 |
<0.1 | <0.1 | <0.005 | <0.001 | |
| water adsorption | <0.5% | <0.5% | <1 | <2 | 2-5 |
| grain density g/cm3 |
2.3-2.4 | 2.3-2.4 | 2.6-2.9 | 3.4 | 3.2-3.6 |
| operation temp(max).C | 980 | 980 | 1450 | 1580 | 1580 |
| Moh's hardness | >6.5 | >7 | >7 | >7.5 | >7.5 |
| φ6mm | >0.5 | >0.5 | >0.50 | >0.6 | >1 |
| φ25mm | >6.5 | >6.5 | >4.9 | >55 | >8 |
| φ38mm | >8.9 | >8.9 | >5.5 | >54 | >8 |
| φ50mm | >9 | >9.8 | >6.5 | >7.8 | >15 |
Name: Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.
Location: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China
Facility: 30-acre production base with advanced process equipment
Workforce: 300+ employees, including ~100 professional/technical personnel
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