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Wear Resistant Al2O3 Ball High Hardness Alumina Ceramic Grinding Balls Mirror Polished
| Place of Origin | Handan |
|---|---|
| Brand Name | Norce |
| Certification | ISO9001 |
| Minimum Order Quantity | 500 Pieces |
| Price | $0.05~$50 Per Piece |
| Packaging Details | PP Bags + Heavy Carton |
| Delivery Time | 5-10 Work Days |
| Payment Terms | T/T |
| Supply Ability | 50000 Pieces Per Week |
Product Details
| Sphericity | Less Than 1 Micron Deviation | Thermal Conductivity | Low Thermal Expansion Coefficient |
|---|---|---|---|
| Corrosion Resistance | Excellent Resistance To Chemicals And Corrosion | Diameter Tolerance | ±0.5 To ±5 Microns |
| Electrical Insulation | High Electrical Resistivity | Color | White, Off-white, Or Light Gray |
| Manufacturing Process | Isostatic Pressing, Sintering, Grinding, And Lapping | Density | 3.2 To 3.7 G/cm³ Depending On Material |
| Load Capacity | High Load Bearing Capability | Material | Silicon Nitride (Si3N4) / Zirconia (ZrO2) / Alumina (Al2O3) |
| Hardness | Above 1400 HV | Surface Finish | Mirror Polished Surface |
| Operating Temperature | Up To 1000°C (varies By Material) | Applications | Bearings, Valves, Medical Devices, Aerospace, Electronics |
| Highlight | Wear Resistant Al2O3 Ball,High Hardness Alumina Ceramic Grinding Balls,Alumina Ceramic Grinding Balls Mirror Polished |
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Product Description
Wear Resistant Alumina Balls 92% 99% Al₂O₃ Ceramic Beads for Fine Grinding
Alumina balls (Al₂O₃) are high‑performance sintered ceramic spheres available in multiple purity grades: 95%, 99% and 99.7%. Featuring high hardness, excellent wear resistance, superior chemical inertness and high‑temperature stability, these ceramic balls minimize metal contamination during processing. Widely used as grinding media for ball mills, catalyst support media, tower packing, precision bearing components and insulation parts. Custom sizes and precision grades G10‑G100 are available. Bulk supply & OEM service supported.
Alumina ball is premium alumina‑based ceramic grinding medium. With high alumina content, exceptional mechanical strength and corrosion resistance, it greatly reduces media wear and material pollution during milling. Suitable for wet and dry grinding processes. Various dimensions can be customized to satisfy diverse industrial milling needs.
Technical Specifications
| Material | Alumina Oxide (Al2O3) |
| Diameter Range | 1.0 mm – 200.0 mm; other sizes subject to production confirmation |
| Precision Standard | final grade to be confirmed according to application |
| Hardness | HV 2000 reference range |
| Density | Approx. 3.7 g/cm3 |
| Young’s Modulus | Approx. 300 GPa reference value |
| Strength Reference | Approx. 2800 MPa, depending on material grade and test method |
| Temperature Capability | Up to 1600°C under suitable non-impact and compatible service conditions; actual limit depends on application design |
| Magnetism | Non-magnetic |
| Electrical Property | Excellent electrical insulation |
| Corrosion Resistance | Excellent in most conditions; not recommended for sulfuric acid-containing solutions or high-concentration alkali without compatibility confirmation |
Key Characteristics & Benefits:
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Ultra-high Hardness & Wear Resistance: With Mohs hardness close to 9 grades, alumina balls resist abrasion and deformation during long-term cyclic operation, effectively reducing equipment wear and maintenance frequency.
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Excellent Electrical Insulation: As an ideal insulating ceramic material, it completely avoids current leakage and electric pitting damage, perfectly adapting to electronic and high-precision electrical equipment working conditions.
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Superior Chemical Inertness: Resistant to erosion from most weak acids, weak alkalis, organic solvents and aqueous solutions, no oxidation or deterioration occurs in conventional corrosive environments.
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High Temperature & Thermal Stability: Stable physical and chemical properties under continuous high-temperature working conditions, with outstanding thermal shock resistance to frequent temperature changes.
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High Precision & Low Friction: Strict sphericity and dimensional tolerance control, smooth polished surface reduces friction coefficient, ensuring stable high-speed operation.
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Zero Pollution & High Purity: No metal impurity precipitation, suitable for high-cleanliness production environments such as fine chemicals and electronic materials processing.
Common Applications:
Alumina ceramic balls cover diversified industrial fields with comprehensive performance and cost advantages, serving both precision functional components and industrial auxiliary materials:
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Precision Mechanical & Electrical Equipment: Used for insulating rolling bodies, precision instrument bearings, miniature valve core balls and positioning parts, providing stable insulation and low-friction operation.
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Chemical & Petrochemical Industry: Served as catalyst support media, tower packing balls and reactor protective materials, resisting medium corrosion and improving reaction stability.
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Grinding & Fine Processing: Ideal high-efficiency grinding media for ceramic glaze, pigment, ink, pharmaceutical powder and electronic material grinding, effectively improving grinding efficiency and product fineness without introducing impurity pollution.
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Environmental Protection & Water Treatment: Applied in filter bed support layers, gas adsorption and desulfurization systems, supporting efficient filtration and exhaust gas purification.
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New Energy & General Industrial Equipment: Wear-resistant and insulating components for automated equipment, high-temperature equipment and low-load high-stability operating systems.
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