| | ZrO2 Zirconia Ceramic Balls | Si3N4 Silicon Nitride Ceramic Balls | SiC Silicon Carbide Balls | Al2O3 Aluminum Oxide Ceramic Balls |
| Material | Zro2 | Si3N4 | SiC Silicon Carbide | Al2O3 Aluminum Oxide |
| Specifications | φ0.1mm-φ63.5mm | φ0.4mm-φ100mm | φ0.5mm-φ50mm | Ceramic grinding media |
| Hardness | HRC70-HRC73,HV:1100-1300 | HRC75-80,HV:1300-1600 | HRC85-90 HV: above 2100 | >92 Al2O3 |
| Density | 6g/cm3 | 3.2g/cm3 | 3.1g/cm3 | >3.60 |
| Performance | 1. High strength and high toughness, no broken beads under high-speed impact. | 1.59% lighter than steel balls, which means less centrifugal force and wears less grooves at high speeds and accelerations | Silicon carbide ceramic balls have stable performance, and silicon nitride has good overall performance. Compared with steel, its | 1. High wear-resisting: The alumina balls wear resisting is higher than the common ceramic balls. When it is working, the ball |
| 2. Good sphericity and smooth surface. | 2. The elastic modulus is 44% larger, which means less deformation under load. | mass is lighter than steel, its friction coefficient is smaller, its motion performance is better, its elastic modulus is 50% | will not pollute the grinded materials, so it can keep the purity and improve the stability of grinded materials especially the |
| 3. Ultra-low wear, wear resistance is 30-50 times that of glass beads, 5 times that of zirconium silicate beads, and 6-8 times | 3. Smaller friction coefficient. | larger than that of steel, its thermal expansion coefficient is smaller than 25% of that of steel, it can maintain high strength | ceramic glaze. |
| that of alumina beads. | 4. The linear expansion coefficient of silicon nitride ceramic ball is 3.2×10-6/K, which is almost 1/4 of bearing steel, and can | and hardness before 1000ºC under high temperature, and it is resistant to corrosion. No rust, non-magnetic, can work without oil | 2. High density: the high density, high hardness and the high grinding Characters save the grinding time, enlarge the smashing |
| 4. High density and high grinding efficiency. | endure high temperature. | lubrication. | room. So It can improve the grinding efficiency. |
| | 5.Excellent surface finish can be achieved, Ra can be 4~6. | | |
| | 6. Can endure high temperature, high hardness and strength up to 1050 ºC. | | |
| Application | Special bearings, pumps and valves that operate in aggressive environments, check valves, flow meters, measurement instruments. | Special bearings, high-speed bearings, under vacuum pumps, compressors, centrifugal pumps, shafts/mandril, recirculating balls, | Including Special bearings and pumps, electric switches and sensors, medical instruments. They are used in automotive, aviation | Ceramics, cements, paints, refractory, inorganic mineral powders and other materials to form. Special bearings, check valves, |
| They are used in the medical field (very pure material). Grinding and milling applications. | flow meters, measurement instruments. They are used in aerospace. | and aerospace, naval, petroleum, chemical and electronic industry. Spray nozzles, shot blast nozzles and cyclone components. | pumps and valves that operate in aggressive environments, petroleum pumps, flow meters, measurement instruments, medical devices. |
| Packing | Standard: 10kg or 20kg per carton, 1 ton per pallet or as customer required | OPP bag, Vacuum packing, Carton, drum, wooden case with foam; Custom packing | OPP bag, Vacuum bag, Custom packaging |
| Delivery time | Stock within a short time or 35 days. |
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