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Puwei's high-purity Zirconia (ZrO₂) Ceramic Balls are engineered for superior performance in extreme conditions. Combining exceptional mechanical strength, wear resistance, and electrical insulation, they are the optimal solution for industries where reliability, longevity, and precision are non-negotiable. Ideal for electronic packaging, high-frequency modules, and precision bearing systems.
Base Material: Zirconium Dioxide (ZrO₂) with 99.5% minimum purity. Key properties include a density of 5.9 g/cm³, hardness exceeding 1200 HV, compressive strength over 2000 MPa, and fracture toughness of 6-8 MPa·m¹/². The thermal expansion coefficient is 10.5×10⁻⁶/°C with a maximum operating temperature of 800°C.
These balls are completely non-magnetic and offer excellent electrical insulation, with resistivity greater than 10¹⁵ Ω·cm and dielectric strength of 15-20 kV/mm. Surface finish achieves Ra ≤ 0.012 μm, and sphericity meets Grade 5 or better per ISO 3290-1:2014.
Our fine-grained zirconia microstructure provides fracture toughness and mechanical strength far superior to steel or plastic, ensuring reliable operation in high-load and high-vibration environments common in power devices and integrated circuit manufacturing.
Resistant to chemicals, acids, and alkalis, these balls eliminate rust and degradation, extending component life in corrosive fluid handling systems and reducing total cost of ownership.
The non-magnetic and insulating properties make them essential for electrical isolation in sensitive microelectronics packaging, sensor packaging, and microwave components, preventing short circuits and signal interference.
Low thermal conductivity ensures consistent performance under thermal cycling. Their inert nature meets hygiene standards for medical, dental, and food processing applications.
Widely used in precision bearings, high-speed spindles, and linear guides. Their electrical insulation is critical for electronic packaging, high-frequency modules, and as insulation elements in integrated circuits and high-power microelectronic components.
Ideal for pumps, valves, and chemical reactors handling corrosive media. Also suited for medical devices, aerospace, and optoelectronics applications due to biocompatibility and stability.
Manufactured under ISO 9001:2015 certified processes, each ball undergoes precision forming, high-temperature sintering, diamond grinding, and 100% inspection. We comply with ISO 3290-1:2014 dimensional standards, ensuring sphericity Grade 5 or better and material purity of 99.5% ZrO₂ minimum.
Puwei offers tailored solutions to meet specific needs, including custom sizes, special surface treatments, and material modifications for enhanced thermal or electrical properties. Our engineering team provides expert consultation for integration into your microelectronics or sensor packaging applications, ensuring optimal performance.
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