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HaoRui
custom01001
99 Alumina Ceramic Custom Finishing
This alumina ceramic fork arm is designed for precision semiconductor wafer transfer applications where dimensional accuracy, cleanliness, and wear resistance are critical.
Manufactured from high-purity Al2O3 ceramics, the component combines:
High mechanical strength
Excellent hardness
Superior electrical insulation
Thermal shock resistance
Chemical stability
Precision CNC machining and fine grinding processes ensure excellent flatness, tight tolerances, and smooth surface quality.
Tolerance capability: ±0.01mm
Fine polished surface
Low friction contact
Reduced particle generation
Stable performance in high-cycle automation systems
Customized dimensions
Multi-slot designs
Vacuum structures
Complex precision ceramic assemblies
Semiconductor equipment compatible structures
Applications include semiconductor wafer handling robots, transfer arms, automation systems, and precision industrial ceramic assemblies.
Properties of Alumina material (Al2O3)
| Property | Item | 95% Al2O3 | 99% Al2O3 | 99.8%Al2O3 | Unit |
| Mechanical Characteristics | Color | White | light yellow | Ivory | |
| Bulk Density | 3.7 | 3.85 | 3.93 | g/cm3 | |
| Water Absorption | 0 | 0 | 0 | % | |
| Bending Strength | 300 | 310 | 370 | MPa | |
| Compressive Trength | 2,300 | 2,400 | 2500 | MPa | |
| Elastic Modulus | 320 | 340 | 390 | GPa | |
| Fracture Toughness | 3~4 | 3~4 | 4 | MPa m1/2 | |
| Weber Coefficient | 12 | 12 | 12 | m | |
| Vickers Hardness | 1,400 | 1,600 | 1850 | HV 0.5 | |
| Thermal Characterics | Coefficient of Line Thermal Expansion | 7~8 | 7~8 | 7~8 | 10-6 K-1 |
| Thermal Conductivity | 20 | 29 | 32 | W/mK | |
| Thermal Shock Resistance (Put in Water) | 250 | 200 | 280 | ΔT °C | |
| Max Working Temperature | 1,500 | 1,600 | 1700 | °C | |
| Electrical Characteristics | Volume Resistance At 20°C | >1014 | >1014 | >1014 | Ωcm |
| Dielectric Strength | 15×106 | 15×106 | 15×106 | V/m | |
| Dielectric Constant | 9 | 10 | 10 | εr | |
| One MHZ Dielectric Loss Angle at 20°C | 0.0004 | 0.0002 | 0.0001 | tanδ | |
| Chemical Characteristics | Nitric Acid (60%) 90°C | 0.1 | 0.1 | 0.05 | 24H WT Loss mg/cm2 |
| Sulphuric Acid (95%) 95°C | 0.3 | 0.34 | 0.22 | ||
| Caustic Soda (30%) 80°C | 0.9 | 0.95 | 0.04 |
Company overview
Shenzhen Haorui Industrial Technology Co., Ltd. is a professional manufacturer of advanced engineering ceramic components, with 19 years of industry experience since its establishment in June 2006.
Haorui specializes in the precision machining of zirconia ceramic and alumina ceramic structural parts, serving demanding applications in the semiconductor and optical fiber communication industries. With in-house CNC machining, precision grinding, fine polishing and strict inspection processes, we are capable of producing high-precision ceramic components with tight tolerances and stable dimensional accuracy. Our engineering ceramic products are widely used in semiconductor equipment, fiber optic fusion splicers, optical fiber alignment systems, microelectronic devices and precision optoelectronic equipment, where material purity, machining accuracy and long-term stability are critical. Haorui supports OEM & ODM customization, accepting CAD / STEP / PDF drawings, and provides reliable solutions from prototype development to mass production. Backed by a complete quality management system and experienced technical team, we deliver zirconia ceramic structural components with excellent wear resistance, low particle generation and high consistency, suitable for cleanroom and precision environments. Over the past 19 years, Haorui has served more than 1,000 customers worldwide and maintained close cooperation with over 30 universities and research institutions, earning a strong reputation for precision, reliability and professional service in the advanced ceramics industry.
