Large & Ultra-Thin Alumina Ceramic Ring | Precision Machining of Al₂O₃ Rings
Custom large-diameter and ultra-thin alumina ceramic rings with high precision machining. Excellent flatness, strength, and thermal stability for advanced industrial applications.
main keyword: alumina ceramic ring
secondary keywords:
large alumina ceramic ring
ultra-thin ceramic ring
precision machined alumina ring
large diameter ceramic ring
custom ceramic ring manufacturer
Product Overview
The Large & Ultra-Thin Alumina Ceramic Ring is a high-precision component engineered for demanding industrial applications requiring large diameter and minimal thickness. Manufactured from high-purity alumina (Al₂O₃), these rings offer excellent mechanical strength, thermal stability, and dimensional accuracy, even under challenging design constraints.
Key Features
1. Large Diameter Capability
Supports manufacturing of oversized ceramic rings with stable structural integrity.
2. Ultra-Thin Design
Capable of producing thin-wall structures while maintaining strength and flatness.
3. High Precision Machining
Tight tolerances and surface finish for advanced applications.
4. Excellent Thermal Stability
Maintains performance under high-temperature environments.
5. High Wear & Corrosion Resistance
Suitable for harsh industrial and chemical conditions.
Applications
Semiconductor equipment (etching, deposition systems)
Vacuum systems and chambers
Precision sealing and insulating components
Display and electronics manufacturing equipment
Technical Advantages
High flatness control for large surfaces
Low deformation risk during processing
High purity material (≥99% Al₂O₃ available)
Stable performance in vacuum environments
Customization Options
We specialize in complex ceramic ring fabrication:
Outer diameter / inner diameter customization
Ultra-thin thickness control
Flatness and parallelism optimization
Surface finishing (lapping, polishing)
Special structural designs
Localized Title (US)
Large Ultra-Thin Alumina Ceramic Ring Manufacturer in USA | Precision Machining
Localized Content Snippet
We provide custom large and ultra-thin alumina ceramic rings to industrial clients across the United States. Our precision machining capabilities ensure high flatness, tight tolerances, and reliable performance in demanding applications such as semiconductor and vacuum systems.
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| Type | Unit | A‑100 | A‑200 | A‑300 | AZ‑100 |
| Material | - | Al₂O₃ 97% | Al₂O₃ 99.5% | Al₂O₃ 99.7% | Al₂O₃‑ZrO₂ |
| Colour | - | White ivory | White | Ivory White | White |
| Density | g/cm³ | 3.75 | 3.9 | 3.92 | 4.2 |
| Flexural Strength | MPa | 280 | 320 | 370 | 480 |
| Compressive Strength | MPa | 2250 | 2300 | 2450 | 2700 |
| Modules of Elasticity | GPa | 330 | 370 | 380 | 350 |
| Fracture Toughness | MPa·m^½ | 3 | 4 | 4.5 | 5.5 |
| Poisson's Ratio | — | 0.23 | 0.22 | 0.22 | 0.24 |
| Hardness | HRA | 90 | 91 | 91 | 91 |
| Vickers Hardness | HV1 | 1450 | 1550 | 1600 | 1600 |
| Thermal Expansion | 10⁻⁶K⁻¹ | 7.1 | 6.8 | 6.8 | 9.2 |
| Thermal Conductivity | W/m·K | 25 | 32 | 32 | 8 |
| Thermal Shock | ΔT·℃ | 200 | 220 | 220 | 470 |
| Max Use Temp(Oxidizing) | ℃ | 1200 | 1400 | 1650 | 1000 |
| Max Use Temp(Reducing) | ℃ | 1200 | 1400 | 1700 | 1000 |
| Volume Resistivity (20℃) | Ω·cm | 10¹⁴ | 10¹⁵ | 10¹⁵ | 10¹⁴ |
| Dielectric Strength | kV/mm | 16 | 20 | 22 | 16.5 |
| Dielectric Constant(1MHz) | - | 11.5 | 11 | 10 | 11 |
| Dielectric Loss (tanδ) | 1MHz | 3×10⁻³ | 1×10⁻³ | 1×10⁻³ | 2×10⁻² |
