Core Advantages Of Alumina Ceramic Ring
Extreme Environment Resistance
High temperature & creep resistance: Stable up to 1200°C, low thermal expansion (7.2×10⁻⁶/°C), no deformation at high temperature. Suitable for melting furnaces and sintering kiln components.
Full chemical inertness: Resists HCl, ВЧ (<5% F⁻), molten salt corrosion; service life >10× that of metal rings.
Precision Motion & Sealing
Ultra-low friction: Mirror-polished surface, friction coefficient <0.1, reduces energy consumption, suitable for high-speed bearings (>10,000rpm).
Zero-leak sealing: Flatness ±0.002mm, sealing contact >99%, pressure resistance ≥50MPa, ideal for ultra-high pressure pump & valve seals.
Multi‑functional Adaptability
Insulation & теплопроводность: Dielectric strength ≥20kV/mm, thermal conductivity 30W/m・K, suitable for semiconductor insulation rings and laser heat sinks.
Lightweight design: Density 3.9g/cm³, 1/3 the weight of stainless steel, reduces inertia load in high-speed equipment.
Сравнение производительности
| Item | Metal Ring | Ceramic Ring Solution |
| Максимальная температура | <800°С (окисление & деформация) | 1200°С (stable) |
| Wear Life | 6–12 months (lubrication required) | >5 годы (не требующий обслуживания) |
| Sealing Reliability | Leaks easily under high temp & pressure | Zero leakage, 50MPa pressure rating |
| 5-Year Total Cost | >¥8,000/year | ~¥1,500/year (81% cost reduction) |
Applications Of Alumina Ceramic Ring
- 🔌 Semiconductor Equipment
Insulation rings for semiconductor production equipment
- 💧 High-pressure Pump & Valve
Professional sealing rings for ultra-high pressure fluid systems
- ⚙️ High-speed Bearing
Wear-resistant components for high-speed rotating bearings
- 🔦 Laser Equipment
High-efficiency heat sinks for laser industrial devices
- 🔥 High-temperature Furnace
Transmission parts for sintering & melting furnaces
- 🧪 Chemical & New Energy
Corrosion-resistant parts for chemical and new energy equipment
JiFeng Ceramics Custom Service
- Custom Dimensions & ShapesWe tailor dimensions, shapes and thicknesses according to your on-site demands.
- Drawing Customization & Sample TestingFull support for OEM & ODM, we provide samples for confirmation before mass production.
- Multiple Material Choices95% глинозем, 99% high-purity alumina and zirconia are available for selection.
- Fast Quotation & Reliable Lead TimeQuick response for quotes and strict control over production cycles.
Часто задаваемые вопросы
Can you customize according to our drawings?
Да, we support OEM/ODM and drawing customization.
What’s the lead time for samples?
7–10 days for samples; 15–25 days for mass production.
Is it suitable for HF and strong alkaline environments?
Да, ideal for low-concentration HF and high-temperature alkaline conditions.
Цзифэн Керамика













