► Place of Origin: Jiangsu, China
► Material: 99% alumina Ceramic
► Density: 3.9g/cm³
► Max use temperature: 1600℃
► Contract Manufacturing: OEM Service Offered
Product Introduction
Our 99% alumina insulation ceramic plates represent the pinnacle of precision engineering for coating machinery applications. These high-purity Al₂O₃ ceramic components deliver exceptional thermal insulation, wear resistance, and dimensional stability in demanding industrial environments. Manufactured to exacting standards, they ensure reliable performance in precision coating processes where temperature control and material integrity are critical.
| Key Product Advantages | Industry Applications | ||
▸ Superior Thermal Insulation ▸ Exceptional Flatness & Parallelism ▸ High-Temperature Stability ▸ Excellent Wear Resistance ▸ Non-contaminating Surface ▸ Chemical Inertness | ▸ Precision Coating Machinery ▸ Semiconductor Processing ▸ Display Manufacturing ▸ Energy Storage ▸ Medical Device Coating |
Why Choose Our Ceramic Products?
✔ Factory Direct Pricing - Eliminate middleman markups
✔ ISO-Certified Manufacturing - Consistent quality assurance
✔ Rapid Prototyping - 2-3 week lead time for samples
✔ Technical Expertise - 30+ years in advanced ceramics
✔ Global Logistics - Reliable worldwide shipping
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Production Process
1. Grind and crush the raw materials to be slurry or powder.
2. se-different method to making the slurry or powder into semi-finished products.
3. Put the semi-finished products into the kiln for dewaxing and sintering.
4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.
5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery.

Company
![]() | Yixing Shengda Refractory Ceramic Co, Ltd. was established in Yixing City, China in 1995, witha production area of over 10,000㎡. lt is an enterprise specializing in the production of alumina ceramic,zirconia ceramic,slicon nitride, silicon carbide and other precision ceramic products. And we also produce ceramic band heaters, ceramic terminal block, cordierite and mullite ceramic parts an other ceramic products. |
Certifications

Technical Parameters
| Properties | Units | Cordierite Ceramic | Mullite Ceramic | 95%Alumina Ceramic | 99%Alumina Ceramic | Silicon Nitride | Zirconia Ceramic |
| Colour | Yellow | White | White | Light yellow | Black | White | |
| Density | g/cm3 | 1.9 | 2.6 | 3.6 | 3.8 | 3.2 | 6 |
| Flexural Strength | Mpa | 30 | 120 | 300 | 350 | 800 | 1100 |
| Compressive Strength | MPa | 350 | 500 | 2500 | 2800 | 2600 | 3000 |
| Modulus of Elasicity(20℃) | Gpa | 40 | 100 | 300 | 350 | 290 | 320 |
| Max Use Temperature | °C | 1200 | 1300 | 1400 | 1500 | 1300 | 1050 |
| Thermal Condutivity | W(m.K) | 1.3-1.8 | 2~6 | 20 | 30 | 25 | 3 |
| Thermal Expansion Cofficient | 10-6/°C | 2.5-3 | 2.5-3 | 7.5 | 8 | 3 | 10 |
| Thermal Shock Resistance | △T℃ | 300 | 150 | 140 | 150 | 600 | 250 |
| Dielectric Strength | KV/mm | - | - | 15 | 18 | 14 | 15 |
| Dielectric Constant | Er | 8 | 8 | 9 | 9.2 | 9 | 26 |

FAQ
Q: Do you have the products in stock?
A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.
Q: How do you pack the goods?
A: Our standard packaging is carton, we can customize it as per your requirement as well.
Q: How many days do you finish the sample?
A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)
Request A Quote Today
Whether is a product enquiry or technical help, please send messager here, our team will respond within 8 hours.
Subject : Precision Ceramic 99 Alumina Insulation Ceramic Plate Used In Coating Machine
If you have any questions or need help, feel free to contact with our team.
Phone
+86 15335210683
Location
Qianluo Village, Dingshu Town, Yixing City, Jiangsu Province, China
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