The alumina ceramic washer is sintered from high-purity alumina powder after formation, boasting excellent insulation and thermal conductivity, high hardness, exceptional wear resistance, and resilience to high temperatures, acids, and alkalis. It is primarily utilized for heat transfer and electrical isolation between power devices and heat sinks, providing outstanding thermal conductivity and insulation while enduring harsh environments containing high temperatures, corrosive substances, or dust. This enhances the safety and stability of equipment operation.
Brand:
ATCERAItem NO.:
AT-YHL-DP001Materials
Alumina CeramicShapes
Mechanical PartsApplications
Electronics and Electricity
1. The alumina ceramic spacer possesses high hardness, exceptional wear resistance, and a long service life.
2. It is non-conductive, offers superior insulation, withstands high breakdown voltages, and boasts excellent thermal conductivity, effectively transferring heat while preventing electrical leakage or short-circuit failures.
3. It is resilient to high temperatures and corrosion, adapting to demanding working environments.
The alumina ceramic washer is primarily utilized for heat transfer and electrical isolation between power devices and heat sinks, such as high-power semiconductor modules, heaters, high-frequency power switches, relays, communication modules, laser components, and more. It finds widespread application in industries like electronics, electrical engineering, chemical engineering, aerospace, and more.
We are committed to delivering optimal alumina washers and spacers tailored to your exact specifications. Our dedicated team ensures meticulous adherence to your instructions, striving to exceed customer expectations. Additionally, we offer the flexibility of custom sizes to accommodate your unique requirements.
Please provide drawings and parameter specifications if customization requirements needed.
| Alumina Ceramic Washer Insulating Ceramic Spacer | |||||
| Item NO. | Outer Diameter (mm) |
Inner Diameter (mm) |
Thickness (mm) |
Al2O3's Purity | Remarks |
| AT-YHL-DP001 | 1 | 7 | 1.6 | 96-99 | |
| AT-YHL-DP002 | 2 | 4 | 4 | 96-99 | |
| AT-YHL-DP003 | 3 | 6 | 1 | 96-99 | |
| AT-YHL-DP004 | 3 | 6 | 1.5 | 96-99 | |
| AT-YHL-DP005 | 3 | 7 | 2 | 96-99 | |
| AT-YHL-DP006 | 3.2 | 6 | 4 | 96-99 | |
| AT-YHL-DP007 | 3.2 | 7.8 | 3.8 | 96-99 | |
| AT-YHL-DP008 | 4 | 6 | 1 | 96-99 | |
| AT-YHL-DP009 | 4 | 7 | 2.5 | 96-99 | |
| AT-YHL-DP010 | 4 | 8 | 1.5 | 96-99 | |
| AT-YHL-DP011 | 4 | 8 | 4 | 96-99 | |
| AT-YHL-DP012 | 4 | 10 | 1.5 | 96-99 | |
| AT-YHL-DP013 | 4 | 10 | 2 | 96-99 | |
| AT-YHL-DP014 | 4 | 15 | 1 | 96-99 | |
| AT-YHL-DP015 | 4 | 30 | 1.5 | 96-99 | |
| AT-YHL-DP016 | 5.5 | 8 | 1.8 | 96-99 | |
| AT-YHL-DP017 | 5 | 9 | 2 | 96-99 | |
| AT-YHL-DP018 | 5 | 10 | 1.5 | 96-99 | |
| AT-YHL-DP019 | 5 | 12.5 | 4 | 96-99 | |
| AT-YHL-DP020 | 5.5 | 12.5 | 4 | 96-99 | |
| AT-YHL-DP021 | 5 | 30 | 6 | 96-99 | |
| AT-YHL-DP022 | 6 | 12 | 1.5 | 96-99 | |
| AT-YHL-DP023 | 6.5 | 14 | 3 | 96-99 | |
| AT-YHL-DP024 | 7 | 14 | 2.7 | 96-99 | |
| AT-YHL-DP025 | 8 | 12 | 4 | 96-99 | |
| AT-YHL-DP026 | 8 | 18 | 2 | 96-99 | |
| AT-YHL-DP027 | 8.5 | 14 | 0.8 | 96-99 | |
| AT-YHL-DP028 | 8.5 | 14 | 1.5 | 96-99 | |
| AT-YHL-DP029 | 8.5 | 16 | 3 | 96-99 | |
| AT-YHL-DP030 | 8.5 | 30 | 3 | 96-99 | |
| AT-YHL-DP031 | 9.2 | 14.5 | 2.5 | 96-99 | |
| AT-YHL-DP032 | 9 | 18 | 2 | 96-99 | |
| AT-YHL-DP033 | 9.9 | 18 | 3 | 96-99 | |
| AT-YHL-DP034 | 10 | 27 | 0.7 | 96-99 | |
| AT-YHL-DP035 | 10 | 27 | 5 | 96-99 | |
| AT-YHL-DP036 | 10 | 38 | 5 | 96-99 | |
| AT-YHL-DP037 | 12.5 | 25.5 | 4.5 | 96-99 | |
| AT-YHL-DP038 | 14.8 | 30 | 2 | 96-99 | |
| AT-YHL-DP039 | 15.3 | 27 | 3.5 | 96-99 | |
| AT-YHL-DP040 | 16 | 27 | 6 | 96-99 | |
| AT-YHL-DP041 | 16 | 38 | 0.8 | 96-99 | |
| AT-YHL-DP042 | 21 | 23 | 6 | 96-99 | |
| AT-YHL-DP043 | 23 | 39 | 3.5 | 96-99 | |
| AT-YHL-DP044 | 23 | 32 | 3 | 96-99 | |
| AT-YHL-DP045 | 31 | 50.5 | 3.5 | 96-99 | |
| AT-YHL-DP046 | 40 | 54 | 3.5 | 96-99 | |
| AT-YHL-DP047 | 7.2 | 12 | 3 | 96-99 | Suitable for new energy power battery cover plate |
| AT-YHL-DP048 | 14.1 | 20 | 3 | 96-99 | Suitable for new energy power battery cover plate |
| AT-YHL-DP049 | 14.15 | 21.2 | 2 | 96-99 | Suitable for new energy power battery cover plate |
| AT-YHL-DP050 | 17.15 | 24.2 | 3 | 96-99 | Suitable for new energy power battery cover plate |
| Material | 99% Alumina (AL2O3) |
| Thermal Conductivity | 24.0w/m.k |
| Electrical Insulation | ≤22.5KV, temperature resistance up to 1600℃ |
| Density | 3.83g/cm3 |
| Thermal Expansion Coefficient | 7*10-6/℃ |
| Bending Strength (at room temperature) | 310MPa |
| Compressive Strength (at room temperature) | 2200MPa |
| Hardness (Hv) | 1650 |
| Fracture Toughness | 4.2MPa*m1/2 |
*This chart illustrates the standard characteristics of the alumina materials commonly employed in the manufacturing of our alumina products and parts. Please be aware that the attributes of customized aluminum oxide products and parts may vary depending on the specific processes involved.
Alumina washers and spacers are carefully packaged in appropriate containers to avoid any potential damage.
1. According to your application scenario, analyze the needs, choose the appropriate material and processing plan.
2. Professional team, quick response, can provide solutions and quotations within 24 hours after confirming the demand.
3. Flexible business cooperation mechanism, support at least one piece of quantity customization.
4. Quickly provide samples and test reports to confirm that the product meets your needs.
5. Provide product use and maintenance suggestions to reduce your cost of use.
Although our primary focus is on advanced ceramic materials such as alumina, zirconia, silicon carbide, silicon nitride, aluminum nitride, and quartz ceramics, we are always exploring new materials and technologies. If you have a specific material requirement, please contact us, and we will do our best to fulfill your needs or find suitable partners.
Absolutely. Our technical team possesses profound knowledge of ceramic materials and extensive experience in product design. We are happy to provide you with material selection advice and product design support to ensure optimal performance for your products.
We do not have a fixed minimum order value requirement. We always focus on meeting our customers' needs, and we strive to provide quality service and products regardless of the order size.
In addition to ceramic products, we also provide a range of additional services, including but not limited to: customized ceramic processing services based on your needs, using blanks or semi-finished blanks produced by yourself; if you are interested in outsourced ceramic packaging and metallization services, please contact us for further discussion. We are always committed to providing you with a one-stop solution to meet your various needs.
Yes, we do. No matter where you are located globally, we can ensure the safe and timely delivery of your order.
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