Wuxi Special Ceramic Electrical Co.,Ltd
| Payment Terms | T/T, L/C, Western Union |
| Application | Vacuum Equipment Components |
| Delivery Time | 15-30 days after confirmation |
| Packaging Details | Export-grade cartons with foam inserts, palletized for sea or air freight |
| Feature | Low Outgassing |
| Porosity | Zero |
| Color | Ivory |
| Purity Grade | Ultra Pure, Vacuum Grade |
| Density | 3.85 g/cm3 |
| Shape | Feedthrough Insulator / Ring |
| Supply Ability | 100,000 Pieces per Month |
| Alumina Content | 99% Al2O3 |
| Max Use Temperature | 1700 deg C |
| Place of Origin | Jiangsu, China |
| Brand Name | Wuxi Special Ceramic |
| Certification | ISO 9001:2015 |
| Model Number | WS-AL-UP18 |
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Product Specification
| Payment Terms | T/T, L/C, Western Union | Application | Vacuum Equipment Components |
| Delivery Time | 15-30 days after confirmation | Packaging Details | Export-grade cartons with foam inserts, palletized for sea or air freight |
| Feature | Low Outgassing | Porosity | Zero |
| Color | Ivory | Purity Grade | Ultra Pure, Vacuum Grade |
| Density | 3.85 g/cm3 | Shape | Feedthrough Insulator / Ring |
| Supply Ability | 100,000 Pieces per Month | Alumina Content | 99% Al2O3 |
| Max Use Temperature | 1700 deg C | Place of Origin | Jiangsu, China |
| Brand Name | Wuxi Special Ceramic | Certification | ISO 9001:2015 |
| Model Number | WS-AL-UP18 | ||
| High Light | Ultra Pure Alumina Feedthrough ，Vacuum Ceramic Insulator Ring ，High Purity 99 Percent Al2O3 | ||
Vacuum systems are unforgiving of materials that outgas, adsorb moisture or crack under the stress of bakeout cycles. Our Ultra-Pure 99 Percent Al2O3 Ceramic Feedthrough Insulators are produced from high purity alumina sintered to zero porosity, giving vacuum equipment components a fully dense body that contains no trapped gas and releases nothing into the chamber even under hard vacuum and elevated temperature.
The ceramic combines high electrical resistivity with mechanical strength, so feedthrough insulators reliably separate high voltage conductors from grounded chamber walls while surviving the thermal cycling of regular vacuum bakeout. Precision ground sealing surfaces allow assembly with metal-to-ceramic brazing or compression seals, and every part is manufactured to the vacuum component drawing.
Key Features| Parameter | Specification |
|---|---|
| Alumina Content | 99% Al2O3 |
| Density | 3.85 g/cm³ |
| Open Porosity | 0% |
| Total Impurities | < 10000 ppm |
| Dielectric Strength | 15 kV/mm |
| Volume Resistivity at 20°C | > 10@SUP14@ Ωcm |
| Volume Resistivity at 500°C | > 10@SUP12@ Ωcm |
| Flexural Strength | 330 MPa |
| Maximum Use Temperature | 1700°C |
| Coefficient of Thermal Expansion | 7.6 ×10-6/°C |
| Surface Finish | Ground, Ra 0.4 µm |
| Metallization Option | Mo-Mn, Ready for Brazing |
| Color | Ivory |
| Available Forms | Ring, Disc, Tube, Custom |
| Application | Vacuum Equipment Components |
| Inspection | 100% Dimensional Verification |
These insulators serve vacuum equipment components in deposition systems, etch tools, ion implanters, electron beam welders, vacuum furnaces, particle accelerators, mass spectrometers and every class of vacuum apparatus requiring reliable electrical feedthroughs.
We support vacuum component manufacturers with matched insulator sets for multi-pin feedthroughs, and offer metallization and brazing coordination with certified partners to deliver complete subassemblies.
Packaging & Quality AssuranceInsulators are cleaned, wrapped in cleanroom film and packed in foam-lined boxes to protect ground sealing surfaces in transit.
Each part is supplied with dimensional and surface inspection records, with optional cleanliness testing for critical vacuum applications.
Company Details
Business Type:
Manufacturer,Importer,Exporter
Year Established:
2008
Total Annual:
>200000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our History Wuxi Special Ceramic Electrical as a leading special ceramic manufacturer,the factory is located in Chinese famous pottery town “YiXING” city about 200 km from Shanghai. From the beginning of businees ,has been dealing with export business for more than 10 years.... Our History Wuxi Special Ceramic Electrical as a leading special ceramic manufacturer,the factory is located in Chinese famous pottery town “YiXING” city about 200 km from Shanghai. From the beginning of businees ,has been dealing with export business for more than 10 years....
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