Alumina ceramic heater sleeve It is widely used in aerospace, automotive, electrical, electronic, power generation and other industries, such as industrial heating tubes, household appliances, electric heating rods and other equipment.
Extreme Temperature Resistance: Alumina ceramics can withstand operating temperatures up to 1600°C - 1750°C (2912°F - 3182°F), making them ideal for high-heat processes.
Excellent Electrical Insulation: Even at high temperatures, alumina remains an excellent electrical insulator. This is crucial for safely containing the internal heating element and preventing short circuits.
High Thermal Conductivity: For a ceramic, alumina has good thermal conductivity. This allows heat to transfer efficiently from the internal element to the outer surface of the sleeve and then to the object being heated, ensuring uniform temperature distribution.
High Mechanical Strength: It has high compressive strength, allowing it to maintain its shape and integrity under thermal expansion and mechanical load.
Chemical Inertness and Corrosion Resistance: Resists attack by fluxes, molten metals (like aluminum, zinc), and many corrosive gases, ensuring a long service life in harsh environments.
Electrical Insulation: It provides excellent electrical isolation, which is critical for safety and proper functioning.
Internal Construction
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T/TAlumina ceramic heater sleeve is a kind of component with excellent performance, which is widely used in the heating - related field
Alumina heater sleeves are used wherever precise, high-temperature, external heating is required.
Semiconductor Manufacturing: For heating reaction chambers, gas injectors, and diffusion tubes in CVD (Chemical Vapor Deposition) and diffusion furnaces.
Industrial Ovens and Furnaces: As custom heating elements for specific zones requiring intense, localized heat.
Materials Science Research: For heating samples in controlled atmosphere tubes or for crystal growth apparatus.
Glass-to-Metal Seal Manufacturing: To provide the precise, uniform heat needed to form a hermetic seal between glass and metal components.
Hot Runner Systems in Plastic Injection Molding: To keep the plastic channels molten (though lower-temperature ceramics are sometimes used here).
Analytical Instrumentation: In gas chromatographs and other lab equipment requiring high-temperature zones.
Technical Parameters
| Item | Unit | Zirconia ceramic | 99% alumina ceramic | 96% alumina ceramic | 95% alumina ceramic | Steatite ceramic | Mullite ceramic | Cordierite ceramic |
| Bulk density | g/cm3 | 6 | 3.8 | 3.7 | 3.6 | 2.8 | 2.2 | 2.3 |
| Water absorption | % | 0 | 0 | 0 | 0 | 0 | 12 | 12 |
| Thermal Conductivity | (w/m.k) | 10 | 19-30 | 16-28 | 14-24 | 2-3 | 2-6 | 1.3-1.8 |
| Resistance to thermal shock,Minimum | TK? | 70 | 150 | 140 | 140 | 80 | 150 | 300 |
| Withstand voltage,Minimum | KV | 15 | 20 | 18 | 18 | 20 | 25 | - |
| Flexural strength | Mpa | 1000 | 300 | 280 | 240 | 120 | 120 | 30 |
| Sintering temperature | ℃ | 1500 | 1670 | 1600 | 1600 | 1250 | 1250 | 1250 |
| Maximum working temperature | ℃ | 1200 | 1500 | 1200 | 1200 | 800 | 1000 | 1000 |
Application
Specifically used for high-temperature and high-voltage insulation parts, circuit substrates, high-temperature devices, etc. As the main representative of precision ceramic materials, it is widely used in industries such as semiconductors, petrochemicals, and electronics.
Advantages
1. we support OEM and ODM;
2. We have a professional R&D team and technical support;
3. We provide real-time logistics update information;
4. We support 24-hour online service;
5. We support T/T,L/c payment;
6. We have a professional QC team to check the quality before delivery.
Certificate
FAQ
1. How can you get quotation?
Please kindly send me your drawing with technic requirement and demand quantity.
If you don't have the drawing, please kindly courier samples to us. we will quote our best price in 24 hours.
2. How can you get samples?
We can supply free samples if we have them in stock. If we haven't produce the products, we can supply some free samples after getting tool fee. Please take note that the courier fee should be at destination.
3. What’s the lead-time for samples and batch orders?
It is 18days for supplying samples. It is around 25days for batch orders.
4. Can I visit you?
Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.
Alumina Ceramic Advantages 1). Strong acid resistance2). Strong insulation3). Strong adsorption4). High thermal insulation performance 5). Chemical stability6). High compressive strength
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Ceramic Advantages 1). Strong acid resistance2). Strong insulation3). Strong adsorption4). High thermal insulation performance 5). Chemical stability6). High compressive strength
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Alumina Ceramic Advantages 1). Strong acid resistance2). Strong insulation3). Strong adsorption4). High thermal insulation performance 5). Chemical stability6). High compressive strength
View More
Ceramic Advantages 1). Strong acid resistance2). Strong insulation3). Strong adsorption4). High thermal insulation performance 5). Chemical stability6). High compressive strength
View More
Ceramic Advantages 1). Strong acid resistance2). Strong insulation3). Strong adsorption4). High thermal insulation performance 5). Chemical stability6). High compressive strength
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Alumina ceramic pipes are widely used in industries where traditional metal/plastic pipes fail to withstand wear, corrosion, or high temperatures. Abrasive Slurry Transport: Mining & Mineral Processing: For transporting tailings, mineral concentrates, and sand. Coal-Fired Power Plants: For conveying fly ash and bottom ash slurries. Steel Industry: For dust and fume extraction systems. Corrosive Chemical Handling: Chemical Plants: As liners or full pipes for aggressive acids and alkalis. Laboratory Equipment: For high-purity or high-temperature gas and fluid delivery. High-Temperature Applications: Thermocouple Protection Tubes: To shield temperature sensors in furnaces and kilns. Industrial Furnaces: As radiant tubes or for transporting hot gases. Welding Torch Nozzles: For their electrical insulation and heat resistance. Electrical Applications: Insulating Bushings and Sleeves: Where a pipe must provide a barrier that is both mechanically strong and electrically insulating.
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2025-10-14
2025-10-14
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