Products Description
A ceramic cylinder is a cylindrical component made from advanced ceramic materials, such as alumina (aluminum oxide, Al₂O₃), known for their high hardness, wear resistance, and stability under extreme conditions. Alumina, or aluminium oxide, is a primary ceramic material in this category. It is typically manufactured through processes such as dry pressing, isostatic pressing, or extrusion, followed by sintering at high temperatures to produce sintered alumina components.

product details
| Product name | Ceramic Cylinder |
| Color | Customized according to the client's requirements |
| size | Customized according to the client's requirements |
| Packaging | Carton /Pallet/Wooden case (According to client requirement ) |
| Delivery time | Standard Product-Within 3 days |
| Items Design | According to the client's drawing or samples |
| Features | Good quality, low price, Multiple factories, deliver to you based on the one closest to your location |
| Application | Industrial Ceramics |
| Certificate | ISO, CE |
Products Performance
- Excellent mechanical strength and hardness, characteristic of high-strength ceramics like alumina-based ceramics.
- High resistance to wear, corrosion, and high temperatures.
- Good electrical insulation properties and low thermal expansion.
- Superior chemical stability, being resistant to acids and alkalis.
- Properties of alumina ceramics can be tailored; for instance, porous alumina ceramics offer controlled alumina porosity for filtration, while high-density alumina ceramic material provides maximum strength and barrier resistance.
- Alumina ceramic composition and purity (e.g., 95 alumina ceramic, alumina 99) directly influence its performance.
Products Applications
- Used as precision components in mechanical seals, bearings, and pumps, often made from aluminum oxide ceramic.
- Applied in high-temperature environments such as furnaces and thermal equipment (using high alumina ceramic tubes or plates).
- Utilized in chemical and medical industries for corrosion-resistant parts like porous alumina tubes for filtration.
- Serves as insulating components in electronic and electrical devices, such as alumina ceramic substrates.
- Commonly employed in aerospace, automotive, and semiconductor manufacturing.
- Specific products like alumina ceramic disks, alumina ceramic tiles, and alumina tubing (tubi in allumina) are used across these sectors for their durable alumina ceramics properties.
Products Parameters
| Number | Performance | Unit | Materials | |||||||
| 86-94.5 Porcelain | 95 Porcelain | 97 Porcelain | 99 Porcelain | 99 Porcelain | 995 Porcelain | 997 Porcelain | 999 Porcelain | |||
| Al2O3 | Al2O3 | Al2O3 | Al2O3 | Al2O3 | Al2O3 | Al2O3 | Al2O3 | |||
| 1 | Density | g/cm3 | 3.4-3.7 | 3.7 | 3.8~3.85 | 3.85 | 3.9 | 3.9 | 3.92 | 3.98 |
| 2 | Flexural strength | MPa | 250-330 | 304 | 320 | 340 | 450 | 370 | 400 | 550-600 |
| 3 | Fracture toughness | MPa·m1/2 | 3.8 | 4 | 4.5 | 5.6-6 | 6.2 | 5.6-6 | 5.6-6 | 2.8-4.5 |
| 4 | Dielectric constant | εr(20℃,1MHz) | 8.5-9.0 | 9.0 | 9.2 | 9.5 | 9.5 | 9.7 | 9.8 | 9.9 |
| 5 | Hardness | GPa | 9.7-12 | 12.8-15 | 15 | 15-16 | 16.3 | 16.3-18 | ||
| Hardness | HRC | 65.8-72 | 73-79 | 79 | 79-80 | 81 | 81-83 | |||
| 6 | Volume resistivity | Ω·cm(20℃) | 10 13 | 10 13 | 10 14 | 10 14 | 10 14 | 10 14 | 10 14 | 10 14 |
| 7 | Elastic modulus | GPa | 250-300 | 320 | 350 | 330 | 350 | 380 | 380 | 400 |
| 8 | Coefficient of thermal expansion | ×10-6/k | 7-7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 5.4-8.4 | 6.4-8.9 |
| 9 | Compressive strength | MPa | 1850 | 1910 | 2100 | 2210 | 2500 | 2300 | 2300 | 2300 |
| 10 | Abrasions | g/cm2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| 11 | Thermal conductivity | W/m×k(20℃) | 15-20 | 20 | 24~27 | 34 | 38 | 35 | 35 | 38.9 |
| 12 | Poisson's ratio | / | 0.2 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 |
| 13 | Insulation strength | kv/mm | 20 | 27 | 28 | 28 | 28 | 28 | 30 | 30 |
| 14 | Temperature | ℃ | 1440-1600 | 1520-1600 | 1650 | 1650 | 1650 | 1650 | 1700 | 1700 |
quality control
In strict adherence to the ISO 9001 Quality Management System, we implement full-process quality control to ensure the consistent delivery of high-quality products:
• 100% inspection of raw materials, guaranteeing quality from the source
• Utilization of advanced hot-pressing production lines for stable and reliable processes
• A comprehensive in-house testing system covering density, hardness, and microstructure analysis
• Availability of third-party authoritative certifications (including SGS, CE, ROHS, etc., provided upon request)
We remain committed to continuous improvement of our management system, providing customers with consistent and reliable product assurance.

why choose us
Alumina is a non-toxic, inert material. Our products are of high purity and contain only a small amount of harmless impurities, which can minimize safety hazards during your use. If you are engaged in experimental research and industrial production and need to store and manage corrosive chemicals, our products are your best choice.
We have our factory and specialize in producing advanced ceramics. We can provide you with high-quality Alumina cylinders.
Our Ceramic cylinder undergoes multiple precision processes during the production process, and we ensure that each process is subject to the most stringent inspection.
In terms of dimensional tolerance, we have professional technology and equipment, such as using SEM and XRD to test the finished advanced ceramics.
We have complete after-sales service. lf your product is damaged during transportation, we will reissue it for you. lf the product has serious quality problems, we will compensate you or provide the best solution.
Some of our products do not have a minimum order quantity limit, if you need an Alumina ceramic cylinder or other ceramics products, please contact us.
We eagerly anticipate your visit and the opportunity to serve you!
about us

A corner of the Storage and delivery area

A corner of the processing workshop

A corner of the grinding machine workshop

A corner of the grinding machine workshop

Technical research and development department

A corner of the grinding machine workshop

Wire cutting equipment

R&D department meeting

Cutting blank processing

Cutting blank processing

Experimental furnace

Experimental furnace

Centerless grinding production and processing

Large isostatic pressing equipment

Grinding wheel

Experimental furnace

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