High-purity alumina ceramic with 96%, 99%, 99.5% and 99.8% Al₂O₃ options. This alumina ceramic sintering plate can also be customized with ZTA reinforcement for high-wear or impact-prone areas, depending on the working conditions.
Excellent wear resistance, high hardness, high-temperature stability, chemical corrosion resistance, electrical insulation, low contamination risk, and good dimensional stability during repeated firing cycles. Custom sizes, thicknesses, holes, slots, grooves, chamfers, flatness control, grinding and polishing are available according to drawings or samples.
Widely used in sintering , powder metallurgy, electronic ceramic production, battery material firing, laboratory furnaces, industrial furnace fixtures, kiln furniture, and high-temperature support applications where thermal stability, wear resistance and low contamination are required.
Lead time depends on material grade, plate size, tolerance requirements, machining complexity, surface finish, and order quantity. For custom alumina ceramic sintering plates or setter plates, the delivery time will be confirmed after drawing review and technical evaluation.
CERAMPRO alumina ceramic sintering plates are designed for stable part support during high-temperature firing and sintering processes. Made from 96%, 99%, 99.5%, or 99.8% Al₂O₃ ceramic materials, these plates are commonly used as setter plates, support plates, and furnace fixture plates. They help maintain part positioning, reduce surface contamination, and improve support stability during repeated thermal cycles in ceramic, powder metallurgy, battery material, and electronic ceramic production.
This product is mainly manufactured from high-purity alumina ceramic, with different material grades selected according to working temperature, load, plate size, flatness requirements, and contamination sensitivity.
96% alumina is suitable for general furnace support and ceramic firing applications where cost and performance need to be balanced.
99% alumina is recommended for higher-temperature use, better density, lower porosity, and improved dimensional stability.
99.5% and 99.8% alumina can be considered for applications requiring lower contamination risk, cleaner contact surfaces, and more stable performance under repeated firing conditions.
For special working conditions involving higher impact or localized wear, ZTA reinforcement can also be evaluated after reviewing the drawing and application environment.
As an experienced alumina ceramic manufacturer, CERAMPRO can recommend a suitable material grade based on your actual furnace conditions and product requirements.
Alumina ceramic sintering plates are mainly used in production processes where parts need to be supported, separated, or positioned during high-temperature treatment. Compared with ordinary metal support plates, alumina ceramic offers better high-temperature resistance, chemical stability, and lower contamination risk.
Typical applications include:
Ceramic part firing and sintering support
Powder metallurgy part support during heat treatment
Battery powder and functional material firing
Electronic ceramic component production
Laboratory furnace support plates
Industrial kiln furniture and setter plate systems
Precision part support during repeated sintering cycles
Custom furnace fixtures for small-batch or OEM production
Alumina ceramic maintains good rigidity at high temperatures, helping reduce plate deformation and part movement during firing or sintering.
The dense ceramic surface helps reduce material absorption and residue buildup, which is important when the plate is used in direct contact with powders, green bodies, or precision ceramic parts.
The hard alumina surface is suitable for repeated loading, unloading, and contact with abrasive ceramic or powder materials.
For applications where part position or surface contact is important, CERAMPRO can provide grinding and flatness control according to drawing requirements.
These plates are designed for repeated heating and cooling cycles in furnaces, helping improve long-term use stability.
Holes, grooves, slots, chamfers, special shapes, and different thicknesses can be customized according to furnace layout and part placement requirements.
CERAMPRO does not only supply standard ceramic plates. We focus on custom alumina ceramic sintering plates based on real working conditions, including furnace temperature, supported part weight, contact surface, required flatness, and production cycle.
Our advantages include:
Material selection support for different sintering conditions
Custom plate size, thickness, and structure
Grinding and flatness control available
Support for prototype and small-batch production
Suitable for OEM ceramic fixtures and kiln furniture
Drawing-based production for non-standard furnace support plates
Careful inspection before shipment to reduce fitting and use problems
This product can also be used together with other ceramic substrates and plates in high-temperature equipment or ceramic processing systems.
The following values are typical reference data for 99% and 96% alumina ceramic sintering plates. Final specifications may vary depending on material grade, plate size, thickness, structure, machining process, and customer drawing requirements.
| Parameter | 99% Alumina Al₂O₃ | 96% Alumina Al₂O₃ | Remarks |
|---|---|---|---|
| Bulk Density | ≥ 3.85 g/cm³ | ≥ 3.70 g/cm³ | High density helps reduce sagging during high-temperature use. |
| Max Working Temperature | 1750°C - 1800°C | 1600°C - 1650°C | Suitable for continuous use in air. |
| Flexural Strength | 350 - 400 MPa | 300 - 350 MPa | Provides good mechanical load capacity. |
| Thermal Conductivity | 30 - 35 W/(m·K) | 25 - 30 W/(m·K) | Helps improve heat distribution during firing. |
| Porosity | ≤ 0.5% | ≤ 1.0% | Dense, low-absorption surface. |
| Thermal Expansion | 8.2 × 10⁻⁶ /K | 8.0 × 10⁻⁶ /K | Measured at 1000°C. |
| Surface Flatness | ≤ 0.1 mm/100 mm | ≤ 0.2 mm/100 mm | Important for precision sintering support. |
| Acid / Alkali Resistance | Excellent | Excellent | Suitable for many corrosive atmospheres. |
| Item | 99% Alumina Ceramic | 96% Alumina Ceramic |
|---|---|---|
| Temperature Capability | Better for higher-temperature or repeated firing applications. | Suitable for general high-temperature furnace support. |
| Plate Stability | Higher density and lower porosity help improve dimensional stability. | Reliable for common setter plate and support plate use. |
| Contamination Control | Better choice when lower absorption and cleaner contact surfaces are required. | Suitable for applications with normal contamination control requirements. |
| Cost Consideration | Higher cost, but better for demanding sintering conditions. | More economical for standard or larger-size plates. |
| Recommended Use | Electronic ceramics, battery materials, precision ceramic sintering, and cleaner firing processes. | General ceramic firing, powder metallurgy support, kiln furniture, and industrial furnace plates. |
It is used to support, separate, or position parts during high-temperature firing, sintering, powder metallurgy, battery material processing, and electronic ceramic production.
Alumina ceramic offers better high-temperature resistance, chemical stability, wear resistance, and lower contamination risk compared with many metal support plates in furnace environments.
CERAMPRO can provide 96%, 99%, 99.5%, and 99.8% alumina ceramic options. The right grade depends on temperature, load, contamination control, flatness, and budget.
99% alumina usually has higher density, lower porosity, higher working temperature, and better stability. 96% alumina is more economical and suitable for many standard furnace support applications.
Yes. Plate size, thickness, holes, slots, grooves, chamfers, shape, surface finish, and flatness can be customized according to drawings or samples.
Yes. Precision grinding and flatness control can be provided when the plate needs to support precision parts or maintain stable contact during sintering.
Yes. If the plate has areas exposed to higher wear, impact, or mechanical stress, ZTA reinforcement can be evaluated after checking the working conditions and drawing.
Large-size plates can be evaluated based on size, thickness, flatness, firing temperature, and support method. For large or thin plates, design review is recommended to reduce deformation risk.
Please provide the drawing, material requirement, plate size, thickness, tolerance, quantity, working temperature, furnace atmosphere, supported part weight, and surface or flatness requirements.
Delivery time depends on material grade, plate size, thickness, tolerance, machining complexity, surface finish, and order quantity. The final schedule will be confirmed after drawing review and technical evaluation.
