Introduction
Precision ceramic components are high-performance parts manufactured from advanced ceramic materials and finished through precision machining processes such as grinding, lapping, and polishing. These components are widely used in industries requiring high accuracy, electrical insulation, wear resistance, and thermal stability.
As a professional precision ceramic components manufacturer, Jinghui Ceramic provides:
– Tight tolerances up to ±0.001 mm
– Complex geometry machining
– High surface finish (Ra ≤ 0.1 μm)
– Rapid prototyping and mass production
Our custom ceramic components are widely used in semiconductor equipment, medical devices, electronics, and high-temperature industrial systems.
What Are Precision Ceramic Components
Precision ceramic components refer to engineered parts made from sintered advanced ceramics and further processed to achieve precise dimensions, surface finishes, and functional performance.
Unlike conventional materials, ceramic components offer:
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extremely high hardness
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excellent electrical insulation
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outstanding wear resistance
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superior thermal stability
These characteristics make them essential in high-tech industries such as semiconductor manufacturing, medical devices, and electronics.
Precision Ceramic Components by Material
Different ceramic materials are selected based on application requirements.
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most widely used
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excellent insulation
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cost-effective
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high strength and toughness
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suitable for mechanical load
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semiconductor properties
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resistant to high temperatures and corrosion
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good hardness and toughness
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for wear-resistant components
Precision Ceramic Components by Shape
Precision ceramic components are available in various shapes depending on application requirements.
Ceramic tubes are cylindrical components used for insulation, protection, and fluid or gas transport in high-temperature environments.
Ceramic plates are flat components widely used as substrates, insulating layers, and structural supports.
Ceramic rings are circular components used for sealing, positioning, and wear-resistant applications.
Ceramic rods are solid cylindrical components used for structural support, insulation, and guiding applications.
Precision Ceramic Components by Applications
Precision ceramic parts are generally customized to your specific needs. We currently offer the following categories of precision ceramic products:
Semiconductor Ceramics
Used in wafer handling, vacuum environments, and plasma-resistant components.
Medical Ceramics
Applied in surgical instruments, implants, and diagnostic equipment.
Energy Ceramics
Applied in fuel cells, battery systems, and renewable energy equipment.
Electronics Ceramic
Used as insulating substrates, heat dissipation components, and high-voltage parts.
Why Use Ceramic Components
Ceramic components are increasingly replacing metal and plastic parts in critical applications due to their superior material properties.
Ceramics are excellent electrical insulators, ideal for high-voltage and electronic applications.
Ceramic materials can withstand extreme temperatures where metals and plastics fail.
Their high hardness ensures long service life even under abrasive conditions.
Ceramics are chemically stable and resistant to most acids and alkalis.
Minimal thermal expansion ensures precision in high-temperature environments.
Full-process Quality Control
We are an ISO 9001 certified company, and we implement integrated and strict control over the entire production process. From raw materials to manufacturing to shipment, every stage of production undergoes multiple inspection procedures—including incoming material inspection, first article inspection, self-inspection, mutual inspection, patrol inspection, and final inspection—to ensure quality compliance.
High-precision Machining Equipment
We are equipped with high-precision machining equipment such as CNC lathes, grinders, milling machines, drilling machines, polishing machines, and cutting equipment. We select appropriate equipment and machining technologies based on the requirements of the ceramic parts, ensuring both production efficiency and high-quality machining. For example, in grinding, the processes we commonly perform include flat grinding, cylindrical grinding, internal grinding, and centerless grinding.
High-precision Testing Instruments
We are equipped with high-precision testing instruments such as electron microscopes, optical measuring machines, coordinate measuring machines, height gauges, surface roughness testers, densitometers, laser grain analytical instruments, coating thickness gauges, mechanical strength testers, and resistance meters. These instruments can accurately measure the dimensions, surface quality, mechanical properties, and other parameters of ceramic parts, ensuring that products meet design requirements.
Ceramic Material Properties Comparison
The four ceramic materials we most commonly use are alumina (Al2O3), zirconia (ZrO2), silicon nitride (Si3N4), and aluminum nitride (AlN). Their material properties are provided for your reference.
1. Mechanical Properties Comparison
| Property | Unit | 99.5% Al2O3 | 99% Al2O3 | 96% Al2O3 | 85% Al2O3 | 75% Al2O3 | 3Y-TZP | MSZ | AlN | Si3N4 |
| Density | g/cm3 | ≥3.9 | ≥3.8 | ≥3.65 | >3.4 | 3.2~3.4 | ≥6.0 | ≥5.72 | 3.3 | ≥3.2 |
| Flexural Strength | MPa | ≥350 | ≥310 | ≥280 | ≥220 | ≥200 | >800 | ≥750 | ≥310 | ≥700 |
| Modulus of Elasticity | GPa | 370 | 350 | 303 | 221 | 200 | 200 | 200 | 310 | 290~310 |
| Poisson’s Ratio | / | 0.22 | 0.22 | 0.2~
0.25 |
0.22 | 0.2 | 0.30 | 0.31 | 0.21 | 0.25 |
| Vickers Hardness | HV | ≥1570 | ≥1520 | ≥1380 | ≥1100 | ≥1000 | 1230 | 1070 | 1040 | 1420 |
| Compressive Strength | MPa | ≥2240 | 2160 | 2068 | 1930 | 2000 | 2500 | 1750 | 2100 | 2500 |
| Tensile Strength | MPa | 262 | 248 | 206 | 155 | <100 | 900~
1200 |
390 | 300~
450 |
600 ~
1000 |
| Fracture Toughness | MPa·m1/2 | 4~5 | 4~5 | 4~5 | 3~4 | 2.5~3.5 | 6.5~8 | 11 | 3 | 6~7 |
2. Thermal Properties Comparison
| Property | Unit | 99.5% Al2O3 | 99% Al2O3 | 96% Al2O3 | 85% Al2O3 | 75% Al2O3 | 3Y-TZP | MSZ | AlN | Si3N4 |
| Max. Service Temperature
(Non-loading) |
℃ | 1700 | 1600 | 1500 | 1200~
1400 |
1100 | 1500 | 1500 | 1200 | 1400 |
| Thermal Shock Resistance | ΔT (℃) | ≥200 | ≥200 | ≥220 | ≥200 | ≥200 | >300 | ≥350 | 700 | 600 |
| CTE (Coefficient of Thermal Expansion) @ 20-800℃ | 1×10-6/℃ | 6.5~8 | 6.2~8 | 6.5~8 | 5~8 | ≤6 | 9~11 | 10~10.5 | 4~6 | 3~3.2 |
| Thermal Conductivity @ 20℃ | W/(m·k) | 30 | 29 | 24 | 16 | 15 | 3 | 2.2 | 170~230 | 20 |
| Specific Heat @100℃ | 1 x 10-3 J/(kg·K) | 780 | 780 | 780 | 780 | 780 | 460 | 400 | 720 | 650 |
3. Electrical Properties Comparison
| Property | Unit | 99.5% Al2O3 | 99% Al2O3 | 96% Al2O3 | 85% Al2O3 | 75% Al2O3 | 3Y-TZP | MSZ | AlN | Si3N4 |
| Dielectric Constant | (E) | 9.7 | 9.6 | 9.4 | 8 | 8 | 29 | 28 | 8~9 | 7~8 |
| Dielectric Loss (tanδ) @ 1 MHz | / | 0.0001~ 0.0003 | 0.0002~ 0.0006 | 0.001~ 0.003 | 0.003~ 0.008 | 0.005~ 0.015 | 0.001~ 0.005 | >0.01 | 0.0001~ 0.0005 | 0.001~ 0.003 |
| Dielectric Strength | KV/mm | ≥18 | ≥17 | ≥15 | ≥10 | ≥8 | 9 | 9.4 | ≥17 | 13 |
| Volume Resistivity | Ω·cm | 1*1014 | 1*1014 | 1*1013 | 1*1013 | 1*1012 | 1*1013 | >1*1013 | >1*1013 | >1*10 |
Among these materials, alumina offers the best cost-performance ratio, while zirconia provides superior toughness, and aluminum nitride is ideal for thermal management applications.
Customization Options
We provide full customization services for precision ceramic components. Customization includes:
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custom dimensions
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material selection
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tight tolerances
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surface finishing
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complex geometries
Our engineering team works closely with customers to optimize designs for manufacturability and performance.
Why Choose Jinghui
– 18+ years of experience in precision ceramic machining
– Tolerances up to ±0.001 mm
– Surface roughness Ra ≤ 0.1 μm
– ISO 9001 certified manufacturing
– Fast lead time: samples in 7–10 days
– Flexible MOQ for prototyping and mass production
We are committed to delivering high-quality precision ceramic components for global customers.
Ceramic machining refers to the use of a series of precision machining techniques to transform sintered high-performance ceramic materials (such as alumina and zirconia) into components that meet specific shape, dimensional, and surface requirements.
When directly sintered ceramic parts cannot meet precise tolerances, or when post-sintering warping requires correction, we perform machining on the sintered ceramics.
Due to ceramics being hard and brittle, machining them is no easy task. Improper processing can easily lead to microcracks and fractures.
Machining ceramics is a precision process that requires mastery of skilled techniques and careful monitoring of the machining process.
The precision and surface finish of ceramic parts are not determined by a single factor. They are the result of the combined effects of multiple factors, such as material properties, part geometry, manufacturing process, and budget.
Provide your drawings or requirements, and our engineers will evaluate them and recommend the most cost-effective and reliable manufacturing solution.
The materials commonly used in precision ceramics are aluminum, zirconia, silicon nitride, and aluminum nitride.
The choice of material depends on your specific working conditions. Below is a quick selection guide for your reference. We can also make recommendations upon request.
1. Seeking cost-effectiveness and corrosion resistance/insulation → Choose alumina.
2. Requiring high toughness (shatter resistance) or biocompatibility → Choose zirconia.
3. Facing high temperatures, thermal shock, high speeds, or demanding ultra-long service life → Choose silicon nitride.
4. Core requirement is efficient heat dissipation (with insulation) → Choose aluminum nitride.
Delivery time is related to the complexity of the parts, materials, and process requirements. Here is our approximate timeline.
1. Prototyping Stage
Simple standard parts: About 2-4 weeks.
Medium complexity parts: About 4-6 weeks.
High complexity/Initial production: About 6-8 weeks or longer (including design collaboration and multiple trial productions).
2. Mass Production Stage
After sample confirmation, our standard lead time for mass production orders is generally 4-8 weeks. The specific lead time depends on the order quantity and production capacity schedule.
We support your needs during the product development and validation phases. For larger products, the minimum sample quantity can be 1 piece. But if the size is small, producing a single sample is difficult and costly. Therefore, we will have a MOQ requirement (the specific quantity is determined based on demand).
The MOQ for bulk orders needs to be specifically assessed, but generally, the order amount should be no less than USD 150.