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High Electrical Insulation
Excellent dielectric strength, suitable for high-voltage and high-frequency applications.
High Temperature Resistance
Stable performance under continuous high-temperature operation without deformation.
Precision CNC Machining
Complex grooves, holes, and structural details achieved with tight tolerances (±0.01 mm).
High Mechanical Strength & Wear Resistance
Suitable for long-term operation in harsh industrial environments.
Custom Design Supported
OEM & ODM available based on drawings or samples.
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NEW110
HaoRui
custom01001
High-Temperature Electrical Insulation Ceramic Component
The Alumina Ceramic Coil Former is a high-performance ceramic insulation component designed for high-voltage, high-temperature, and high-frequency electrical applications.
It is widely used in induction heating systems, semiconductor equipment, power electronics, and vacuum insulation assemblies.
Manufactured from high-purity Al₂O₃ alumina ceramic, this product provides excellent electrical insulation, thermal stability, and mechanical strength, making it suitable for long-term operation in harsh industrial environments.
High dielectric strength and insulation resistance
Suitable for high-voltage and high-frequency operating conditions
Ensures stable electrical performance and safety
Maintains structural stability under continuous high-temperature operation
No deformation or performance degradation
Suitable for thermal cycling environments
Dense ceramic structure with good strength
Wear-resistant and corrosion-resistant
Suitable for long service life in industrial equipment
CNC machining for complex grooves, holes, and internal structures
High dimensional consistency and repeatability
Machining tolerance up to ±0.01 mm
Fine grinding or polishing available based on application requirements
Our in-house machining capability ensures accurate fit and reliable performance in coil and insulation assemblies.
Material: 96% / 99% Alumina Ceramic (Al₂O₃)
Forming Process: Injection molding or dry pressing (depending on structure)
Machining: CNC precision machining + grinding
Surface Finish: Ground / polished (optional)
All processes are completed under strict quality control to ensure stable and consistent product quality.
Induction heating coils
Semiconductor manufacturing equipment
Power electronics systems
Electrical insulation assemblies
Vacuum and high-temperature equipment
We support full OEM & ODM customization:
Custom dimensions and structures
Based on customer drawings or samples
Engineering support for structure optimization
Small batch to mass production available
19+ years of engineering ceramic manufacturing experience
In-house CNC machining and inspection
Stable supply for semiconductor-grade ceramic parts
Professional technical communication and fast response
If you are looking for a reliable alumina ceramic coil former supplier for high-temperature and electrical insulation applications,
please contact us for technical discussion and quotation.
|Comment & FAQ
1. Are you a factory or a trading company?
A:We are a professional manufacturer of ceramic parts. we are factory.
2. Do you only supply standard parts or can customized parts according to our drawing?
A: All parts can be customized according to you drawings and will meeting your requirements perfectly.
3. Can the price be negotiated?
A: Of course, we will consider discounts for large-volume orders.
4: Can you guarantee the product?
A: Yes, we promise to provide quality assurance for all products, inspect according to your drawings and issue an inspection report. If you are not satisfied with our product quality or service, please feel free to give us feedback.
5: Can I visit your factory?
A: Of course, welcome your arrival, please contact us in advance and make an appointment.
6: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
7: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below:
sales@szhr-tech.com
Properties of Alumina material (Al2O3)
| Property | Item | 95% Al2O3 | 99% Al2O3 | 99.8%Al2O3 | Unit |
| Mechanical Characteristics | Color | White | light yellow | Ivory | |
| Bulk Density | 3.7 | 3.85 | 3.93 | g/cm3 | |
| Water Absorption | 0 | 0 | 0 | % | |
| Bending Strength | 300 | 310 | 370 | MPa | |
| Compressive Trength | 2,300 | 2,400 | 2500 | MPa | |
| Elastic Modulus | 320 | 340 | 390 | GPa | |
| Fracture Toughness | 3~4 | 3~4 | 4 | MPa m1/2 | |
| Weber Coefficient | 12 | 12 | 12 | m | |
| Vickers Hardness | 1,400 | 1,600 | 1850 | HV 0.5 | |
| Thermal Characterics | Coefficient of Line Thermal Expansion | 7~8 | 7~8 | 7~8 | 10-6 K-1 |
| Thermal Conductivity | 20 | 29 | 32 | W/mK | |
| Thermal Shock Resistance (Put in Water) | 250 | 200 | 280 | ΔT °C | |
| Max Working Temperature | 1,500 | 1,600 | 1700 | °C | |
| Electrical Characteristics | Volume Resistance At 20°C | >1014 | >1014 | >1014 | Ωcm |
| Dielectric Strength | 15×106 | 15×106 | 15×106 | V/m | |
| Dielectric Constant | 9 | 10 | 10 | εr | |
| One MHZ Dielectric Loss Angle at 20°C | 0.0004 | 0.0002 | 0.0001 | tanδ | |
| Chemical Characteristics | Nitric Acid (60%) 90°C | 0.1 | 0.1 | 0.05 | 24H WT Loss mg/cm2 |
| Sulphuric Acid (95%) 95°C | 0.3 | 0.34 | 0.22 | ||
| Caustic Soda (30%) 80°C | 0.9 | 0.95 | 0.04 |
High-Temperature Electrical Insulation Ceramic Component
The Alumina Ceramic Coil Former is a high-performance ceramic insulation component designed for high-voltage, high-temperature, and high-frequency electrical applications.
It is widely used in induction heating systems, semiconductor equipment, power electronics, and vacuum insulation assemblies.
Manufactured from high-purity Al₂O₃ alumina ceramic, this product provides excellent electrical insulation, thermal stability, and mechanical strength, making it suitable for long-term operation in harsh industrial environments.
High dielectric strength and insulation resistance
Suitable for high-voltage and high-frequency operating conditions
Ensures stable electrical performance and safety
Maintains structural stability under continuous high-temperature operation
No deformation or performance degradation
Suitable for thermal cycling environments
Dense ceramic structure with good strength
Wear-resistant and corrosion-resistant
Suitable for long service life in industrial equipment
CNC machining for complex grooves, holes, and internal structures
High dimensional consistency and repeatability
Machining tolerance up to ±0.01 mm
Fine grinding or polishing available based on application requirements
Our in-house machining capability ensures accurate fit and reliable performance in coil and insulation assemblies.
Material: 96% / 99% Alumina Ceramic (Al₂O₃)
Forming Process: Injection molding or dry pressing (depending on structure)
Machining: CNC precision machining + grinding
Surface Finish: Ground / polished (optional)
All processes are completed under strict quality control to ensure stable and consistent product quality.
Induction heating coils
Semiconductor manufacturing equipment
Power electronics systems
Electrical insulation assemblies
Vacuum and high-temperature equipment
We support full OEM & ODM customization:
Custom dimensions and structures
Based on customer drawings or samples
Engineering support for structure optimization
Small batch to mass production available
19+ years of engineering ceramic manufacturing experience
In-house CNC machining and inspection
Stable supply for semiconductor-grade ceramic parts
Professional technical communication and fast response
If you are looking for a reliable alumina ceramic coil former supplier for high-temperature and electrical insulation applications,
please contact us for technical discussion and quotation.
|Comment & FAQ
1. Are you a factory or a trading company?
A:We are a professional manufacturer of ceramic parts. we are factory.
2. Do you only supply standard parts or can customized parts according to our drawing?
A: All parts can be customized according to you drawings and will meeting your requirements perfectly.
3. Can the price be negotiated?
A: Of course, we will consider discounts for large-volume orders.
4: Can you guarantee the product?
A: Yes, we promise to provide quality assurance for all products, inspect according to your drawings and issue an inspection report. If you are not satisfied with our product quality or service, please feel free to give us feedback.
5: Can I visit your factory?
A: Of course, welcome your arrival, please contact us in advance and make an appointment.
6: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
7: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below:
sales@szhr-tech.com
Properties of Alumina material (Al2O3)
| Property | Item | 95% Al2O3 | 99% Al2O3 | 99.8%Al2O3 | Unit |
| Mechanical Characteristics | Color | White | light yellow | Ivory | |
| Bulk Density | 3.7 | 3.85 | 3.93 | g/cm3 | |
| Water Absorption | 0 | 0 | 0 | % | |
| Bending Strength | 300 | 310 | 370 | MPa | |
| Compressive Trength | 2,300 | 2,400 | 2500 | MPa | |
| Elastic Modulus | 320 | 340 | 390 | GPa | |
| Fracture Toughness | 3~4 | 3~4 | 4 | MPa m1/2 | |
| Weber Coefficient | 12 | 12 | 12 | m | |
| Vickers Hardness | 1,400 | 1,600 | 1850 | HV 0.5 | |
| Thermal Characterics | Coefficient of Line Thermal Expansion | 7~8 | 7~8 | 7~8 | 10-6 K-1 |
| Thermal Conductivity | 20 | 29 | 32 | W/mK | |
| Thermal Shock Resistance (Put in Water) | 250 | 200 | 280 | ΔT °C | |
| Max Working Temperature | 1,500 | 1,600 | 1700 | °C | |
| Electrical Characteristics | Volume Resistance At 20°C | >1014 | >1014 | >1014 | Ωcm |
| Dielectric Strength | 15×106 | 15×106 | 15×106 | V/m | |
| Dielectric Constant | 9 | 10 | 10 | εr | |
| One MHZ Dielectric Loss Angle at 20°C | 0.0004 | 0.0002 | 0.0001 | tanδ | |
| Chemical Characteristics | Nitric Acid (60%) 90°C | 0.1 | 0.1 | 0.05 | 24H WT Loss mg/cm2 |
| Sulphuric Acid (95%) 95°C | 0.3 | 0.34 | 0.22 | ||
| Caustic Soda (30%) 80°C | 0.9 | 0.95 | 0.04 |
