Key Performance Advantages of Our Ceramic Insulators
- High resistivity protects against current leakage in harsh electrical environments.
- Maintain stability at high temperatures. Far surpassing the heat resistance of plastics.
- Provide excellent corrosion resistance to acid, alkali, and oxidation.
- Have low thermal expansion to withstand temperature changes without cracks.
- High hardness and strength. Withstand intense, high-pressure mechanical stress.
- Low dielectric loss properties, reducing energy loss, ensuring stable operation at high frequency.
Precision Ceramic Insulator Solutions for Advanced Manufacturing
We provide high-precision ceramic insulator solutions designed to solve material failure, dielectric breakdown, and dimensional instability in extreme industrial environments.
High-quality dielectric parts. Provide good thermal stability and electrical resistance.
High-purity protective sleeves. Bring reliable electrical isolation and corrosion resistance.
Precision rings with micron-level tolerances and plasma resistance for semiconductor etching.
Thermally shock-resistant, machinable for vacuum furnace and laboratory assemblies.
Non-wetting, highly insulating rings. Used in molten metal processing and thermal management.
High thermal conductivity. Provide rapid heat dissipation for high-power electronics.
Stable mechanical properties with high strength. Ideal for high-pressure insulation.
Wear-resistant insulating tubes, high-impact durability and precision protection.
Strategic Ceramic Insulator Applications Empowering High-Tech Industries
Our ceramic insulator solutions empower your critical applications with many years of expertise. Ceramic insulators can solve material failure issues in your high-tech industry.
Semiconductor ManufacturingHighly pure insulators, resistant to plasma, are the critical materials used for etching and deposition equipment.
Aerospace & DefenseHigh-temperature resistant insulating materials for aerospace and defense equipment used under extremely harsh conditions.
Power & Energy SystemsEmploying insulating materials to ensure that there is no risk of leakage of electricity from power lines.
Why Choose Newthink Ceramic Insulator?
Newthink provides overall assembly solutions to you. From design and custom structures, to polyurethane and steel shells, we ensure our products possess superior performance in complex industrial environments.
With expertise from 2012, we provide custom assembly designs that minimize waste and cut down the cost of purchases. Our engineering team works closely with you to ensure high-performance results.
We provide ceramic insulators tailored to your required dimensions, usage, and electrical resistance. With 0.003mm straightness, we ensure our products fit perfectly into your high-tech assemblies.
Our advanced manufacturing facility rapidly meets large-scale orders with maintaining stable quality. We ensure a stable supply chain and quick turnaround times, typically 15 days.
Newthink has established a strict quality control system following international ISO standards. Every ceramic part meets the safety and performance benchmarks required.
Dedicated quality inspection team conducts testing on every product before packaging. We verify dielectric strength and dimensional accuracy to eliminate the risk of failure.
To ensure there is no damage in transition, we choose foam separation for small parts and custom plywood boxes for larger ones. It protects ceramic products during long-distance shipping.
Ceramic Insulator Production Workshop
Newthink’s advanced production workshop will help you address any critical material failures. Through excellent quality control and precision manufacturing, we operate in an ISO-certified facility where the latest CNC technology. All our ceramic products can achieve a precision of 0.003 mm. With experience from 2012, we provide high-quality advanced ceramic products that lower your maintenance expenses and guarantee stability for the long run. Our ceramic products have been used in many high-end sectors, like semiconductor manufacturing, aerospace, and high-temperature industrial applications.
Thermal Stability for Ceramic Insulators at High Temperatures
Extremely high temperatures normally result in distortion or dielectric breakdown in traditional insulator materials, resulting in huge losses for high-tech sectors.
Our high-performance ceramic insulators possess a complete structure and dielectric strength even under temperatures of 1,650℃. Their low thermal expansion coefficient prevents cracking or deformation under quick temperature changes. They can perform stably in both furnaces and semiconductor chambers.
Micron Precision Advanced Ceramic Insulator
High micron precision is necessary to ensure the perfect fit of components that will fail due to even minor errors. The advanced ceramic insulator is designed with high tolerance up to 0.003 mm to ensure perfect precision and functionality. The strength of the insulator makes sure that the insulator doesn’t experience any wear and tear to guarantee precise assembly. By reducing vibrations and friction, this product becomes the best fit for semiconductor manufacturing and other high-end industries.
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Meet Us at Exhibitions and Factory Visits
Newthink actively participates in major industrial and advanced ceramics exhibitions worldwide throughout the year, such as Italy, Germany, Japan and Vietnam, meeting directly with our customers.
We welcome you visit our factory to witness our control of quality and discuss our future cooperation. Through frequent interactions at global events and visits, we’ve earned deep trust from clients in 40+ countries and regions.
Parameter Reference for Ceramic Insulators
The table below provides a performance reference for alumina and zirconia ceramic insulators. You can tell us your needs, and we will help you match the right products and performance.
- Alumina Insulator
- Zirconia Insulator
| Category | Item | Unit | Value |
| Basic Physical Properties | Color | / | White; Ivory |
| Alumina Content (Al2O3) | % | ≥96% – ≥ 99.999 | |
| Bulk Density | g/cm3 | 3.7-4.0 | |
| Water Absorption | % | 0 | |
| Apparent Porosity | % | 0 | |
| Mechanical Properties | Flexural Strength | MPa | 300-500+ |
| Compressive Strength | MPa | 2000-2600 | |
| Vickers Hardness | GPa | 13.8-18 | |
| Mohs Hardness | Mohs | 9 | |
| Fracture Toughness | MPa·m1/2 | 3-5 | |
| Elastic Modulus | GPa | 300-380 | |
| Poisson’s Ratio | / | 0.20-0.27 | |
| Thermal Properties | Max Operating Temperature | ℃ | Long-term: 1,500-1,650 Short-term: Up to 1,750-1,800 |
| Thermal Conductivity | W/(m·K) | 20℃: 20-30 High Purity (99.7%): ≥ 24-32 | |
| Thermal Shock Resistance | ℃ | 200-250 | |
| Electrical Properties | Volume Resistivity | Ω·cm | 20℃: >1014 300℃: >108 |
| Dielectric Strength | KV/mm | 96% Grade: 15-20 High Purity: 17-50 | |
| Dielectric Constant (1MHz) | / | 9-10 | |
| Chemical Properties | Acid Resistance | mg/cm2 | 90℃ HNO3: <0.05-0.12 95℃ H2SO4: <0.23-0.3 |
| Alkali Resistance | mg/cm2 | 80℃ NaOH: <0.04-0.9 | |
| Other | Surface Roughness (Ra) | μm | 0.1-0.75 |
| Dimensional Accuracy | / | Up to ± 0.002 mm |
| Category | Parameter | Unit | Value |
| Physical Properties | Density | g/cm3 | 5.8 – 6.1 |
| Apparent Porosity | % | ≤0.1 (Dense Sintered Bricks) 20 – 50 (Porous Bricks) | |
| Mechanical Properties | Bending Strength | MPa | 800 – 1500 |
| Compressive Strength | MPa | 2000 – 3500 | |
| Vickers Hardness | HV | 1150 – 1350 | |
| Fracture Toughness | MPa·m1/2 | 6 – 12 | |
| Elastic Modulus | GPa | 200 – 220 | |
| Thermal Properties | Melting Point | ℃ | 2715 |
| Maximum Operating Temperature (Atmospheric) | ℃ | 1000−1600 | |
| Thermal Expansion Coefficient (20 – 400℃) | /℃ | 9.6 – 11.5×10-6 | |
| Thermal Conductivity (20℃) | W/(m·K) | 2.0 – 3.5 | |
| Thermal Shock Resistance (ΔT) | ℃ | 250 – 500 | |
| Electrical Properties | Volume Resistivity (20℃) | Ω·cm | >1013 |
| Dielectric Constant (1MHz) | 26 – 33 | ||
| Dielectric Loss (1MHz) | 0.0002 – 0.009 | ||
| Chemical Stability | Acid Resistance (60% HNO3,90℃) | mg/cm2/day | ≤0.02 |
| Alkali Resistance (10% NaOH,95℃) | mg/cm2/day | ≤0.04 | |
| Water Absorption | % | 0 (Dense Bricks) ≤0.01 (Porous Bricks) |
Related Products
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Heaters that efficiently operate with ceramic insulators for stable performance.
A ceramic insulator is a high-end dielectric element. It can provide excellent electrical insulation, helping your high-end device avoid electricity loss. Ceramic insulators are ideal in industries where other materials cannot withstand extreme heat.
Alumina is an economical choice when used for electrical insulation applications. But for high-energy electronic equipment, aluminum nitride is preferred. This is because the latter has a high dielectric strength as well as high thermal conductivity. It can dissipate heat efficiently to prevent burnout.
Ceramic insulation is essential in semiconductor etching, aerospace thermal management, and high-voltage power systems. It provides indispensable electrical isolation, corrosion resistance, and thermal stability to ensure mission-critical equipment operates safely and efficiently.
The best options are Boron Nitride or high-purity Alumina. These materials are highly compatible with the vacuum environment and maintain their mechanical structures even at temperatures greater than 1,650℃.
Absolutely. While plastics can weaken or lose their integrity due to chemical reaction and heat, ceramics stay intact and unreacted. Employing ceramics significantly extends component lifespan, reducing costly maintenance and downtime.
Opt for materials with a low coefficient of thermal expansion, such as Silicon Nitride. This type of material is designed not to crack or deform at high temperatures. It makes your assembly dimensionally consistent and leak-proof despite any temperature changes.
