Alumina Insulator Manufacturing Expert
Focused on quality, you can trust it! We are a professional manufacturer of alumina insulators. With advanced manufacturing technology and strict quality control, we provide customers with high-quality products with high insulation, high temperature resistance and corrosion resistance. Our products are widely used in power equipment, electronic components, industrial automation and other fields, and have won industry recognition with excellent performance.
Our advantages:
※ Factory direct supply guarantee – more competitive price and shorter delivery time.
※ Customized service – support personalized customization of size, shape, aperture, surface treatment, etc.
※ Strict quality control – ISO certification to ensure the consistency of each batch of products.
If you are looking for high-reliability, long-life ceramic insulators, please contact us for samples or technical consultation! We look forward to working with you to provide better insulation protection for your power and electronic equipment!
By Features
Our alumina insulators are made of high-purity alumina material, which has excellent insulation properties (high dielectric strength), high temperature resistance, chemical corrosion resistance and excellent mechanical strength, ensuring long-term and stable operation in extreme environments.
Mainly used in the ignition devices of gas stoves, boilers and industrial combustion equipment.
Used for thermocouple protection tubes, high temperature furnace lining tubes, etc.
Adapt to long-term combustion above 1500℃ without damage, deformation, oxidation.
High strength, high insulation, and excellent anti-pollution flashover performance.
Non-conductive alumina (>10¹⁴ Ω·cm) for circuit breakers and switchgear.
Precision-machined to isolate live components in EV batteries and busbars.
Arc-resistant rings for transformer bushings and substation equipment.
Applied in high voltage switchgear, circuit breakers, disconnectors, etc.
Main Technical Specifications and Application
- Material: 95%-99.8% Alumina
- Max Operating Temperature: 1700°C
- Dielectric Strength: 15-30 kV/mm
- Thermal Conductivity: 20-30 W/m·K
- Applications: Power industry, electronics industry and industrial field.
Alumina insulators offer superior thermal stability, excellent electrical insulation, and high corrosion resistance, outperforming polymers and metals in extreme environments. Their low porosity and high mechanical strength ensure long-term reliability in industrial furnaces, power systems, and semiconductor equipment.
The higher the purity, the stronger the insulation and temperature resistance, but the higher the cost. 95% alumina is the most cost-effective choice, and 99% is suitable for ultra-high voltage or high frequency scenarios.
Absolutely. Alumina insulators provide high dielectric strength (15-30 kV/mm), effectively preventing electrical leakage in high-voltage environments. They are widely used in power transmission, circuit breakers, and electronic substrates.
During the production and quality inspection of alumina insulators, we ensure the reliability and consistency of product quality through strict raw material control, standardized processes and multi-level quality inspection processes.