Precision Ceramic Solutions for High-Voltage & Electrical Insulation

Direct-factory precision diamond grinding and multi-axis micro-machining of advanced technical ceramics engineered with exceptional dielectric strength, low dissipation factors, and supreme thermal stability.

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Key Technical Performance

High dielectric strength (≥15 kV/mm), exceptional volume resistivity (>10¹⁴ Ω·cm), strict linear dimensional controls down to ±0.003 mm, zero open porosity for gas-tight vacuum reliability, calibrated CMM validation reports, and 100% strict legal NDA compliance.

Critical Applications

Precision-machined ceramic components for electrical insulation systems

High-Voltage & Power Transmission

High-Voltage Vacuum Interrupter Ceramic Bushings, Gas-Tight Vacuum Feedthrough Insulator Sleeves, High-Rigidity Busbar Supports, and Custom Machined Switchgear Insulation Components.

Electronic Substrates & Packaging

High-Thermal Aluminum Nitride (AlN) Substrates, Custom Fine-Pitch IC Chip Carrier Trays, Hybrid Circuit Dielectric Package Bases, and High-Power IGBT Module Thermal Spacers.

Vacuum & Plasma Sub-systems

Vacuum Process Chamber Viewport Ceramic Rings, High-Dielectric Plasma Processing Electrode Isolators, Sub-Micron Flatness Vacuum Feedthrough Connectors, and Custom Micro-Feature Machined Insulator Shields.

EV & High-Power Automotive Electronics

High-Voltage EV Battery Pack Isolation Components, Precision Automated Testing Socket Matrix Plates, High-Temperature Sensor Cavity Housings, and Fine-Pitch Custom Relay Ceramic Core Insulators.

Dielectric Properties Comparison

Reference data for electrical insulation material selection at room temperature

MaterialDielectric StrengthVolume ResistivityDielectric Constant (@1MHz)
Alumina 95% Grade15 – 18 kV/mm> 10¹⁴ Ω·cm9.0 – 9.5
Alumina 99.5% Grade18 – 20 kV/mm> 10¹⁴ Ω·cm9.5 – 10.0
Aluminum Nitride (AlN)15 – 18 kV/mm> 10¹⁴ Ω·cm8.5 – 9.0
Zirconia (ZrO₂ YSZ)10 – 12 kV/mm> 10¹² Ω·cm28.0 – 30.0

Precision Ceramic Components for Electrical Insulation Systems

Validate Your Industry-Specific Ceramic Component Blueprint

Ready to submit your engineering drawings for factory-direct evaluation? Upload your 2D blueprints or 3D CAD files (.STEP / .IGS) right below. Our Dongguan tech team will conduct an extensive design-for-manufacturability (DFM) review and output an accurate, competitive factory quote within 24 hours. Regular sample prototyping completed in 7-10 business days with full FAI/OQC reports. 🔒 100% Strict NDA Protection Legally Guaranteed.

Ready to Start Your Ceramic Component Project?

Send us your 2D drawings, 3D CAD files (.STEP / .IGS) or physical samples. Our engineering team will review manufacturability and return a competitive direct-factory quotation. Full NDA protection.

Email: james@korecera.com

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