Ceramic Composite Insulation Seal Sleeve Manufacturer & Supplier

✅ Dual Performance Combination

Metal outer ring: Impact resistant, easy to install; flange / thread connection available.

Ceramic inner ring: Insulation resistance >10¹²Ω, arc resistance ≥180kV/cm, prevents current leakage.

✅ Extreme Environment Resistance

Operating temperature: -60°C to 1000°C; short-term up to 1200°C (Si₃N₄ type).

Resists acid, alkali, oil, steam; compatible with pH 0–14 corrosive media.

✅ Zero Leakage Sealing

Hermetic metal‑ceramic sintering; helium leak rate <1×10⁻⁹ Pa·m³/s; pressure resistance ≥50MPa.

✅ Customized Design

Bore: Φ5–50mm; outer diameter: Φ20–200mm; thickness: 5–50mm.

Conductive / insulating coating, shock-absorbing layer available.

Power & Energie

High-voltage switchgear bushings, transformer terminals, fuel cell seals, EV battery module insulation.

Chemical & Oil-Gas

Reactor agitator seals, high-temperature valve stem insulation, downhole sensor protection.

Transportation & Luft- und Raumfahrt

EV motor shaft insulation, aero-engine ignition seals, rocket fuel valve components.

Industrial Equipment

Laser cooling line seals, semiconductor vacuum chamber feedthrough insulators.

Advanced composite process: Gradient sintering, seamless metal‑ceramic bonding, no thermal cracking.

Strict QC: 100% high-voltage insulation & salt spray test (1000h).

Fast delivery: Standard items 72h; custom 7–15 days.

Full service: Selection, installation, failure analysis.

Parameter	Details
Material Combination	Outer: SUS304/316L, Inconel 600; Inner: 95% Al₂O₃ / Si₃N₄
Bore Range	Φ5mm – Φ50mm (standard: Φ8mm)
Insulation Resistance	>10¹²Ω @ DC 1000V (25°C, 60%RH)
Spannungsfestigkeit	≥20kV/mm (1mm, 50Hz AC)
Thermal Shock Stability	ΔT 800°C water cooling >20 cycles without cracking
Sealing Pressure	Static ≤50MPa; Dynamic ≤30MPa
Certifications	ISO 9001, UL 94 V-0, ASTM D257