Overview of Electrical Insulator Ceramic High Alumina Sleeve

Electrical Insulator Ceramic High Alumina Sleeve is precision-engineered from 99%+ pure aluminum oxide (Al₂O₃), offering exceptional mechanical strength and thermal stability up to 1800°C. These sleeves provide superior protection for shafts, bearings, and moving components in harsh industrial environments. With outstanding resistance to wear, corrosion, and thermal shock, they are widely used in chemical processing, power generation, and heavy machinery applications.

Key Features of Electrical Insulator Ceramic High Alumina Sleeve

Ultra-High Temperature Resistance – Stable performance up to 1800°C

Exceptional Wear Resistance – 5x harder than steel for extended service life

Corrosion-Proof – Impervious to acids, alkalis, and solvents

Precision Tolerance – Tight dimensional control (±0.01mm) for perfect fit

Electrical Insulation – Excellent dielectric properties for electronic applications

Customizable Designs – Available in various IDs, ODs, and lengths

(Electrical Insulator Ceramic High Alumina Sleeve)

Specification of Electrical Insulator Ceramic High Alumina Sleeve

This ceramic sleeve uses high-alumina material. It offers excellent electrical insulation. The alumina content is very high. This makes it strong mechanically. It resists breaking well. The surface is very smooth. It prevents electrical tracking. Leakage currents are minimized.

Voltage withstand is a key feature. It handles high voltages reliably. Its dielectric strength is superior. This makes it safe for demanding circuits. The material withstands high temperatures. It doesn’t degrade easily with heat. Thermal shock resistance is good. Sudden temperature changes cause less cracking.

Chemical stability is important. It resists many corrosive substances. Acids and alkalis don’t damage it easily. This ensures long service life. Dimensional accuracy is precise. The sleeve fits components correctly. It maintains consistent wall thickness.

Applications are diverse. It works well as a protective sheath. It insulates heating elements effectively. Thermocouples benefit from its protection. Resistors and other components use it. It isolates high-voltage terminals safely. Furnace and appliance wiring needs it. Industrial equipment relies on its insulation.

Key specifications define its use. The alumina percentage is critical. It typically ranges from 95% to 99%. Operating temperature is very high. It often exceeds 1500 degrees Celsius. Dielectric strength is measured in kV/mm. Values are usually high. Volume resistivity is significant. It remains stable across temperatures. Mechanical strength is measured in MPa. High alumina provides good numbers. Water absorption is very low. Moisture doesn’t penetrate easily.

(Electrical Insulator Ceramic High Alumina Sleeve)

Applications of Electrical Insulator Ceramic High Alumina Sleeve

Electrical insulator ceramic high alumina sleeves are essential components in demanding electrical systems. They excel at blocking electricity flow safely and reliably. These sleeves handle extremely high voltages without breaking down. Power transmission lines use them extensively. They protect connections and support structures from dangerous current leaks. This keeps electricity flowing where it should.

Industrial settings rely heavily on these alumina sleeves. Harsh factory environments demand tough materials. These sleeves withstand intense heat near furnaces or generators. They resist chemical damage from oils or solvents in equipment like oil-filled transformers. Their strength prevents cracking under vibration or mechanical stress common in heavy machinery. This reliability minimizes unplanned downtime.

Railway electrification systems use these ceramic sleeves. Trains require robust insulation for overhead wires and trackside equipment. Alumina sleeves provide long-lasting performance outdoors. They endure constant weather exposure, UV radiation, and temperature swings. Their non-porous surface repels moisture effectively. This prevents tracking currents that could cause failures. Substations, the backbone of power distribution, integrate these sleeves into critical components like bushings and insulators. They ensure safe operation even during voltage surges or lightning strikes. Cars use them too, particularly in spark plugs and sensors needing high electrical isolation under the hood.

The key advantage is material durability. High alumina content makes these sleeves incredibly hard and resistant to wear. They maintain excellent insulating properties over decades of service. Their resistance to thermal shock allows quick temperature changes without damage. Corrosion resistance is another major benefit. Acids, alkalis, and salts don’t easily degrade the ceramic surface. This combination of electrical safety and physical toughness makes high alumina sleeves indispensable for modern electrical infrastructure and demanding industrial applications.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Electrical Insulator Ceramic High Alumina Sleeve

What are electrical insulator ceramic high alumina sleeves?
These are tube-shaped parts made from special ceramic. They contain a high amount of alumina. Their main job is stopping electricity from flowing where it shouldn’t. They keep electrical systems safe and working right.

Why use high alumina ceramic?
High alumina makes the ceramic very strong. It handles extreme heat well. It resists wear and tear over time. It also stands up to chemical damage. This toughness is vital for reliable insulation in tough places.

Where are these sleeves typically used?
You find them inside high voltage equipment. They work in power transformers. They are parts of circuit breakers. They function in bushings and switchgear. They protect connections and support conductors safely.

What benefits do they offer?
Their big strength prevents breaking easily. They insulate extremely well even under high voltage stress. They don’t mind very hot temperatures. They last a long time without failing. They also keep their shape and size stable.

How do I choose the right sleeve?
Look at the voltage level your application needs. Check the mechanical load it must support. Consider the highest temperature it will face. Make sure the size and shape fit your equipment. Match the sleeve’s specs to your exact requirements.

(Electrical Insulator Ceramic High Alumina Sleeve)