Wear Resistant 99 Alumina Ceramic Head Bead Insulator for Industrial Sensors Electronics

﹡Product Overview

Our 99% Al₂O₃ alumina ceramic head bead insulators are engineered for exceptional durability, electrical insulation, and thermal stability, making them ideal for industrial sensors, electronics, and high-performance applications. Crafted from high-purity alumina ceramic (Al₂O₃), these ceramic beads and insulators outperform plastic or metal alternatives with superior wear resistance, corrosion immunity, and long-term reliability in harsh environments.

﹡Key Features

✔ Ultra-High Wear Resistance – Ideal for abrasive or high-friction applications.

✔ Excellent Electrical Insulation – Low conductivity ensures safety in sensitive electronics.

✔ Thermal Stability – Withstands extreme temperatures (up to 1600°C).

✔ Chemical & Corrosion Resistant – Resists acids, alkalis, and solvents.

✔ Precision-Engineered – Customizable dimensions (±0.1mm tolerance) for exact fitment.

﹡Technical Specifications

• Material: 99% Alumina Ceramic (Al₂O₃)

• Density: ≥3.8 g/cm³

• Flexural Strength: 300-400 MPa

• Dielectric Strength: 15-25 kV/mm

• Thermal Expansion: 8.0×10⁻⁶/°C

• Surface Finish: Smooth or customized (glazed/matte)

﹡Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

﹡Certifications

﹡Company

Yixing Shengda Refractory Ceramic Co, Ltd. was established in Yixing City, China in 1995, witha production area of over 10,000m2. lt is an enterprise specializing in the production of aluminaceramic,zirconia ceramic,slicon nitride, silicon carbide and other precision ceramic products. 

And we also produce ceramic band heaters, ceramic terminal block, cordierite and mullite ceramic parts an other ceramic products.

﹡Ceramic Properties