Insulating Refractory Heat Resistant Ceramic Alumina Washer

Product Overview

Our alumina ceramic washers are engineered to provide exceptional thermal insulation, electrical resistance, and mechanical stability in high-temperature environments up to 1700°C (3092°F). Manufactured from 99% pure aluminum oxide (Al₂O₃), these precision components deliver superior performance compared to traditional metal washers in demanding industrial applications.

Key Product Advantages

1. Ultra-High Temperature Resistance - Stable up to 1700°C continuous operation

2. Excellent Electrical Insulation - Volume resistivity >10¹⁴ Ω·cm at 1000°C

3. Superior Thermal Shock Resistance - Withstands rapid temperature cycling

4. Exceptional Mechanical Strength - Compressive strength >2200 MPa

5. Chemical Inertness - Resists acids, alkalis, and corrosive gases

6. Customizable Dimensions - Available in various thicknesses and diameters

Industry Applications

✔ High-Temperature Furnace Systems

✔ Power Generation Equipment

✔ Semiconductor Manufacturing

✔ Automotive & Aerospace

✔ Chemical Processing

Why Choose Our Ceramic Products?

✅ Factory Direct Pricing - Eliminate middleman markups

✅ ISO-Certified Manufacturing - Consistent quality assurance

✅ Rapid Prototyping - 2-3 week lead time for samples

✅ Technical Expertise - 30+ years in advanced ceramics

✅ Global Logistics - Reliable worldwide shipping

Technical Parameters

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

Our customers

Packaging and shipping

Transport

FAQ：

Q: Do you have the products in stock? 

A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.

Q: How do you pack the goods?

A: Our standard packaging is carton, we can customize it as per your requirement as well.

Q: How many days do you finish the sample?

A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)