Factory Direct Sale 99 Alumina Ceramic Ring Washer Al2O3 Precision Ceramic Structure Parts

Product Overview

Our 99% Alumina Ceramic Rings and Washers (Al₂O₃) are precision-engineered structural components designed for demanding industrial applications. These high-purity ceramic parts offer exceptional wear resistance, thermal stability, electrical insulation, and chemical inertness, making them ideal for use in electronics, machinery, medical devices, and chemical processing.

Key Features & Benefits

✔ High Hardness (Mohs 9) – Superior wear resistance compared to metals and polymers.

✔ Excellent Thermal Stability – Withstands temperatures up to 1600°C (2912°F).

✔ Outstanding Electrical Insulation – Volume resistivity >10¹⁴ Ω·cm, ideal for high-voltage applications.

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

✔ Low Thermal Expansion – Minimizes deformation under thermal cycling.

✔ Customizable Sizes & Shapes – Available in various dimensions (OD, ID, thickness) upon request.

Common Applications of Alumina Ceramic Rings & Washers

1. Electronics & Semiconductor Industry

Insulating spacers for high-voltage equipment

Substrates & carriers for semiconductor processing

RF/Microwave components due to low dielectric loss

2. Mechanical & Industrial Engineering

Wear-resistant bushings & bearings in pumps and valves

Sealing washers for corrosive fluid handling

Grinding & polishing components in precision machining

3. Chemical & Petrochemical Processing

Corrosion-resistant liners for reactors and pipelines

Thermocouple protection tubes in high-temperature furnaces

Flow control washers in aggressive chemical environments

4. Medical & Biotechnology

Biocompatible implant components (e.g., joint replacements)

Lab equipment insulators for sensitive instruments

Sterilizable surgical tool parts

5. Automotive & Aerospace

Sensor housings for exhaust & engine monitoring

Heat-resistant washers in braking systems

Lightweight structural parts for UAVs & satellites

Competitive Advantages

✅ Factory Direct Pricing – No middlemen, competitive costs

✅ Precision Manufacturing – Tight tolerances (±0.01mm available)

✅ Custom Solutions – Tailored dimensions, coatings, and surface finishes

✅ Fast Lead Times – Prototyping & bulk production support

Technical Parameters

Production process

Certifications

Our advantage

● Certificates: ISO & SGS

● OEM & ODM: OEM & ODM service is available

● Strict testing procedures :Meeting the requirements of the product design and process, providing reliable testing data.

● Short Delivery time:If less than 1000 pieces, it only takes around 5 days. We also stock some standard-sized products, if you need urgently, we can delivery very soon.

● Best ex-factory price

● Worldwide customers

● Customized according to needs

● Continuous research and development of new products

● Customer service:If you find some quality problem, please contact us, we’ll deal with it as soon as possible.

Packaging and shipping

Our customers have a wide range of processing choices for transportation mode.

Our Main Products

Company Profie

   Yixing Shengda Refractory Ceramic Co., Ltd, established in 1995, Yixing, China with an area of 4,000 square meters and fixed assets of over 1 million US dollars, is a professional manufacturer of Steatite Ceramic Parts, Alumina Ceramic Parts, Cordierite Ceramic Parts, Ceramic Band Heater Insulators, Ceramic Terminal Block, Thermostat Ceramic Parts, Zirconia Ceramics Parts, Ceramic Heater Plugs, etc. 

    Shengda Ceramic equipped with CAD/CAXA/Solidworks software to provide professional OEM & ODM service.

    Looking forward to co-operating with the customers from all over the world!

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