Engineered for demanding applications

Alumina Ceramic
Components

Standard and custom alumina ceramic components engineered for demanding applications.

Up to 99.8% Al₂O₃High-Purity Alumina Ceramic
2,000 mm (78.7 in.)Maximum Component Length
0.005 mm (0.0002 in.)Machining Accuracy
Material performance

What Are Alumina Ceramics?

Alumina ceramics are advanced technical ceramics primarily composed of aluminum oxide (Al₂O₃). They combine high hardness, wear resistance, electrical insulation, thermal stability, and chemical resistance, making them well suited for components that must perform reliably under demanding operating conditions.

01

Wear & Mechanical Stress

High hardness and wear resistance help extend component life in abrasive, high-friction, and mechanically demanding environments.

02

Electrical & Thermal Demands

Excellent electrical insulation and thermal stability support reliable performance across a wide range of operating conditions.

03

Chemical & Harsh Environments

Good chemical stability makes alumina ceramics suitable for components exposed to many corrosive or chemically aggressive environments.

A well-balanced combination of performance, manufacturability, and versatility makes alumina ceramics one of the most widely used technical ceramic materials.

The CIMI advantage

High-Purity Alumina Ceramics.
Large Components. Precision Manufacturing.

We form, machine, and finish large ceramic components using alumina grades ranging from 95% to 99.8% Al₂O₃.

Up to 99.8% Al₂O₃Alumina Ceramic Grades · 95–99.8%
2,000 mmMaximum Length · 78.7 in.
800 mmMaximum Diameter or Width · 31.5 in.
0.005 mmMachining Accuracy · 5 μm / 0.0002 in.
Ra 0.02 μmMinimum Surface Roughness
Large Ceramic PartsForming · Machining · Finishing

Achievable dimensions, machining accuracy, and surface finish depend on the material, part geometry, and process requirements. The limits shown apply individually and may not be achievable together on the same part.

Industries & applications

Ceramic Solutions Across Industries

Explore ceramic solutions for semiconductor manufacturing, battery and new energy applications, and thermal management, along with porous ceramic products and components for other industries.

Inspection & Quality Control

Discuss dimensional, surface, and material inspection requirements with our engineering team as part of your project review.

Our team will confirm the available inspection methods, equipment, and applicable standards for your project.

From drawing to production

Custom Alumina Ceramic Components

We manufacture custom alumina ceramic components based on customer drawings, samples, and specific application requirements. From material selection and forming to precision machining and final inspection, we support both prototype development and volume production.

01

Custom Dimensions

We manufacture components to your specified dimensions.

02

Complex Geometries

We manufacture complex shapes and structural features to meet your application requirements.

03

Tight Tolerances

Our precision machining capabilities support tight dimensional tolerances.

04

Surface Finishing

Grinding, lapping, and polishing options are available to meet specific surface requirements.

05

High-Purity Alumina Options

High-purity alumina grades are available for applications with demanding material requirements.

06

Prototype to Volume Production

We support prototype development and validation, repeat orders, and volume production.

  1. Drawing
  2. Material Selection
  3. Design for Manufacturability Review
  4. Prototype
  5. Production
  6. Inspection
Manufacturing capabilities

How We Manufacture Alumina Ceramic Components

We use a range of forming and sintering processes to manufacture alumina ceramic components in different shapes and sizes, at production volumes suited to each application.

The appropriate manufacturing process is selected based on component geometry, size, production volume, and performance requirements.

Forming Processes

  • Ceramic Injection Molding
  • Dry Pressing
  • Cold Isostatic Pressing (CIP)
  • Extrusion

Sintering Processes

  • Hot-Press Sintering
  • Vacuum Sintering
OUR PRODUCTION FACILITY

Inside Our Production Facility

A closer look at our production floor, machining centers, and ceramic processing equipment.

Machining area
CNC machining center
Thermal processing equipment
Hydraulic press
Powder processing equipment
Production floor
Processing equipment
Your questions, answered

Frequently Asked Questions

What alumina ceramic grades do you offer?

We offer alumina ceramics with Al₂O₃ content from 95% to 99.8%. Grade selection depends on the application, component geometry, and performance requirements.

Can you manufacture custom alumina ceramic components?

Yes. We manufacture custom components based on customer drawings, samples, dimensions, tolerances, surface requirements, and application conditions.

What is the maximum component size you can manufacture?

Large-format alumina ceramic components can be manufactured up to 2,000 mm (78.7 in.) in length and up to 800 mm (31.5 in.) in diameter or width, depending on component geometry and manufacturing requirements.

What machining accuracy can you achieve?

We can achieve machining accuracy of 0.005 mm (0.0002 in.), depending on component geometry and processing conditions.

What surface finish can you achieve?

We can achieve surface roughness as low as Ra 0.02 μm, depending on the component and finishing process.

Do you support prototypes and volume production?

Yes. We support projects from prototype development and engineering validation through repeat orders and volume production.

What information do you need to prepare a quote?

A drawing or 3D model, dimensions, material grade or purity requirement, tolerances, surface finish, quantity, and application conditions will help us evaluate your project more efficiently.

Let's discuss your application

Need a Custom Alumina Ceramic Component?

Send us your drawing, specifications, or application requirements. Our team will review your project and recommend a suitable material grade and manufacturing approach.

Contact Us