Ceramic Grinding & Polishing

At Great Ceramic, we offer advanced ceramic grinding and polishing services tailored for high-performance applications in electronics, medical, aerospace, and more. Our expert team specializes in ceramic machining, precision surface finishing, and post-fired ceramic processing, ensuring every component achieves tight tolerances, flawless surface quality, and superior functional reliability.

Whether you’re fabricating zirconia shafts, alumina insulators, or custom ceramic housings, we are your partner for consistent quality and competitive turnaround.

Ceramic Grinding & Polishing

Why Ceramic Grinding & Polishing Is Essential

Unlike traditional materials, technical ceramics are extremely hard, chemically inert, and thermally stable—but also brittle and difficult to machine. Therefore, advanced grinding and polishing techniques are required to:

  • Achieve ultra-smooth, mirror-like surface finishes (Ra < 0.02 μm)

  • Improve dimensional stability and ensure high-precision assembly
  • Enhance wear resistance, chemical durability, and cleanliness
  • Reduce microcracks and increase fatigue resistance
  • Ensure compatibility with vacuum, optical, and high-voltage applications

We process both green body (pre-fired) and sintered (post-fired) ceramic parts with minimal material loss and maximum finish quality.

Materials We Process

Material Highlights Popular Applications
Alumina (Al₂O₃) High hardness, excellent insulation Insulators, electronics substrates
Zirconia (ZrO₂ / ZTA) High toughness, wear resistance Structural components, housings
Silicon Nitride (Si₃N₄) Thermal shock resistance, high strength Bearings, engine parts, crucibles
Silicon Carbide (SiC) Ultra-hard, chemical resistance High-temp and corrosive environment parts
Aluminum Nitride (AlN) High thermal conductivity, insulation Thermal management, semiconductor tools
Boron Nitride (BN) Dry-lubricant, high-temp insulation High-temp bearing & insulation parts
Beryllium Oxide (BeO) Exceptional thermal and electrical traits RF electronics, heat spreaders
Machinable Glass Ceramic Easy to machine, ideal for prototyping Prototyping intricate structural parts

Our Ceramic Machining & Polishing Capabilities

Capability Feature Typical Tolerance Surface Finish
Surface grinding & polishing Flatness and parallelism control within microns

Ideal for ceramic wafers, plates, thermal isolators

 ±0.002 mm Ra0.02 μm
Cylindrical and ID/OD Grinding

Precision outer and inner diameter finishing

Used for shafts, sleeves, pistons, and rods

 ±0.002 mm Ra0.02 μm
Centerless grinding & polishing

High-throughput ceramic rod diameter control

Excellent repeatability and production efficiency

 ±0.001 mm Ra＜0.02 μm
Fine Grinding & Lapping

Achieve sub-micron tolerance and ultra-flatness

Perfect for bonding surfaces, optical windows, and sealing rings

 ±0.001 mm Ra＜0.02 μm

Why Choose Great Ceramic?

We’re more than just a machining service provider—we are your trusted partner for advanced ceramic part fabrication. Here’s what sets us apart:

  • CNC grinders, diamond wheels, polishing lines

  • Surface finishes down to < 0.01 μm

  • From pre-fired machining to final polishing

  • From prototypes to large-volume runs

  • Material selection, precision machining, QA, and delivery

Mirror-polished ceramics
  • Mirror effect
  • Ra≤0.02um
  • Flatness≤0.005mm

Customer Use Cases

Grinding and polishing case-Zirconium oxide ceramic ring

“Great Ceramic helped us achieve optical-level polishing on customized zirconia rings for a semiconductor laser. The dimensional consistency was excellent even at volume.”

R&D Manager, Optoelectronics Manufacturer
Grinding and polishing case-Zirconium oxide ceramic ring

“We rely on Great Ceramic for polishing our medical-grade alumina parts—they consistently meet FDA cleanliness requirements.”

Medical Device Engineer

Frequently Asked Questions

A1: We routinely achieve Ra < 0.01 μm for materials like zirconia and alumina. For applications like optical reflectors or medical implants, we can meet even stricter specifications.

A2: Yes. We specialize in post-fired ceramic machining and polishing, offering dimensional correction and mirror finishing for sintered parts.

A3: Absolutely. We support both R&D prototypes and mass production, with fast turnaround and engineering consultation.

A4: Zirconia, alumina, silicon carbide, machinable glass ceramic (MGC), and silicon nitride are our most frequently processed materials.

Ready to Elevate Your Ceramic Components?

Whether you’re developing next-gen electronics, precision medical devices, or aerospace-grade insulation, Great Ceramic is your trusted partner in advanced ceramic grinding and polishing.

Get in Touch Today

Need high-precision ceramic grinding, polishing, or CNC ceramic machining?
Contact us now to discuss your project—we’re ready to assist from concept to completion.