セラミック研磨

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.

セラミック研磨

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

素材 ハイライト 人気のアプリケーション
アルミナ（Al₂O₃） 高硬度、優れた絶縁性 絶縁体、電子基板
ジルコニア（ZrO₂ / ZTA） 高い靭性、耐摩耗性 構造部品、ハウジング
窒化ケイ素 (Si₃N₄) 耐熱衝撃性、高強度 ベアリング、エンジン部品、るつぼ
炭化ケイ素（SiC） 超硬質、耐薬品性 高温および腐食性環境部品
窒化アルミニウム（AlN） 高い熱伝導性、断熱性 熱管理、半導体ツール
窒化ホウ素（BN） 乾式潤滑、高温絶縁 高耐熱ベアリング＆絶縁部品
酸化ベリリウム (BeO) 優れた熱特性と電気特性 RFエレクトロニクス、ヒートスプレッダー
機械加工可能なガラス・セラミック 機械加工が容易で、試作に最適 複雑な構造部品の試作

Our Ceramic Machining & Polishing Capabilities

Capability 特徴 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

グレート・セラミックを選ぶ理由

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

よくある質問

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 今日

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.