Laser ceramic ring is an important insulating and connecting component inside a fiber laser cutting head. It is typically installed between the laser nozzle and the cutting head body. Its functions include electrically isolating metal components, supporting the positioning of the nozzle assembly, and providing the electrical signal path for the capacitive height-following system. During cutting, the capacitive sensor detects changes in the distance between the nozzle and the metal workpiece and sends the sensing signal to the height control system, allowing the cutting head height to be adjusted in real time.
INNOVACERA’s ceramic laser nozzles combine an alumina ceramic body with a copper electrode. Alumina ceramic provides electrical insulation, mechanical strength, and high temperature resistance, supporting electrical isolation and mechanical support for components inside the cutting head. The integrated copper electrode provides the conductive connection and signal path for the capacitive sensor. Together, these materials meet the insulation, structural support and electrical connection requirements of fiber laser cutting head assemblies.
Product Advantages
- Good electrical insulation
- Good mechanical strength
- Integrated copper electrode structure
- High-precision CNC machining
- Wide range of industrial applications
Compatible Equipment and Product Types
Suitable for mainstream fiber laser cutting machines and cutting heads, including:
- Raytools
- Precitec
- WSX
- Bodor
- OSPRI
- Other universal fiber laser cutting heads
28 mm vs. 32 mm Structural Specifications
| Specification | D28-M11 | D32-M14 |
|---|---|---|
| Outer Diameter | 28 mm | 32 mm |
| Metal Part Diameter | 24.5 mm | 28.5 mm |
| Standard Thread | M11 | M14 |
| Height | Approx. 12 mm | Approx. 12 mm |
| Main Body Material | 99% high-purity alumina ceramic | |
| Applicable Power | 1000 W–20000 W | |
| Applicable Wavelength | 1064 nm | |
| Surface Treatment | Anti-Spatter & Anti-Oxidation / Gold-Plated (Premium) | |
| Common Compatibility | Precitec KT B2 CON P0571-1051-00001 | Empower Raytools Precitec KT B2 CON P0571-260-00001 |

Need Ceramic Rings for Your Fiber Laser Cutting Head?
If you are looking for ceramic rings for a fiber laser cutting head, contact INNOVACERA with your required dimensions, cutting head model, and order quantity. Our team will review your requirements and recommend a suitable product option.
Declaration: This is an original article of INNOVACERA®. Please indicate the source link when reprinting: https://www.innovacera.com/product/alumina-ceramic-rings-for-fiber-laser-cutting-heads
Frequently Asked Questions
Why Are Alumina Ceramic Rings Critical for Fiber Laser Cutting Heads? How Do They Prevent Capacitive Height Sensing Errors?
In 1kW–20kW fiber laser cutting, molten metal spatter and intense thermal radiation easily damage standard nozzle mounts, causing electrical short circuits and height-sensing signal drift. INNOVACERA’s laser ceramic rings combine a 99% high-purity alumina ceramic body with an integrated precision copper electrode. This hybrid structure maintains rigid mechanical positioning, provides complete electrical isolation between the nozzle and the head body, and ensures distortion-free signal transmission for the capacitive height tracking system, effectively preventing cutting head crashes during high-speed cutting.
Need Drop-In Replacements for Precitec or Raytools? Where Can You Buy D28 and D32 Laser Ceramic Rings?
You can buy standard D28-M11 and D32-M14 laser ceramic rings directly from INNOVACERA in Standard, Reinforced, and Gold-Plated configurations. Designed for plug-and-play compatibility with mainstream cutting heads like Precitec (e.g., P0571-1051-00001, P0571-260-00001), Raytools, WSX, and Bodor, our rings feature anti-spatter surface treatments and precision M11/M14 threads to handle laser powers up to 20,000W. Bulk OEM supply and custom dimensional variations are available upon request.