Laser Ceramic Ring D21.4 M8 H13 Raytools OSPRI FC-40 3D Cutting
The D21.4 × M8 × H13 ceramic ring is a precision-engineered consumable for 3D fiber laser cutting systems, designed to electrically insulate the nozzle from the cutting head while ensuring accurate alignment in multi-axis cutting operations. This model serves as a reliable replacement for the Ospri FC-40 ceramic ring, delivering stable performance for complex 3D trajectories, bevel cutting, and angled processing. Its standardized dimensions support seamless installation across compatible cutting heads without modification.
Key Features
Produced from high-density technical ceramic, the ring offers excellent dielectric strength to prevent arc transfer and protect sensitive internal components. The precisely machined geometry ensures consistent nozzle centering, which stabilizes focal position and assist-gas flow during dynamic 3D movements. High thermal resistance minimizes heat-induced deformation, while superior mechanical strength reduces cracking risk under vibration and frequent head motion. The M8 interface provides secure fixation and repeatable positioning, supporting long service life in continuous industrial use.
Applications
This ceramic ring is suitable for 3D fiber laser cutting of carbon steel, stainless steel, aluminum alloys, and other conductive metals. It performs reliably in applications requiring bevel cuts, spatial contours, formed parts, tubes, and profiles, commonly used in metal fabrication, automotive components, structural parts, and automated production lines.
Compatible Laser Cutting Heads
Raytools: BT220, BM06K-3D, BD04K, BD08K, BS12K-3D, BS15K-3D
Ospri: LC312, LC40, LC218, LC80
Replacement Reference
– Ospri FC-40 ceramic ring
This D21.4 × M8 × H13 ceramic ring offers a cost-effective, high-reliability solution for maintaining cutting accuracy, electrical safety, and process stability in professional 3D fiber laser cutting environments.


