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The ceramic ring is an essential component in fiber laser cutting machines, especially those designed for cutting H beams and other metal profiles. It plays a crucial role in focusing the laser beam and directing the assist gas (such as oxygen, nitrogen, or air) towards the cutting zone. This helps in improving the cutting quality by ensuring a clean and precise cut.

1. Material: Ceramic rings are typically made from high-quality, heat-resistant ceramics that can withstand the intense heat generated during laser cutting.

2. Function: They hold the nozzle in place and guide the assist gas. The proper alignment and condition of the ceramic ring are crucial for consistent cutting performance.

3. Maintenance: Regular inspection and replacement of the ceramic ring are recommended, as wear and tear can affect the cutting precision and quality.