| Standard Ceramic Wall Tile | 3–6 mm | Relatively porous clay body with a glazed or unglazed surface; lower density than porcelain. | Moderate to good for straight cuts and openings | Sealed CO₂ system with stable beam delivery, extraction, and a rigid motion platform. | Approximately 100–200 W continuous-wave CO₂ | Use low-to-moderate feed speed, air or inert-gas assistance where appropriate, and multiple passes for cleaner edges. | Glaze discoloration, edge chipping, localized thermal cracking, and dust contamination. |
| Glazed Ceramic Floor Tile | 6–10 mm | Denser body and harder surface than wall tile; the glaze may respond differently from the ceramic substrate. | Moderate; sample testing is essential | CO₂ laser with adjustable focus, closed-loop height control, fume extraction, and effective workholding. | Approximately 150–300 W continuous-wave CO₂ | Prefer several controlled passes rather than one aggressive pass; use masking or a sacrificial support surface when needed. | Glaze flaking, heat-affected marks, microcracks, and nonuniform penetration caused by body-density variation. |
| Unglazed Ceramic Tile | 5–10 mm | Open surface structure can absorb dust and moisture; the body is generally more tolerant of surface marking than a decorative glaze. | Moderate to good, depending on density | CO₂ laser with strong extraction, autofocus or height sensing, and a flat, low-vibration bed. | Approximately 150–300 W continuous-wave CO₂ | Use gradual energy input and inspect the underside for breakthrough quality; compressed air can help remove debris. | Powder buildup, porous-edge erosion, uneven kerf width, and breakage during unloading. |
| Porcelain Tile | 6–12 mm | Highly vitrified, low-absorption ceramic with high density and hardness; it usually requires more energy and better thermal control. | Limited to moderate for production cutting | High-stability CO₂ platform with precision focusing, multi-pass control, robust extraction, and active workpiece cooling where applicable. | Approximately 200–500 W continuous-wave CO₂, subject to testing | Use low heat accumulation per pass, controlled dwell time, and trial coupons to determine acceptable speed and overlap. | Thermal shock, hidden microcracks, chipped corners, and unacceptable backside breakout. |
| Porcelain Tile | 12–20 mm | Very dense and brittle fired body; some large-format products include reinforcement or internal stress from firing. | Difficult for full-depth laser cutting | Specialized high-power CO₂ or hybrid laser process only after application trials; a conventional engraving machine is generally unsuitable. | Typically above 300 W CO₂ for experimental full-depth work; power alone does not ensure quality. | Consider scoring, controlled multi-pass removal, water-assisted thermal management, or a laser-plus-mechanical finishing process. | Severe cracking, delamination, excessive heat-affected zones, slow throughput, and high scrap rates. |
| Decorative Ceramic Mosaic | 3–8 mm | Small-format pieces may have colored glazes, textured faces, mesh backing, or adhesive layers. | Moderate for individual pieces | CO₂ laser with precise low-power modulation, vision alignment, and separate settings for tile body and backing. | Approximately 60–150 W CO₂ for thin individual pieces, subject to composition | Test the face, edge, adhesive, and mesh separately; use extraction designed for adhesive and coating fumes. | Color change, adhesive smoke, mesh ignition, small-part movement, and inconsistent focus. |
| Large-Format Ceramic Slab | 6–12 mm | Large dimensions increase handling difficulty and may amplify vibration, flatness, and thermal-stress problems. | Moderate for detail work; challenging for full-length cuts | Large-format gantry, automatic height mapping, multiple support zones, high-capacity extraction, and calibrated beam alignment. | Approximately 200–500 W CO₂ for trials; final sizing requires material tests. | Verify flatness, clamp or support the slab uniformly, and use a staged cutting path to limit stress concentration. | Slab movement, corner fracture, long-cycle heat accumulation, alignment drift, and handling damage. |