Raytools Ceramic Ring D28-H12-M11 For Laser Cut Head

✅ Made of high-purity alumina ceramic, it is resistant to high temperatures and thermal shock, and is less prone to cracking or chipping during prolonged operation.
High precision and excellent concentricity ensure that the nozzle remains aligned with the laser beam path, resulting in stable cutting performance.
✅ Built-in metal sensing contacts provide sensitive signal transmission, effectively preventing false alarms caused by abnormal nozzle height.
✅ Dimensions are fully compatible with Raytools BT220/BM114/BM115/BS06K cutting heads, allowing for direct replacement of original parts
✅ Excellent insulation properties resist arc sparking, reducing ceramic body damage caused by burning during perforation or blow-through
✅ Dense, smooth surface resists slag adhesion, extending service life

Specifications:

Outer Diameter (Top)    28 mm
Outer Diameter (Bottom)    24.5 mm
Total Height    12 mm
Internal Thread    M11
Material    High-purity alumina ceramic (Al₂O₃ ≥95%)
Compatible Nozzle Thread    M11

Compatible with BT220/BM114/BM115/BS06K/BM06K