The D28-M11 professional nozzle holder (ceramic part) is a key consumable component of the cutting system in CNC laser cutters. Made of high-quality, dense technical ceramic, it offers excellent resistance to high temperatures and the mechanical vibrations that occur during the intense cutting process. The precisely machined M11 metal thread ensures perfect nozzle centering and a stable electrical connection, which directly contributes to the precision of the height sensor.

This insulator effectively prevents interference with the measurement signal caused by high temperatures, smoke, or metal spatter, protecting the cutting head from colliding with the material. The D28 size standard with an M11 thread is fully compatible with many popular Raytools Fiber cutting heads on the market (including the BT240S and BM109 series) as well as machines from manufacturers such as Gweike, Bodor, Senfeng, HSG, and many others.