Lower Laser Protective Lens for Laser Cutting Head D18×2

✅ JGS1 high-purity fused quartz substrate with excellent thermal stability; withstands thermal shock during prolonged continuous cutting at 15 kW and is resistant to cracking
✅ Double-sided hard AR anti-reflective coating with high transmittance at 1064 nm; minimizes laser energy loss to ensure cutting speed and cut-face quality
✅ Strong coating adhesion resists metal spatter and allows for light cleaning, reducing burn marks on the lenses and lowering the cost of frequent replacements
✅ Precision optical polishing with strict dimensional tolerances ensures stable coaxiality of the optical path, blocks molten slag, and protects internal focusing and collimating lenses
✅ Suitable for sheet metal processing of carbon steel, stainless steel, and aluminum—including thin, medium, and thick sheets—and is a cost-effective consumable commonly stocked in factories

Diameter: 18 mm
Thickness: 2 mm,

Compatible with SUP20S/20T/30S/21S/21T/23S/23T/28T/28F/29F