CO2 Lens Laser Mirror CVD ZnSe Focus Focal Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W (Dia: 20mm FL:2"/50.8mm)

★Attentions::✔Double-sided solid coating, wiping resistant, extended durability, precision slicing polishing and grinding processes, high temperature laser resistance, excellent optical properties, high working efficiency. Laser transmittance can be as high as 99.8%.✔Normally, the short focal length is suitable for engraving. If used for cutting, we suggest to work with long focal length.✔Causes of lens broken and tips:Ensure that the air cooling is good, otherwise the temperature will be too high and the lens will overheat and crackThere are condensation water drops in the lens barrel, which may cause the lens to break.The lens is stuck or pollute with the jets of the cut or engrave material, Uneven heating for a long time is easy to cause broken. It should be cleaned with cotton ball dipped in absolute alcohol or acetone in time.When adjusting the light path, the light path is not correct, the laser accidentally hit the edge of the lens and the junction of the lens barrel, resulting in broken.★Product Parameter:Material:CVD Znse/ ll-VI ZnseTransmittance:≥99.8%Diameter Tolerance:+0 / -0.13mmThickness Tolerance:±0.25mmFL Tolerance:<±2%Centration:<3 arc minutesClear Aperture:>90%Surface Figure:AR/AR Coating:R<0.5% per surfaceCompatible Power:40W-200W★Package Includes:Protective lenses * 1★Note:Due to the difference between different monitors, the picture may not reflect the actual color of the item.

• Material: High class CVD ZnSe material. High-quality materials ensure more stable laser system; excellent High-Power density endurance. Compatible power: 40W-200W.
• Diameter: 20mm/0.79"; Focal Length:50.8mm/2"; Thickness:2.0-2.2mm/0.08"; Transmittance: ≥99.8%.
• Exquisite Coating Process: Superb Double-sided solid coating, increase service life, precision slicing, polishing and grinding process, Reduced laser loss, wiping resistant, high temperature resistance, excellent optical properties, high working efficiency.
• High efficiency: CVD ZnSe Laser Focus Lens has smaller focusing spot size, the energy is more concentrated, making the CO2 laser engraving, cutting machine more efficient.
• Usage: CO2 replacement laser lens are mainly used in CO2 laser engraving and cutting well.