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🎯 Sharpen your laser’s focus, cut through limits!
The CNCOLETECH CVD II-VI ZnSe Focus Lens (20mm diameter, 63.5mm focal length) is crafted from premium US II-VI ZnSe material, delivering ≥99.8% transmittance and exceptional durability with double-sided solid coating. Designed for CO2 laser systems between 40W and 200W, it offers a smaller spot size for enhanced cutting and engraving precision, making it the go-to upgrade for professionals seeking efficiency and reliability in their laser workflows.










| ASIN | B01DP2HGYM |
| Best Sellers Rank | #205,580 in Home Improvement ( See Top 100 in Home Improvement ) #4,037 in Power Tools |
| Brand | CNCOLETECH |
| Brand Name | CNCOLETECH |
| Colour | Fl:2.5"/63.5mm |
| Customer Reviews | 4.7 out of 5 stars 66 Reviews |
| Item Weight | 0.03 Kilograms |
| Manufacturer | Shanghai Top Nine Industiral Co.,Ltd |
| Manufacturer Part Number | IIVI-20-635 |
| Material | ZnSe |
| Material Type | ZnSe |
| Model Number | IIVI-20-635 |
| Operation Mode | Manual |
| Style | Laser |
| Style Name | Laser |
| Unit Count | 1.0 Count |
J**N
Performance
Fantastic lens- works great
J**E
150W+ Just fine
I use this in my 20mm 2.5" head for my machine and it does just fine cutting at 150w. It actually had a smaller spot size than the factory original. cleans easily (if done regularly) However, the focus point may not actually be exactly 2.5". I kept checking line width with an engraving test till I got the height just right and I use that as my set point for engraving and about 1mm lower (1/32" for you imperials out there) for cutting thicker materials. I regularly slice 6mm ply and MDF with no issues at about 125w.
D**D
gran pieza
buen material
C**Z
Excellent Product.
Sirvió sin ningún inconveniente.
A**R
Burnt Out Within a Couple of Weeks
I bought 2 500w lenses for a 300w CO2 machine and within 2 weeks of using these lenses, they cracked and have become useless. These were NOT cheap lenses either
Trustpilot
2 weeks ago
2 months ago