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cloudray usa cvd znse focus lens: 15mm diameter, 38.1mm focal length for 10.6um co2 laser engraver cutter (40w-200w) logo

Cloudray USA CVD ZnSe Focus Lens: 15mm Diameter, 38.1mm Focal Length for 10.6um CO2 Laser Engraver Cutter (40W-200W) Review

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
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Description of Cloudray USA CVD ZnSe Focus Lens: 15mm Diameter, 38.1mm Focal Length for 10.6um CO2 Laser Engraver Cutter (40W-200W)

High Quality ZnSe Crystal: USA CVD ZnSe Material. Excellent Optical Properties. Up to 500W CO2 Laser Resistance. Superb Coating Process: Double-sided Solid Coating. Wiping Resistance. Long Working Life. High Precision Process: Excellent Substrate. Precision Slicing, Polishing, Grinding Processes. High Temperature, Laser Resistance. High Transmittance: High Quality Material and Exquisite Coating to reduce the loss of laser.Laser Transmittance Up To 99.5%. Higher Work Efficiency. Usage: replacemeny DIY part for CO2 laser engraving, cutting & marking machine & CO2 laser head.

Reviews

Global ratings 3
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  • 4
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  • 3
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Type of review

Revainrating 5 out of 5

At least as good as the original

I am very happy with this lens, it even seems a bit sharper than the one that came with my laser. I'm impressed with how well it works and replacing an old damaged lens was pretty easy. All in all, costing almost 70% less than what the laser manufacturer charges for an exchange, this is a real steal.

Pros
  • Excellent coating process: continuous coating on both sides. wipe resistance. Long life
Cons
  • Little things

Revainrating 5 out of 5

Great interchangeable lens!

So far, this lens has outlasted the standard lens it replaced. So far no problem. This thing is also very durable! My cleaning ritual is probably not the best but every other day I clean the lens and mirrors with a cotton swab and 90% isopropyl alcohol and I'm surprised it helps with no scratches etc! He also gets a minimum of 2-6 hours of work per day.

Pros
  • High Transmittance: High quality material and exquisite plating to reduce laser loss. Laser transmittance up to 99.5%. Better performance
Cons
  • Obsolete model

Revainrating 5 out of 5

Lens is much better than standard K40

Bought this to replace the standard lens in my K40 laser in addition to Si mirrors, and was impressed with the results. I had never heard of the Cloudray company but decided to take a chance as this lens was slightly cheaper than its counterparts (which also had names I hadn't seen). If this lens is indeed the CVD ZnSe advertised then the price (I paid 20) is pretty good. I've definitely seen a significant improvement in cutting/engraving performance over the standard lens and it's held up well

Pros
  • Use: Spare part for DIY CO2 laser engraving cutting and marking machine and CO2 laser head
Cons
  • Very expensive