CNCOLETECH 20mm CO2 Laser Lens, Laser Mirror PVD ZnSe Focus Lens 50.8mm / 2" Focal for CO2 Laser Engraver Cutting Cutter
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This item is eligible for return within 30 days of receipt
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Availability:
15 left in stock
Arrives
Tuesday, Jun 3
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Size: Dia:20mm FL:50.8mm/2"
Features
- Material: Hight quality PVD Znse crystal material
- Diameter:20mm/0.79";Focal Length:50.8mm/2";Thickness:2.2-2.3mm;Transmittance: 99.5%
- Double-sided solid coating,Wiping resistant,Extended durability,Precision slicing polishing and grinding processes,High temperature laser resistance,Excellent optical properties,High working efficiency.
- It's good for 40W/50W/80W/100W/130W/150W CO2 laser 10600nm 10.6um
- It can be used for CO2 laser engraving and cutting well.
Brand: CNCOLETECH
Style: Laser
Operation Mode: Automatic
Package Dimensions: 3.82 x 3.39 x 0.91 inches
Item model number: 905211
Is Discontinued By Manufacturer: No
Item Weight: 0.95 ounces
Manufacturer: Shanghai Top Nine Industrial Co.,Ltd
Country of Origin: China
Date First Available: May 9, 2016
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 3
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: Dia:20mm FL:50.8mm/2"
This lens is fantastic. I've been using much more expensive lenses in my laser cutter but no more. This lens out cuts and out engraves the pricier ones. Honestly, when I first got it I wasn't too impressed. Although it was very well packaged, the lens appeared to be a little cloudy and I really didn't expect much out of it. However, once I got it in my machine it performed better than I ever would have imagined. I won't be going back to my old lenses.
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Reviewed in the United States 🇺🇸 on May 30, 2023 by Rich
Size: Dia:20mm FL:50.8mm/2"
Works great with my thermal camera for identifying possibly shorted smds. I 3d printed a mount found on thingiverse
Reviewed in the United States 🇺🇸 on June 16, 2023 by Brad Johnson Brad Johnson
Size: Dia:19mm FL:50.8mm/2"
I used this 19mm ZrSe lens in an Epilog Fusion M2 120W CO2 laser. I really expected it to melt right away but it has done well at full power and 90% duty for quite a few cuts already - no noticeable issues yet! I was quoted almost $400 for a "legit" replacement, so like $25 seems too good to be true!
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Reviewed in the United States 🇺🇸 on April 26, 2023 by Steven Popenoe
Size: Dia:18mm FL:50.8mm/2"
Works great and packaged great
Reviewed in the United States 🇺🇸 on February 22, 2023 by GoToGirl
Size: Dia:18mm FL:50.8mm/2"
I bought the air assist that allows use of 18mm lens, so I gave this lens a shot, the price is decent and the spec. Looked not much different than the more expensive brands. Got it today with also the mirrors from The same sellers. So I installed it in my K40 laser engraver replacing the stock laser head with the new LO head with air assist with the new lens and mirror. InScrewed up the alignment at first, but after making some adjustment and set power to 10% and test it on a cardboard. BAM! It cut thru the cardboard in one pass while before it only leaves a line! Who knows, maybe the alignment was off before, but I definitely think the lens made a difference, for the quality of the coating on both the lens and mirror are better than the stock. It is a worthy upgrade, now marking on stainless turns out great, really helps serve the purpose of getting the K40 in the first place.
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Reviewed in the United States 🇺🇸 on February 17, 2020 by Sqoopi
Size: Dia:18mm FL:50.8mm/2"
The good news: Upon a quick inspection, the lens looked fine. It was a little hazy, but it cleaned up nicely with rubbing alcohol. The bad news: I ordered a 50.8mm focal length lens. The box I received had 50.8mm ticked on the label, but it was a 38mm focal length lens. Fortunately I'd seen a couple of reviews with similar issues, so I measured the focal length before installing it in my laser cutter. I already had a 38mm lens that came with it, so I sent this one back. Measuring the focal length of any converging lens (a lens that can focus a beam) is simple: (1) Make two slits in a thin box so you can slide a ruler straight through the box. Go outside and angle it so that the ruler doesn't cast any shadow on the box. (If you do this around noon, you can get close by standing the ruler straight up and down on a flat surface.) (2) Slide the lens up and down the ruler until you get the brightest/tiniest spot of sunlight on your box. (3) Measure the distance between your lens and the box* - this is the focal length of the lens. *Don't just read where the lens is on the ruler... you must subtract off where the ruler enters the box.
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Reviewed in the United States 🇺🇸 on August 11, 2020 by JP JP
Size: Dia:20mm FL:50.8mm/2"
Received it quickly, installed it, works great. I know where I am going to get the next one.
Reviewed in the United States 🇺🇸 on September 3, 2021 by David
Size: Dia:18mm FL:50.8mm/2"
The lens works great. It fits perfectly into a new laser head that I bought. Love it!
Reviewed in the United States 🇺🇸 on May 5, 2021 by Priscilla C.