SKU: 19725726720

12mm CVD ZnSe Focal Focus Lens for 40W Laser Engraver Cutter

Sale price$24.29 Regular price$26.99
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

12mm CVD ZnSe Focal Focus Lens for 40W Laser Engraver CutterCutting Edge Features: HIGH QUALITY CVD ZnSe: OMTech's powerful focus lenses are manufactured from premium zinc selenium via chemical vapor deposition for superior optical properties. HIGH TRANSMITTANCE: Both sides of each lens are covered with strongly antireflective coatings to achieve at least 99. 5% transmittance rate for infrared light at a wavelength of 10. 6 microns. LASTING DURABILITY: Our laser engraver focus lenses' double sided coating

Cutting Edge Features:

  • HIGH-QUALITY CVD ZnSe: OMTech's powerful focus lenses are manufactured from premium zinc selenium via chemical vapor deposition for superior optical properties.
  • HIGH TRANSMITTANCE: Both sides of each lens are covered with strongly antireflective coatings to achieve at least 99.5% transmittance rate for infrared light at a wavelength of 10.6 microns.
  • LASTING DURABILITY: Our laser engraver focus lenses' double-sided coating process also ensures outstanding scratch resistance for longer service life.
  • K40 COMPATIBLE: This 12mm laser focus lens fits OMTech 40W CO2 laser engravers. Please check the focal lens diameter in your machine’s manual before purchasing.
  • EASY TO USE: The plano-convex shape of OMTech's engraver focal lens lets you install it easily and correctly onto your machine in the proper orientation. Detailed cleaning instructions also help you take proper care of your lens.

Specifications:

  • Material: Zinc Selenium
  • Color: Yellow
  • Diameter: 12mm (0.47")
  • Thickness: 2mm (0.08")
  • Focal Length: 1" (25.4mm)/ 2" (50.8mm)/ 3" (76.2mm)/ 4" (101.6mm)
  • Rec. Wavelength: 10.6 microns (10600 nm)
  • Min. Light Transmittance: 99.5%
  • Net Weight: 0.2 oz (5g)

Package Includes:

1 x CVD ZnSe Focus Lens

Warranty:

  • No need to worry! We offer a 1-year warranty on all focal lenses.

Certifications:

  • FDA Compliant
  • CE Certification
  • ISO9001 Quality Certification

Summary:

It is all smoke and mirrors! As you engrave, debris such as smoke and dust land on your focal lens, building up a layer of residue over time that absorbs laser beam power and can stain the lens permanently. Eventually, this lost power will affect your machine’s precision and throw off your laser settings. To keep your device running at its full potential, we recommend inspecting and cleaning the optics system once a week and replacing the mirrors or focal lens as soon they get damaged.

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19725726720

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Dee
Waukegan, US
★★★★★ 4
Great for aggressive chewers, but small mess
Size: Large (Pack of 1), Size: Large (Pack of 1)
He took it right away! It’s a great size. We’ll see how it holds up ONE MONTH UPDATE: (photo included) He loves it still! Still a bit messy but holding up great and he’s a aggressive chewer 1 WEEK UPDATE (photo update included) The bone is great. He loves it and it’s been holding up great. Our 8 month puppy is a super chewer and 60 lbs. the bone has signs of wear but nothing crazy. I went from 5 stars to 4 stars because whenever he chews the bone, the small tiny pieces of bone/wood go everywhere and they’re sticky/hard and make kind of a mess. But still would get this bone again and highly recommend
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Reviewed in the United States on December 16, 2025
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hellothere
Charlottesville, US
★★★★★ 5
Dog loves these
Size: X-Small (Pack of 1)
These are the best chew toys. They are reasonably priced and last a long while. Fast shipping.
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Reviewed in the United States on March 8, 2026
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Vanessa
San Leandro, US
★★★★★ 5
Made for aggressive chewers
Size: Small (Pack of 1)
My aggressive chewers are obsessed. This is one of the only chew toys that actually lasts for them. Always have to buy 2 so they each have their own
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Reviewed in the United States on February 28, 2026
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Jessica
Lake Worth, US
★★★★★ 5
My dogs love these sticks!
Size: Large (Pack of 1)
My dogs love these sticks! We buy them constantly because they chews on them daily and must stash them all over the house.
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Reviewed in the United States on May 29, 2026
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Amazon Customer
Natrona Heights, US
★★★★★ 3
Not interested
Size: Large (Pack of 1)
My dog is not very interested in it.
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Reviewed in the United States on May 13, 2026

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