SKU: 73202744541

20mm Focal Focus Lens by American Photonics for Up To 200W Laser Engraver Cutter

Sale price$68.39 Regular price$75.99
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

20mm Focal Focus Lens by American Photonics for Up To 200W Laser Engraver CutterAdvanced Specifications: Anti reflective coated lens for <200W. Type: Meniscus Laser Focal Lens Material: Znse Laser Grade(made in the USA) Coating: 10. 6um (AR Both Side) 20mm Diameter 2mm Edge Thickness Diameter Tolerance: +0 0. 13mm Center Thickness Tolerance: 0. 1mm Focal Length Tolerance: < 1% Clear Aperture: >= 90% Diameter Scratch Dig: 40 20 Cutting Edge Features: OMTECH TESTED: Each American Photonics focal lens is tested on OMTech machines

Advanced Specifications:

  • Anti-reflective coated lens for <200W.
  • Type: Meniscus Laser Focal Lens
  • Material: Znse Laser Grade(made in the USA)
  • Coating: 10.6um (AR Both Side)
  • 20mm Diameter
  • 2mm Edge Thickness
  • Diameter Tolerance: +0/-0.13mm
  • Center Thickness Tolerance: ± 0.1mm
  • Focal Length Tolerance: < 1%
  • Clear Aperture: >= 90% Diameter
  •  Scratch/Dig: 40-20

Cutting Edge Features:

  • OMTECH TESTED: Each American Photonics focal lens is tested on OMTech machines and approved by our laser specialists.
  • QUALITY ZINC SELENIDE: Manufactured with premium zinc selenium via chemical vapor deposition for superior light transmission and heat tolerance.
  • EXACTING LENS DIMENSIONS: Each lens is engineered and built with only a 0.003mm margin for error to ensure finer laser focus on high-resolution engravings and enable sharper cutting abilities.
  • ULTRA-PURE MANUFACTURING: American Photonics utilizes an ultra-clean production room to ensure every focal lens is free from all impurities, reducing heat damage and ensuring extremely consistent laser beam transmission.
  • HANDMADE IN THE USA: Each American Photonics focal lens is cored, polished, edged, coated, and packaged by hand with expert precision in each step.
  • EXTREME HEAT TOLERANCE: Crafted to resist heat damage, cracking, and staining. A melting point of 2777°F (1525°C) easily withstands the thermal demands of CO2 laser applications.
  • SUPERIOR LIGHT TRANSMITTANCE: Both sides are carefully coated with a strongly anti-reflective finish optimized for infrared light at a wavelength of 10.6 microns.
  • LASTING DURABILITY: Our laser engraver focus lenses' double-sided coating process ensures outstanding scratch resistance for longer service life.
  • WIDE COMPATIBILITY: This laser focus lens is designed to work with all CO2 laser engravers below 200W. Please check the focal lens diameter in your machine’s manual before purchasing.

 

Summary:

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.

How to Select the Proper Focal Length:

A lens with a shorter focal length (1.5"–2.5")  has a smaller focal point to provide sharper details for high-resolution images. A longer focal length (usually up to 4") has a larger focal point and extended depth of focus (or focus tolerance) which is better suited for cutting applications. Also, keep in mind that using longer focal lengths subtract from your workbed’s Z-depth.

Warranty:

  • American Photonics provides a 30-Day 100% Guarantee

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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: 73202744541

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Cmark
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★★★★★ 5
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My dog loves the Benebone especially when he is bored. He loves the chicken one the best. When the edges start to splinter or get rough, we get him a new one.
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My Dog Is Obsessed — Long-Lasting and Worth Every Penny
The Benebone Wishbone is hands-down one of my dog’s favorite chew toys. He cannot get enough of it. The real chicken flavor keeps him interested, and the wishbone shape gives him a solid grip from any angle. What stands out is the durability. My dog is a strong chewer, and this thing holds up far better than most toys on the market. No soft spots, no chunks breaking off, and no mess—just a tough, long-lasting chew that keeps him busy. Made in the USA is a bonus, and the medium size works great for a wide range of breeds. If you’ve got an aggressive chewer or a dog who goes nuts for flavored bones, this one is absolutely worth having in the rotation.
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Reviewed in the United States on November 24, 2025
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Lott
Louisville, US
★★★★★ 4
Great dog chew lasts a while, enjoyed by most every dog
These bones are great for a few small, yet significant reasons. Bottom line up front: They're great and a dog owner would be well served to pick up one or two of these as a long term chew toy your dog is almost sure to love. 1) The first being the odd shape of the bones. The shape enables the dog to pick up the bones with ease rather than some of the more flat bones or chews which can lead to a struggle and frustration. The three prongs and the elevated middle portion alleviate this concern. 2) These bones aren't ground material shaped into a bone shape, they are tough, plastic-like substances. They have a very subtle aroma of the flavor they are supposed to be (bacon, chicken, etc) but are completely safe for the dogs to munch on. The best part of the bones being this substance is that they last quite a long time. 3) The bones are lightweight and won't hurt you if you stub your toe as you walk around the house barefoot. 4) Dogs seem to love them. Only the most picky or reclusive dogs will ignore these bones.
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Reviewed in the United States on September 30, 2015
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Danielle
Omaha, US
★★★★★ 5
Good size, lasts a long time
Dog likes these. She has her moments when this is only chew toy she wants, and spends days gnawing on it. She likes these bacon and chicken flavors. I like the fact that there is no squeak. This is a good size for full size Aussie, and I also like that she doesn’t “throw” these at me, she lays on the couch or floor and chews. They help to keep her teeth clean from plaque and tartar, so to me they are very functional. This is 4th or 5th buy again, so I wouldn’t buy again if she didn’t like. It does take a while for her to chew to point of needing new, since I keep variety of chew toys for her.
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Reviewed in the United States on January 18, 2026
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Jazzlynn
Port Orchard, US
★★★★★ 5
Great chew
My pup’s favorite, great quality and it doesn’t give him a tummy ache. Lasts a good while and keeps him occupied.
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