--- product_id: 28566370 title: "CO2 Laser Lens Dia:12mm FL:2\" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W" brand: "cncoletech" price: "ΰΈΏ2991" currency: THB in_stock: true reviews_count: 13 category: "Cncoletech" url: https://www.desertcart.co.th/products/28566370-co2-laser-lens-dia-12mm-fl-2-or-50-8mm store_origin: TH region: Thailand --- # 40W-200W power compatible 12mm diameter, 50.8mm focal length β‰₯99.8% transmittance CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W **Brand:** cncoletech **Price:** ΰΈΏ2991 **Availability:** βœ… In Stock ## Summary > 🎯 Sharpen your laser game with pinpoint precision and unstoppable power! ## Quick Answers - **What is this?** CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W by cncoletech - **How much does it cost?** ΰΈΏ2991 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/28566370-co2-laser-lens-dia-12mm-fl-2-or-50-8mm) ## Best For - cncoletech enthusiasts ## Why This Product - Trusted cncoletech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Wide Power Compatibility:** Seamlessly supports 40W to 200W CO2 laser systems for versatile professional applications. - β€’ **Maximized Laser Efficiency:** Smaller focused spot size concentrates energy for faster, cleaner engraving and cutting. - β€’ **Precision Engineered Optics:** High-class CVD ZnSe material ensures ultra-stable laser performance and longevity. - β€’ **Durable Double-Sided Coating:** Advanced solid coating resists heat and wear, extending lens life under heavy use. - β€’ **Optimized for Professional Use:** Perfectly sized 12mm diameter and 50.8mm focal length for precision K40 laser engravers. ## Overview The CNCOLETECH CO2 Laser Lens features premium CVD ZnSe material with β‰₯99.8% transmittance, designed for 40W-200W CO2 laser systems. Its 12mm diameter and 50.8mm focal length deliver a concentrated laser spot for superior engraving and cutting efficiency. Double-sided solid coatings enhance durability and heat resistance, making it an essential upgrade for professional laser engraving and cutting setups. ## Description Product description Parameters Attentions Double-sided solid coating, wiping resistant, extended durability, precision slicing polishing and grinding processes, high temperature laser resistance, excellent optical properties, high working efficiency. Laser transmittance can be as high as 99.8%. Normally, the short focal length is suitable for engraving. If used for cutting, we suggest to work with long focal length. Causes of lens broken and tips (1) Ensure that the air cooling is good, otherwise the temperature will be too high and the lens will overheat and crack (2) There are condensation water drops in the lens barrel, which may cause the lens to break. (3)The lens is stuck or pollute with the jets of the cut or engrave material, Uneven heating for a long time is easy to cause broken. It should be cleaned with cotton ball dipped in absolute alcohol or acetone in time. (4) When adjusting the light path, the light path is not correct, the laser accidentally hit the edge of the lens and the junction of the lens barrel, resulting in broken. About Lens Shape Focal length is the distance between the lens and the workpiece(material being cut or engraved). Before replace or install the lens, please confirm the diameter and focal length firstly. It is recommended to use convex upward, flat or concave facing the engraving or cutting material. Laser Lens and Laser Mirrors PVD ZnSe Laser Lens CVD ZnSe Laser Lens GaAs Laser Lens Si Laser Mirror Mo Laser Mirror Cu Laser Mirror Review: Good quality! Amazing for tumblers with tabs for removable handles!! - I have only had my new lens for about a week and it's making a world of difference for my laser engraving business! I highly recommend this product!! Works great for tumblers with tabs for handle. UPDATE!: I have had the lens for about 10 months and the coating has started to flake off. Honestly I'm not really upset about it as it is only a $30 replacement part. Overall I am still happy with this lens! Review: Great Product Fast Delivery - Was literally burning through lenses left and right. Contacted manufacturer and they pointed me towards this lens. Such a difference in quality and performance when you have the right lens! If you have a CO2 Laser, this is the focal lens you need! My machine manufacturer wouldn't list the specs for replacement lenses because they want to sell to you after market parts. (Not mentioning names, but rhymes with Jonport. Due to other quality issues with this machine I vowed to NEVER spend another dime with that company. So I needed an outside source for replacement parts) Thanks! ## Features - Material: High class CVD Znse material (US II-VI). High-quality materials ensure more stable laser system; excellent High-Power density endurance. Compatible power: 40W-200W. - Diameter: 12mm/0.47"; Focal Length: 50.8mm/2"; Thickness:2.0-2.2mm/0.08"; Transmittance: β‰₯99.8%. - Exquisite Process: Superb Double-sided solid coating, increase service life, precision slicing, polishing and grinding process, Reduced laser loss, wiping resistant, high temperature resistance, excellent optical properties, high working efficiency. - High efficiency: CVD ZnSe Laser Focus Lens has smaller focusing spot size, the energy is more concentrated, making the CO2 laser engraving, cutting machine more efficient. - Usage: CO2 replacement laser lens are mainly used in CO2 laser engraving and cutting well. - Lens Shape: Plano-convex( some meniscus shape may mixed together when manufacturing, but it is the same effect as Plano-convex shape). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DP2HXYA | | Best Sellers Rank | #52,614 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #110 in Jewelry Making Engraving Machines & Tools | | Brand | CNCOLETECH | | Brand Name | CNCOLETECH | | Color | Dia: 12mm Fl:2"/50.8mm | | Customer Reviews | 4.7 out of 5 stars 465 Reviews | | Item Weight | 0.02 Kilograms | | Manufacturer | Shanghai Top Nine Industrial Co.,Ltd | | Manufacturer Part Number | LM-26-12508 | | Material | CVD ZnSe | | Material Type | CVD ZnSe | | Model Number | LM-26-12508 | | Operation Mode | Automatic | | Style | CVD ZnSe Lens | | Style Name | CVD ZnSe Lens | | UPC | 642337973574 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** CNCOLETECH - **Color:** Dia: 12mm Fl:2"/50.8mm - **Item Weight:** 0.02 Kilograms - **Material:** CVD ZnSe - **Style:** CVD ZnSe Lens ## Images ![CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W - Image 1](https://m.media-amazon.com/images/I/51ZDozGaycL.jpg) ![CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W - Image 2](https://m.media-amazon.com/images/I/71zmtC6H3DL.jpg) ![CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W - Image 3](https://m.media-amazon.com/images/I/71hIYYZf1nL.jpg) ![CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W - Image 4](https://m.media-amazon.com/images/I/5148Vk-CBiL.jpg) ![CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W - Image 5](https://m.media-amazon.com/images/I/81QCH8q+IWL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality! Amazing for tumblers with tabs for removable handles!! *by C***R on November 25, 2024* I have only had my new lens for about a week and it's making a world of difference for my laser engraving business! I highly recommend this product!! Works great for tumblers with tabs for handle. UPDATE!: I have had the lens for about 10 months and the coating has started to flake off. Honestly I'm not really upset about it as it is only a $30 replacement part. Overall I am still happy with this lens! ### ⭐⭐⭐⭐⭐ Great Product Fast Delivery *by J***E on September 25, 2024* Was literally burning through lenses left and right. Contacted manufacturer and they pointed me towards this lens. Such a difference in quality and performance when you have the right lens! If you have a CO2 Laser, this is the focal lens you need! My machine manufacturer wouldn't list the specs for replacement lenses because they want to sell to you after market parts. (Not mentioning names, but rhymes with Jonport. Due to other quality issues with this machine I vowed to NEVER spend another dime with that company. So I needed an outside source for replacement parts) Thanks! ### ⭐⭐⭐⭐⭐ I’d recommend this lens *by C***J on July 5, 2025* Works great for my laser cutter and it’s a good price. ## Frequently Bought Together - CNCOLETECH CO2 Laser Lens Dia:12mm FL:2" or 50.8mm Laser Mirror CVD ZnSe Focus Focal Lens K40 Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W - CNCOLETECH 20mm CO2 Laser Mirror Si Reflective Lens CO2 Laser Lens Si Gold-coated Laser Mirrors Dia 20mm 3PCS for CO2 Laser Machine - Cloudray 12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/28566370-co2-laser-lens-dia-12mm-fl-2-or-50-8mm](https://www.desertcart.co.th/products/28566370-co2-laser-lens-dia-12mm-fl-2-or-50-8mm) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-05-29*