--- product_id: 161324267 title: "MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4\" 101.6mm" brand: "mcwlaser" price: "372.30 DT" currency: TND in_stock: true reviews_count: 13 category: "Mc Wlaser" url: https://www.desertcart.tn/products/161324267-mcwlaser-cvd-ii-vi-znse-lens-co2-laser-engraver-cutter store_origin: TN region: Tunisia --- # 99.8% laser transmittance Compatible with 30W-200W CO2 lasers Double-sided solid coating MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4" 101.6mm **Brand:** mcwlaser **Price:** 372.30 DT **Availability:** βœ… In Stock ## Summary > πŸ”¬ Elevate your laser game with precision optics that professionals trust! ## Quick Answers - **What is this?** MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4" 101.6mm by mcwlaser - **How much does it cost?** 372.30 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/161324267-mcwlaser-cvd-ii-vi-znse-lens-co2-laser-engraver-cutter) ## Best For - mcwlaser enthusiasts ## Why This Product - Trusted mcwlaser brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last:** Double-sided solid coating ensures wiping resistance and extended durability under high-heat conditions. - β€’ **Effortless Maintenance:** Designed for easy cleaning and longevityβ€”just a quick wipe with alcohol keeps your lens performing like new. - β€’ **Optimized Focal Length:** 4-inch (101.6mm) focal length tailored for precise cutting applications, maximizing efficiency and accuracy. - β€’ **Crystal-Clear Precision:** Experience near-perfect 99.8% laser transmittance for razor-sharp engraving and cutting. - β€’ **Powerhouse Compatibility:** Seamlessly works with CO2 laser systems from 30W up to 200W, covering all your professional needs. ## Overview The MCWlaser CVD II-VI ZnSe Lens is a high-performance CO2 laser focus lens featuring a 20mm diameter and 4-inch focal length, optimized for 30W to 200W laser engraver cutters. Its double-sided solid coating offers exceptional durability and wiping resistance, while delivering an impressive 99.8% laser transmittance for superior cutting and engraving precision. Engineered for professional-grade efficiency and easy maintenance, this lens is a must-have upgrade for serious makers and industrial users. ## Description Product Description Attention 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 laser lens of focal length 38.1mm and 50.8mm is suitable for engraving.If used for cutting, we suggest to work with the laser lens of focal length 63.5/76.2/101.6/127mm 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. Parameters Tips 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. Usually one co2 laser engraver needs 1 pcs focus lens and 3 pcs reflective mirrors. Lens shape: 50.8mm/2 " and 63.5mm/2.5" FL are plano convex or meniscus; 127mm/5 " FL is meniscus; other FL (38.1/1.5", 76.2mm/3 ", 101.6mm/4") is plano convex. The above is the default shape. If you have special needs, we can customize it. Please send us message. Application CO2 laser focus lens is used in CO2 laser engraving/cutting machines. Review: Good Item with Fast Delivery - Good Item with Fast Delivery Review: Easy to fit replacement (curved surface up) - Good replacement for original stock lens seems to be better than original. ## Features - II-VI Znse coating 10600nm - ET=2.3mm - Diameter: 20mm,Focal length: 4" 101.6mm - Work perfect with 30W -200W CO2 laser engraver cutter. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07M7DGX26 | | Best Sellers Rank | 95,696 in DIY & Tools ( See Top 100 in DIY & Tools ) 69 in Engraving Tools | | Brand | MCWlaser | | Colour | Yellow | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 335 Reviews | | Manufacturer | Shanghai Top Nine Industrial Co.,Ltd | | Material | Zinc Selenide | | Model Number | LM1-26-20100 | | Operation Mode | Manual | | Operation mode | Manual | | Part Number | LM1-26-20100 | | Style | Laser | | UPC | 671875157818 671875154664 | ## Product Details - **Brand:** MCWlaser - **Colour:** Yellow - **Material:** Zinc Selenide - **Operation mode:** Manual - **Style:** Laser ## Images ![MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4" 101.6mm - Image 1](https://m.media-amazon.com/images/I/51Pz9AYZWsL.jpg) ![MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4" 101.6mm - Image 2](https://m.media-amazon.com/images/I/61H++Pjp16L.jpg) ![MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4" 101.6mm - Image 3](https://m.media-amazon.com/images/I/61UuAw+ipAL.jpg) ![MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4" 101.6mm - Image 4](https://m.media-amazon.com/images/I/61rzapB9PKL.jpg) ![MCWlaser CVD II-VI ZNSE Lens CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W Dia: 20mm FL: 4" 101.6mm - Image 5](https://m.media-amazon.com/images/I/61AqECzF6LL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Item with Fast Delivery *by D***. on 15 August 2023* Good Item with Fast Delivery ### ⭐⭐⭐⭐⭐ Easy to fit replacement (curved surface up) *by K***H on 18 May 2021* Good replacement for original stock lens seems to be better than original. ### ⭐⭐⭐⭐⭐ Good value, good fit. *by G***Y on 14 September 2020* Lens worked well in my k40 and there where no fitment issues. Slightly better cut but can't say huge improvement over the stock, perhaps just got a better stock lens. ## Frequently Bought Together - MCWlaser CVD ZnSe Focus Lens Dia: 20mm FL:4"/ 101.6mm for CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W - Cloudray CO2 Laser Lens 20mm Mirror, ZnSe for CO2 Laser Engraving/Cutting, 40W-200W, Dia 20mm FL101.6mm --- ## 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.tn/products/161324267-mcwlaser-cvd-ii-vi-znse-lens-co2-laser-engraver-cutter](https://www.desertcart.tn/products/161324267-mcwlaser-cvd-ii-vi-znse-lens-co2-laser-engraver-cutter) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-16*