--- product_id: 44827578 title: "Si Reflective Laser Mirror" brand: "cncoletech" price: "€ 73.15" currency: EUR in_stock: true reviews_count: 9 category: "Cncoletech" url: https://www.desertcart.fi/products/44827578-si-reflective-laser-mirror store_origin: FI region: Finland --- # 99.8% infrared reflectivity 20mm diameter precision 5-layer durable gold coating Si Reflective Laser Mirror **Brand:** cncoletech **Price:** € 73.15 **Availability:** ✅ In Stock ## Summary > ✨ Reflect your laser’s true potential with gold-grade precision! ⚡ ## Quick Answers - **What is this?** Si Reflective Laser Mirror by cncoletech - **How much does it cost?** € 73.15 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/44827578-si-reflective-laser-mirror) ## 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 - • **Vacuum-Sealed Packaging:** Each mirror is individually vacuum-packed to maintain pristine condition until installation—no oxidation, no compromise. - • **Versatile Compatibility:** Ideal replacement for K9 mirrors on popular K40 and other 40W laser cutters, instantly enhancing your machine’s output. - • **Maximized Laser Efficiency:** Reflectivity up to 99.8% at 10600nm minimizes power loss, boosting cutting precision and speed. - • **Precision Engineered 20mm Diameter:** Fits perfectly for 40-400W CO2 laser machines, ensuring seamless integration and optimal performance. - • **Ultra-Durable 5-Layer Gold Coating:** Gold-plated silicon with advanced multi-layer coating resists oxidation and corrosion for long-lasting reliability. ## Overview This 20mm gold-coated silicon CO2 laser mirror kit features a 5-layer durable coating and 99.8% infrared reflectivity, designed for 40-400W laser machines. Vacuum-sealed for oxidation protection, these mirrors deliver enhanced laser efficiency and longevity, making them the go-to upgrade for professional-grade laser cutting and engraving. ## Description Product description Si reflective mirrors are made by multiple processes; Superb coating art, precision slicing polishing and grinding processes, excellent optical properties, high working efficiency, long working life. Reflective lenses is used for planar reflecting the laser beam, suitable for CO2 laser machines. Before replace or install the Si laser mirrors, please confirm the diameter firstly. Parameters Usually one co2 laser machine needs 1 pcs focus lens and 3 pcs reflective mirrors. CO2 laser mirrors are used in CO2 laser machines. Adopt closed vacuum packaging to prevent oxidation and corrosion. Review: Great Product! Works well so far! - I used these to replace the mirrors on my at-home 100W CNC Lasercutter. This machine sees a maybe 2 hours use a week, and I've had it a few years, and noticed that the existing mirrors needed to be replaced. The new mirrors were easy to install and instantly improved the consistency of cuts. I did a recalibration of the mirror angles prior to use, which doubtless helped, but the machine is working like new again. I can't vouch for the longevity of this product, I just don't know how well they'll stand up. Review: Works great - Works great. They have been holding up just fine. I use them kn my k40 and get muxh better cutting. They are thicker then the standard k40 mirrors, but they do fit just fine. ## Features - 〖Laser Mirror Size〗Diameter: 20mm/0.79", Thickness: 3mm/0.12", Shape: plane. - 〖Excellent Material & Exquisite Coating Technology〗Gold-Plated silicon, 5 layers Coated gold film, Coating is durable. Superb coating art, precision slicing, polishing and grinding process, high heat resistance, adapt to work under harsh environment, long working life. - 〖High Reflectivity〗CNCOLETECH's Si laser reflective lens has super optical performance and fast heat dissipation, high working efficiency, and minimizes light loss caused by reflection. Reflectivity to infrared light is up to 99.8% at 10600nm wavelength, minimizing power loss from the laser tube to the the worktop. - 〖Widely Application〗Si laser mirror is suitable for 40-400W CO2 laser machines. It's great replacement laser lens to the K9 mirror for K40 and other 40W machine. - 〖Package〗3PCS 20mm CO2 laser mirror kit. Single piece independent packaging, Adopt closed vacuum packaging to prevent oxidation and corrosion. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DP2HV5Q | | Best Sellers Rank | #163,873 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #451 in Jewelry Making Engraving Machines & Tools | | Brand | CNCOLETECH | | Brand Name | CNCOLETECH | | Color | Gold | | Customer Reviews | 4.7 out of 5 stars 286 Reviews | | Item Weight | 0.03 Kilograms | | Manufacturer | Shanghai Top Nine Industrial Co.,Ltd | | Manufacturer Part Number | 43188-284907 | | Material | Gold-Plated Silicon | | Material Type | Gold-Plated Silicon | | Model Number | 43188-284907 | | Operation Mode | Automatic | | Style | Industrial | | Style Name | Industrial | ## Product Details - **Brand:** CNCOLETECH - **Color:** Gold - **Item Weight:** 0.03 Kilograms - **Material:** Gold-Plated Silicon - **Style:** Industrial ## Images ![Si Reflective Laser Mirror - Image 1](https://m.media-amazon.com/images/I/81+52briMcL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product! Works well so far! *by S***L on July 21, 2020* I used these to replace the mirrors on my at-home 100W CNC Lasercutter. This machine sees a maybe 2 hours use a week, and I've had it a few years, and noticed that the existing mirrors needed to be replaced. The new mirrors were easy to install and instantly improved the consistency of cuts. I did a recalibration of the mirror angles prior to use, which doubtless helped, but the machine is working like new again. I can't vouch for the longevity of this product, I just don't know how well they'll stand up. ### ⭐⭐⭐⭐⭐ Works great *by X***6 on August 1, 2021* Works great. They have been holding up just fine. I use them kn my k40 and get muxh better cutting. They are thicker then the standard k40 mirrors, but they do fit just fine. ### ⭐⭐⭐⭐⭐ Works great for my K40 Laser *by S***E on May 21, 2019* I got these to replace my cracked stock mirrors on my K40. These were drop in replacements and work great. Note: on the K40, if your mirrors keep slipping and need re-aligning, just generously dab hot glue on the screws once you have everything aligned. I used to have to re-align my mirrors very often but after I put hot glue, I haven't had to touch them at all in the past several months. ## Frequently Bought Together - CNCOLETECH 20mm CO2 Laser Mirror Si Reflective Lens - Gold-coated 3PCS for Laser Machine - CNCOLETECH CO2 Laser Lens 18mm Mirror Focus Lens PVD ZnSe FL 50.8mm / 2" for CO2 Laser Engraving Cutting Machine 30W-100W - Cloudray 12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fi/products/44827578-si-reflective-laser-mirror](https://www.desertcart.fi/products/44827578-si-reflective-laser-mirror) --- *Product available on Desertcart Finland* *Store origin: FI* *Last updated: 2026-07-18*