--- product_id: 43081954 title: "Si Reflective Mirrors" price: "COP 271329" currency: COP in_stock: true reviews_count: 9 url: https://www.desertcart.co/products/43081954-si-reflective-mirrors store_origin: CO region: Colombia --- # 99.8% infrared reflectivity 25mm diameter precision 5-layer gold-plated durability Si Reflective Mirrors **Price:** COP 271329 **Availability:** ✅ In Stock ## Summary > 🔬 Reflect your laser’s true potential with precision and power! ## Quick Answers - **What is this?** Si Reflective Mirrors - **How much does it cost?** COP 271329 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/43081954-si-reflective-mirrors) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision 25mm Diameter:** Perfectly sized for optimal laser beam reflection and compatibility with 40-400W CO2 laser machines. - • **Ultra-High Reflectivity:** Reflects up to 99.8% of infrared light at 10600nm, maximizing laser efficiency and minimizing power loss. - • **Vacuum-Sealed Packaging:** Independently vacuum-packed to prevent oxidation and corrosion, guaranteeing mirror performance out of the box. - • **Gold-Plated Silicon Coating:** 5-layer durable gold film ensures exceptional heat resistance and longevity under harsh operating conditions. - • **Seamless Upgrade for K40 & More:** Thicker, premium replacement mirrors that enhance cutting precision and consistency for popular CO2 laser models. ## Overview This 3-piece set of 25mm diameter CO2 laser mirrors features gold-plated silicon with a 5-layer coating, delivering 99.8% reflectivity at 10600nm. Designed for 40-400W CO2 laser machines, these mirrors offer superior heat resistance, durability, and come vacuum-sealed to prevent corrosion. Ideal for upgrading or replacing mirrors in K40 and similar laser cutters, they ensure enhanced cutting accuracy and long-lasting performance. ## 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: 25mm/0.98", 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 25mm CO2 laser mirror kit. Single piece independent packaging, Adopt closed vacuum packaging to prevent oxidation and corrosion. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DP2HT58 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #58,918 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #138 in Jewelry Making Engraving Machines & Tools | | Customer Reviews | 4.7 4.7 out of 5 stars (285) | | Date First Available | March 31, 2016 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 0.845 ounces | | Item model number | LM-Si25 | | Manufacturer | Cole | | Material | Gold-Plated Silicon | | Number Of Pieces | 3 | | Package Dimensions | 3.82 x 3.27 x 1.02 inches | | Part Number | LM-Si25 | | Size | Dia: 25mm ; 3PCS | | Style | Industrial | ## Images ![Si Reflective Mirrors - Image 1](https://m.media-amazon.com/images/I/81pBusBYSpL.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 25mm CO2 Laser Mirror Si Reflective Lens 3PCS CO2 Laser Lens Si Gold Plated Laser Mirrors Dia 25mm Co2 Laser Mirror for CO2 Laser Machine - Cloudray CO2 Laser Lens 18mm Laser Mirror CO2 Laser Focal Lens CO2 Focus Lens,PVD ZnSe for CO2 Laser Engraving Cutting Machine,Laser Cutter 30W-100W,Dia 18mm FL50.8mm - CNCOLETECH 20mm CO2 Laser Lens, 50.8mm Focal Length, PVD ZnSe Material, 30W-100W Compatible, For CO2 Laser Engraving & Cutting --- ## 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.co/products/43081954-si-reflective-mirrors](https://www.desertcart.co/products/43081954-si-reflective-mirrors) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-07-13*