---
product_id: 28566370
title: "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"
brand: "cncoletech"
price: "€ 55.17"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cncoletech"
url: https://www.desertcart.nl/products/28566370-cncoletech-co2-laser-lens-dia-12mm-fl-2-or-50
store_origin: NL
region: Netherlands
---

# 40W-200W power compatible 12mm diameter, 50.8mm focal length ≥99.8% transmittance 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

**Brand:** cncoletech
**Price:** € 55.17
**Availability:** ✅ In Stock

## Summary

> 🎯 Sharpen your laser game with pinpoint precision and unstoppable power!

## Quick Answers

- **What is this?** 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 by cncoletech
- **How much does it cost?** € 55.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/28566370-cncoletech-co2-laser-lens-dia-12mm-fl-2-or-50)

## 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

- • **Plug-and-Play Upgrade:** Direct replacement lens designed for K40 and similar CO2 laser engravers—boost your workflow instantly.
- • **Wide Power Compatibility:** Seamlessly supports 40W to 200W CO2 laser systems, perfect for versatile professional use.
- • **Maximized Laser Efficiency:** Smaller focused spot size concentrates energy for faster, cleaner engraving and cutting.
- • **Precision Engineered Optics:** High-class CVD ZnSe material ensures ultra-stable laser performance and longevity.
- • **Durable Double-Sided Coating:** Advanced solid coating resists heat, scratches, and laser loss for extended service life.

## Overview

The CNCOLETECH CO2 Laser Lens features a 12mm diameter and 50.8mm focal length crafted from premium CVD ZnSe material, delivering ≥99.8% transmittance. Engineered for 40W-200W CO2 laser systems, its double-sided solid coating enhances durability and reduces laser loss, making it an essential upgrade for professional-grade engraving and cutting efficiency.

## Description

Buy 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: Cutting Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

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: Quality - I'm sure it's a good product but I had to return it because I ordered the wrong size

## 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: ≥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 | #36,871 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #90 in Jewelry Making Engraving Machines & Tools |
| Brand Name | CNCOLETECH |
| Color | Dia: 12mm Fl:2"/50.8mm |
| Customer Reviews | 4.7 out of 5 stars 459 Reviews |
| Item Weight | 0.02 Kilograms |
| Manufacturer | Shanghai Top Nine Industrial Co.,Ltd |
| Material Type | CVD ZnSe |
| Operation Mode | Automatic |
| Style Name | CVD ZnSe Lens |
| UPC | 642337973574 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** CNCOLETECH
- **Material:** CVD ZnSe
- **Color:** Dia: 12mm Fl:2"/50.8mm
- **Style:** CVD ZnSe Lens
- **Item Weight:** 0.02 Kilograms

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/5148Vk-CBiL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/51ZDozGaycL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/71hIYYZf1nL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/71zmtC6H3DL.jpg)
![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 - 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!

### ⭐⭐⭐⭐⭐ Quality
*by M***T on June 19, 2025*

I'm sure it's a good product but I had to return it because I ordered the wrong size

### ⭐⭐⭐⭐⭐ 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

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-27*