---
product_id: 433746642
title: "CNCOLETECH CVD II-VI ZnSe Focus Lens Dia:20mm FL:63.5mm/2.5\" for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W"
brand: "cncoletech"
price: "€ 101.35"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/433746642-cncoletech-cvd-ii-vi-znse-focus-lens-dia-20mm-fl
store_origin: FI
region: Finland
---

# 20mm diameter, 63.5mm focal length Supports 40W-200W high power ≥99.8% transmittance CNCOLETECH CVD II-VI ZnSe Focus Lens Dia:20mm FL:63.5mm/2.5" for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W

**Brand:** cncoletech
**Price:** € 101.35
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** CNCOLETECH CVD II-VI ZnSe Focus Lens Dia:20mm FL:63.5mm/2.5" for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W by cncoletech
- **How much does it cost?** € 101.35 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/433746642-cncoletech-cvd-ii-vi-znse-focus-lens-dia-20mm-fl)

## 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

- • **High-Power Endurance:** Built to withstand intense 40W-200W CO2 laser operations without degradation
- • **Optimized Focal Length:** 63.5mm focal length delivers a concentrated, smaller laser spot for sharper cuts
- • **Plug & Play Compatibility:** Seamlessly fits most CO2 laser engravers and cutters for hassle-free upgrades
- • **Precision Engineered Optics:** CVD ZnSe material ensures ultra-clear laser focus with minimal loss
- • **Durable Double-Sided Coating:** Scratch-resistant and heat-tolerant for extended lens lifespan

## Overview

This CVD II-VI ZnSe focus lens, crafted from premium US-made ZnSe material, offers exceptional ≥99.8% transmittance and supports high-power CO2 lasers from 40W to 200W. Its 20mm diameter and 63.5mm focal length optimize laser focus for superior engraving and cutting efficiency, while double-sided coatings ensure durability and reduced laser loss—making it the must-have upgrade for professionals demanding precision and reliability.

## Description

CVD II-VI ZnSe Focus Lens Dia:20mm FL:63.5mm/2.5" for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W

## 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: 20mm/0.79"; Focal Length:63.5mm/2.5"; 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 |
|---------------|-------|
| Brand | CNCOLETECH |
| Material | ZnSe |
| Colour | Fl:2.5"/63.5mm |
| Style | Laser |
| Item Weight | 0.03 Kilograms |
| Operation Mode | Manual |
| Manufacturer | Shanghai Top Nine Industiral Co.,Ltd |
| Country of Origin | USA |
| Model number | IIVI-20-635 |
| Number of Memory Sticks | 1 |
| Item Weight | 26 g |
| Product Dimensions | 2 x 2 x 0.1 cm; 26 g |
| Item model number | IIVI-20-635 |
| Item Height | 0.1 Centimeters |
| Item Width | 20 Millimeters |
| Are batteries included? | No |

## Product Details

- **Brand:** CNCOLETECH
- **Material:** ZnSe
- **Colour:** Fl:2.5"/63.5mm
- **Style:** Laser
- **Item Weight:** 0.03 Kilograms

## Images

![CNCOLETECH CVD II-VI ZnSe Focus Lens Dia:20mm FL:63.5mm/2.5" for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W - Image 1](https://m.media-amazon.com/images/I/51ZDozGaycL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How can i order other FL?**
A: Thank for your interest in our lens. Here is other FL lens link in USA FBA warehouse, you will get it soon.
FL 25.4mm lens link: https://www.amazon.com/dp/B01DP2HDBI?ref=myi_title_dp
FL 38.1mm lens link: https://www.amazon.com/dp/B01DP2HECQ?ref=myi_title_dp
FL 50.8mm lens link:https://www.amazon.com/dp/B01DP2HFU2?ref=myi_title_dp
FL 76.2mm lens link:https://www.amazon.com/dp/B01DP2GTMW?ref=myi_title_dp
FL 101.6mm lens link:https://www.amazon.com/dp/B07M7DGX26?ref=myi_title_dp
If you need any other help please contact us by service@mcwlaser.com

**Q: What is the focus distance of this lens?**
A: Thank for your interest in our products.
The lens focal length is 63.5mm/2.5" as the listing description. If you need any help please contact us by sales@mcwlaser.com

**Q: Are these Meniscus or Plano-Convex lenses?**
A: 63.5mm and 50.8mm FL lenses are meniscus.
Other 25.4mm, 38.1mm, 76.2mm,101.6mm FL lenses are Plano-Convex

## Frequently Bought Together

- CNCOLETECH CO2 Laser Lens 20mm FL:2.5" or 63.5mm Laser Mirror CVD ZnSe Focus Focal Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W
- Cloudray Mo Mirror Dia 25mm (0.98 Inch) Thk 3mm (0.12 Inch) for CO2 laser engraving cutting machine Pack of 3PCS
- Cloudray Laser Si Reflective Lens Gold Plated Mirror 25mm for CO2 Laser Engraving & Cutting, 3PCS

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-16*