Cloudray CO2 Laser Lens 20mm Laser Mirror CO2 Focal Lens Focus,CVD ZnSe for Engraving Cutting Machine, Cutter 40W-200W,Dia 20mm FL101.6mm
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
This 20mm CVD ZnSe meniscus lens with a 101.6mm focal length is for CO2 laser users needing a 40W-200W compatible replacement.
This lens is a strong fit for anyone with a CO2 laser engraver/cutter requiring a 20mm diameter, 101.6mm focal length, and 40W-200W power compatibility. Its CVD ZnSe material and high transmittance are key for consistent results in maker_diy applications.
If you need to cut thicker materials or require a different working distance, look for lenses with varying focal lengths, such as 63.5mm for shorter focus or 127mm for longer focus.
Regret Score™
Low RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Manufactured from high-purity CVD ZnSe material, offering superior thermal stability and low absorption.
- Features a double-sided solid coating for wiping resistance and extended working life.
- Achieves ≥99.5% transmittance, ensuring efficient laser energy delivery.
- Designed for CO2 laser systems operating between 40W and 200W.
- Provides precise focusing for clean engraving details and smooth cutting edges.
Cons
- Specific long-term performance data beyond general 'long working life' is not detailed.
- The 2mm thickness might be less robust than thicker alternatives for some applications.
- Requires careful handling and regular cleaning to maintain optimal performance due to optical nature.
- Some users have reported slower delivery times.
Dimension Scores
The CVD ZnSe material and ≥99.5% transmittance contribute to precise focusing and clean engraving/cutting.
It's a standard replacement part, but proper installation and regular cleaning are necessary for optimal function.
Compatible with a 40W-200W power range and suitable for various non-metal materials.
The CVD ZnSe material and double-sided coating provide thermal stability, wiping resistance, and extended working life.
Best For
- Hobbyists and small workshops needing a replacement 20mm CO2 laser lens for 40W-200W machines.
- Users performing engraving and cutting of non-metal materials like wood, acrylic, and leather.
- Those seeking a cost-effective lens option without sacrificing core optical properties.
Not Recommended For
- High-power industrial laser systems exceeding 200W, as compatibility is specified up to 200W.
- Users who prioritize brand-name, premium-priced optics with extensive third-party performance validation.
- Applications requiring a focal length other than 101.6mm.
Watch Out For
- The specified 40W-200W power compatibility means using it outside this range could affect performance or lifespan.
- While coated for wiping resistance, improper cleaning techniques can still damage the lens surface.
- Some users report that delivery can be slow, which could delay machine uptime.
Full Specifications
| UPC | 661021765165 |
| ASIN | B07B8M2NN1 |
| Brand | Cloudray |
| Color | Diameter 20mm(0.79 Inch) |
| Style | Laser |
| Material | CVD Znse |
| Item Weight | 0.705 ounces |
| Manufacturer | Cloudray |
| Operation Mode | Automatic |
| Item model number | USA CVD |
| Package Dimensions | 4.09 x 3.39 x 2.24 inches |
| Is Discontinued By Manufacturer | No |
What Buyers Say
Users frequently highlight the lens's ability to deliver sharp engraving and clean cuts, often noting its performance exceeds expectations for its price point. The high-purity CVD ZnSe material is a recurring positive, cited for its thermal stability and low absorption. While the lens generally performs well, some buyers have experienced slower shipping times. The double-sided coating is also mentioned as contributing to its longevity and resistance to wear.
“Man, this lens actually works! My cuts are way cleaner now, and I didn't have to spend a fortune. Just wish it shipped a bit faster, but hey, for the price, I'm not complaining.”
Common Praise
- Ensures clean engraving details and smooth cutting edges.
- Provides excellent infrared transmittance and precise focusing.
- Made from high-purity CVD ZnSe, offering superior thermal stability.
- Advanced coating improves scratch resistance and reduces contamination.
- Offers a strong price-to-performance ratio, making it a cost-effective choice.
Common Complaints
- Delivery times can be longer than expected.
- No specific complaints about optical defects or premature failure were found in the provided snippets.
- Requires consistent cleaning to maintain peak performance, which can be a chore.
- The 2mm thickness might be perceived as fragile by some users.
Ownership Tips
- Regularly checking for dust and debris on the lens surface is crucial for maintaining cut quality.
- The lens's performance is noticeably affected by proper alignment within the laser head.
- Using appropriate power settings within the 40W-200W range helps extend the lens's lifespan.
- Even with the coating, careful handling during installation and cleaning prevents micro-scratches.
Frequently Asked Questions
What materials can this lens cut or engrave?
This CO2 laser lens is designed for engraving and cutting non-metal materials, including wood, acrylic, leather, rubber, and fabric.
How do I clean this laser lens?
Always keep the lens clean to maintain optimal laser performance. Avoid touching the lens surface directly with bare hands. Use appropriate optical cleaning solutions and wipes to prevent damage.
Is this lens compatible with my 80W CO2 laser?
Yes, this lens is compatible with CO2 laser systems ranging from 40W to 200W, so an 80W laser falls within its specified power range.
What does 'meniscus' shape mean for a laser lens?
A meniscus lens has one convex and one concave surface, which helps to minimize spherical aberration and produce a finer, more consistent laser spot for engraving and cutting.
What is the benefit of CVD ZnSe material?
CVD ZnSe offers superior thermal stability, low absorption of laser energy, and strong resistance to heat, which contributes to a longer lens lifespan and stable laser output.
Buying Guide
When you're looking at laser lenses, you need to match a few key numbers to your machine and what you're trying to do. The diameter has to fit your laser head, or it just won't install. The focal length dictates your working distance and the size of your laser spot – shorter focal lengths give you a finer spot for engraving, while longer ones are better for cutting thicker stuff. The material, like CVD ZnSe here, affects how much power it can handle and how long it lasts.
Material (CVD ZnSe)
This is like the quality of glass in a camera lens. CVD ZnSe is a specific type of material that lets CO2 laser light pass through with minimal loss, meaning more power gets to your material and less heat builds up in the lens itself.
Focal Length (101.6mm/4")
Think of this like how far you hold a magnifying glass from a leaf to burn it. A 101.6mm focal length means the laser beam converges to its tightest point about 101.6mm from the lens, which is your optimal working distance for cutting or engraving.
Compatible Power (40W-200W)
This tells you how powerful a laser tube the lens can safely handle without getting damaged. Using a lens with a laser that's too powerful for it can lead to premature failure or poor performance.
Alternatives
If this lens doesn't fit, search for lenses with different diameters to match your laser head, or explore other focal lengths like 63.5mm or 127mm to suit your specific cutting or engraving depth needs.
You Might Also Like
xTool F2 Ultra UV Laser Engraver, 5W UV Laser, 3D Inner and Fine Glass Engraving, Dual 48MP Cameras, 15,000 mm/s High Speed, AI Powered 2D-to-3D Software, Ultra-Precise Detail on Glass Plastic Acrylic
$600+A 5W UV laser engraver with <10μm spot size for 3D inner glass engraving and cold processing heat-sensitive materials.
50W CO2 Laser Engraver, 16x16 inch Desktop Laser Cutter and Engraving Machine Compatible with CorelDRAW, Windows XP 7 8 10, EMF, JPG, PLT, WMF for Wood Acrylic Fabric (16"x16")
$600+This is a 50-60W CO2 laser engraver with a 300x200mm engraving area and 0.01mm positioning accuracy, designed for hobbyists and small businesses working with non-metallic materials.
LaserPecker LP5 Smart Dual 20W Fiber + Diode Laser Engraver Cutter with Rotary Extension, Slide Extension & Air Purifier, 3D Embossing, Color Engraving, Ideal for On-site Customization
$600+A dual 20W Fiber and 20W Diode laser engraver with 10,000mm/s speed, ideal for on-site customization across nearly all materials.
WIZMAKER 12W Laser Engraver Machine, Portable Carving Machine, 300x300mm Carving Area, 0.1mm High-Precision DIY Production, Suitable for Wood, Metal, Acrylic and Other Materials
$150-$299This is a 12W laser engraver with a 300x300mm carving area and 0.1mm precision, designed for DIY production on various materials.