--- title: CO2 Laser Lenses source_url: https://buythis.co.za/co2-laser-lens published: 2023-05-19 18:43:03 modified: 2024-07-24 11:44:40 fetched_at: 2026-08-31T12:20:02+0200 category: company wp_site: https://buythis.co.za wp_prefix: buythis_co_za wp_id: 32981 wp_type: page pass: buythis-live-mysql-digest-2026-08-31 notes: live buythis published digest; public permalink; no wp internals in body. --- # CO2 Laser Lenses **Source:** [https://buythis.co.za/co2-laser-lens](https://buythis.co.za/co2-laser-lens) - published: 2023-05-19 18:43:03 - modified: 2024-07-24 11:44:40 - youtube: - https://www.youtube.com/watch?v=KViyAYWmcUw - https://www.youtube.com/watch?v=Asb2eTYVjg0 - featured_image: https://buythis.co.za/wp-content/uploads/2023/06/BannerHeader_CNC_Laser_lensesmirrors.jpg ![](https://buythis.co.za/wp-content/uploads/2023/06/BannerHeader_CNC_Laser_lensesmirrors.jpg) # CO2 Laser Lenses [##### Laser Lense Videos](https://www.youtube.com/c/AchievementMatters/search?query=Laser%20Mirrors%20Lenses) - [### Mirrors & Lenses](https://buythis.co.za/mirrors-lenses) - [### CO2 Laser Tubes](https://buythis.co.za/laser-tubes) - [### Desktop CO2](https://buythis.co.za/desktop-lasers) - [### Cabinet CO2](https://buythis.co.za/cabinet-lasers) - [### Flatbed CO2](https://buythis.co.za/flatbed-lasers) - [### Cooling Equipment](https://buythis.co.za/cooling-equipments) - [### Training](https://softwaretraining.co.za/training-videos/rdworks) ## Understanding the relevance of focal length and diameter of C02 Laser lenses Understanding the relevance of focal length and the diameter of the lenses in CO2 lasers is crucial for effective operation and efficiency in various industrial applications, including cutting, engraving, and welding. **The focal length**, which *is the distance from the lens to the point where the laser beam converges*, plays a significant role in determining the laser's depth of field and cutting precision. **A shorter focal length** provides a **smaller spot size, leading to higher power density and superior detail work**, while a **longer focal length** offers a larger working area, **essential for cutting thicker materials**. Conversely, the lens **diameter primarily influences** the **power handling capacity of the laser**. **A larger lens diameter facilitates** the passing of **a more significant amount of laser power without lens damage or overheating**, resulting in **better performance for high-power applications**. Consequently, selecting the appropriate focal length and lens diameter is a critical factor for optimising CO2 laser functionality and achieving the desired outcomes in various industrial operations. Understanding these aspects not only helps improve the laser's performance but also contributes to its longevity and cost-efficiency. ## C02 Laser Lense Reference Guide Diameter → Focal Length ↓ Φ12mm Φ15mm Φ18mm Φ19mm Φ20mm Φ25mm 38.1mm [L-LENS-ZNSE/18/381](https://buythis.co.za/l-lens-znse-18-381) [L-LENS-ZNSE/19/381](https://buythis.co.za/l-lens-znse-19-381) [L-LENS-ZNSE/20/381](https://buythis.co.za/l-lens-znse-20-381) [L-LENS-ZNSE/25/381](https://buythis.co.za/l-lens-znse-25-381) 50.8mm [L-LENS-ZNSE/12/508](https://buythis.co.za/l-lens-znse-12-508) [L-LENS-ZNSE/15/508 L-LENS-ZNSE/15/508p](https://buythis.co.za/l-lens-znse-15-508) [L-LENS-ZNSE/18/508](https://buythis.co.za/l-lens-znse-18-508) [L-LENS-ZNSE/19/508](https://buythis.co.za/l-lens-znse-19-508) [L-LENS-ZNSE/19/508p](https://buythis.co.za/l-lens-znse-19-508p) [L-LENS-ZNSE/20/508](https://buythis.co.za/l-lens-znse-20-508) [L-LENS-ZNSE/20/508P](https://buythis.co.za/l-lens-znse-20-508p) [L-LENS-ZNSE/25/508](https://buythis.co.za/l-lens-znse-25-508) 63.5mm [L-LENS-ZNSE/18/635](https://buythis.co.za/l-lens-znse-18-635) [L-LENS-ZNSE/19/635](https://buythis.co.za/l-lens-znse-19-635) [L-LENS-ZNSE/19/635P](https://buythis.co.za/l-lens-znse-19-635p) [L-LENS-ZNSE/20/635](https://buythis.co.za/l-lens-znse-20-635) [L-LENS-ZNSE/20/635P](https://buythis.co.za/l-lens-znse-20-635p) [L-LENS-ZNSE/25/635](https://buythis.co.za/l-lens-znse-25-635) 101.6mm [L-LENS-ZNSE/20/1016](https://buythis.co.za/l-lens-znse-20-1016) ## Support & Trouble Shooting ### Determine Laser Lens Focus Length https://youtu.be/KViyAYWmcUw *How to Determine Laser Machine Lens Focus Length and Using Stocked Lenses* See this insightful video by the [skilled technicians of Machinery.Africa](https://machine.africa/). In this video, we share a valuable trick to determine the focal length of laser lenses used in CO2 laser cutting machines. It will help you understand the importance of lens focus length and its impact on the precision and quality of laser cutting. This video, featured on the [Machining.co.za](http://machining.co.za/) and [am.co.za's YouTube channel](https://www.youtube.com/@AchievementMatters/search?query=trucut), offers a practical solution for laser professionals seeking to optimise their laser cutting operations. [Join Machinery.Africa as they unlock the secrets to achieving accurate and efficient laser lens focus length for enhanced performance in CO2 laser cutting](https://machine.africa/). ![](https://buythis.co.za/wp-content/uploads/2022/07/YoutubeIcon_.svg) **Check out our [CO2 Laser Training & News on am.co.za's Youtube Channel](https://www.youtube.com/@AchievementMatters/search?query=trucut)** ### How to Install Tubes, Mirrors and Lenses https://youtu.be/Asb2eTYVjg0 *Install Laser Tube, Mirror & Lens, Alignment Service of CO2 Laser Cutting Machine* In this informative video from the [Machinery.Support VLOG](https://machinery.support/) by the [skilled C02 Laser technicians of Machine.Africa](https://machine.africa/) will guide you through the step-by-step process of installing a laser tube, mirror, and lens, as well as laser alignment and servicing. With our expertise in repairing, servicing, upgrading, and maintaining CO2 laser cutter machines, you can rest assured that you're in capable hands. Whether you're a beginner or an experienced user, our detailed instructions and practical tips will help you optimise your machine's performance. Join us as we share our knowledge and help you unlock the full potential of your CO2 laser cutting machine. ![](https://buythis.co.za/wp-content/uploads/2023/06/Logo_MAchineAfrica_icon.svg) **Check out [Machinery.Support VLOG](https://machinery.support/) by the [Machine.Africa](https://machine.africa/)**Team ## Video - YouTube: [https://www.youtube.com/watch?v=KViyAYWmcUw](https://www.youtube.com/watch?v=KViyAYWmcUw) - YouTube: [https://www.youtube.com/watch?v=Asb2eTYVjg0](https://www.youtube.com/watch?v=Asb2eTYVjg0)