Essential Tips to Reduce Protective Lens Damage in Handheld Laser Welding
01/30/2026
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Protective lenses are critical optical components in a handheld laser welding head. Their primary role is to shield the internal
Gao Pengfei — Founder & CEO of Kaihuan Laser
I'm Gao Pengfei, founder and CEO of Kaihuan Laser. We build handheld fiber laser welding machines — 1500W, 2000W and 3000W — for metal fabricators who are done losing time to grinding and rework.I started this company for one reason: I kept meeting shop owners who were paying a premium for skilled TIG welders they could not keep, while the thin stainless and aluminum work in front of them was slow, warped and needed polishing afterwards. Handheld fiber laser welding fixes that. The machine handles the repetition; your welder handles the judgment.Today our machines run in more than 50 countries, we run our own factory in China, and more than 1.2 million fabricators follow our weld tests on social media — because we show the raw metal, not a render. I still review the technical content on this site myself, and I answer questions about laser welding directly on X and LinkedIn.I write here about the things buyers actually get stuck on: parameter setup, weld strength, lens and consumable costs, and the safety questions that come up in a real workshop.
I'm Gao Pengfei, founder and CEO of Kaihuan Laser. We build handheld fiber laser welding machines — 1500W, 2000W and 3000W — for metal fabricators who are done losing time to grinding and rework.I started this company for one reason: I kept meeting shop owners who were paying a premium for skilled TIG welders they could not keep, while the thin stainless and aluminum work in front of them was slow, warped and needed polishing afterwards. Handheld fiber laser welding fixes that. The machine handles the repetition; your welder handles the judgment.Today our machines run in more than 50 countries, we run our own factory in China, and more than 1.2 million fabricators follow our weld tests on social media — because we show the raw metal, not a render. I still review the technical content on this site myself, and I answer questions about laser welding directly on X and LinkedIn.I write here about the things buyers actually get stuck on: parameter setup, weld strength, lens and consumable costs, and the safety questions that come up in a real workshop.