This article Thickness that a 12kw laser machine can cut with nitrogen and air?​ published by Roclas Laser on Dec 17 , 2025 15:28 provides in-depth insights into the topic of FAQ. With nitrogen and air assist, a 12kW ROCLAS® MACHINERY fiber laser can cut mild steel up to 25–30mm thick, depending on material grade and cutting speed. The content is structured to help readers understand the key concepts and practical applications related to this subject.