Choosing the right power level for a fiber laser cutting machine is essential for ensuring stable performance, clean edges, and efficient production. Among all factors, the thickness of the steel you process most frequently plays the greatest role in determining the power you need.

Lower-power machines can cut thin sheet metal effectively, but their speed and quality may decline as material thickness increases. To help you choose confidently, here are widely accepted power recommendations for cutting steel:
• Up to 6 mm (¼ inch): minimum 1.5 kW
• Up to 10 mm (⅜ inch): minimum 2 kW
• Up to 12–13 mm: minimum 3 kW
• Up to 25 mm (1 inch): consider 6 kW or higher
These values serve as general industry benchmarks. However, the best choice depends on your production environment—such as batch volume, material type, edge quality requirements, and expected operating hours.
Selecting the proper laser power ensures:
• Consistent cutting performance across your typical material range
• Higher productivity, especially on thicker steel
• Lower operational cost through optimized energy use
• Cleaner edges, reducing the need for secondary finishing
Making an informed power selection is the most effective way to increase efficiency, output quality, and long-term cost savings in any metal fabrication workflow.
BCAMCNC specializes in high-performance fiber laser cutting machines designed for industrial steel processing. With options ranging from entry-level systems to high-power solutions above 40 kW, we help manufacturers choose the right configuration for their materials, thickness ranges, and production goals.
If you need guidance on selecting the ideal power setup for your application, our engineering team is ready to assist.