Not necessarily. It depends on what you cut.

Stainless, 3000 W versus 6000 W

Thickness 3000 W 6000 W
 1 mm 28 – 35 40 – 50 m/min
 3 mm 7 – 10 15 – 18
 6 mm 2 – 2.7 6 – 7

At 3 mm and 6 mm, doubling the power nearly doubles the speed. But at 1 mm it only goes from 28–35 to 40–50 — an improvement, but out of proportion to the price difference.

The reason: on thin sheet the limit is not laser power but the machine's mechanical speed — acceleration, cutting-head inertia, and how well the drive system follows the path.

How to check for yourself

Look at the actual job mix in your shop:

  • Mostly under 3 mm — extra power buys limited benefit. That money spent on a shuttle table, dust extraction or automated loading raises output more.
  • Regularly above 6 mm — power is the deciding factor. The speed difference is unmistakable.
  • Plate above 20 mm in the mix — this is no longer about speed. A low-power machine cannot cut it at all; that is a hard limit.

The question to ask before deciding

Don't ask which machine is strongest. Ask: of the 100 sheets you ran last month, how many were thicker than 6 mm? That number decides for you.

Laser power selection tool