CO₂ vs Fiber Laser: Which Cutter Is Right for You?

When you start shopping for a laser cutting or engraving machine, the first big fork in the road is CO₂ vs fiber. Both use a laser beam to cut or mark material, but they work on completely different substances. Pick the wrong one and you will either waste money or waste capacity. Here is how to decide.
The core difference: wavelength
A CO₂ laser emits at 10.6 micrometers, a wavelength that non-metal materials absorb very well. A fiber laser emits at 1.06 micrometers, about ten times shorter, which metals absorb very well but non-metals mostly reflect or let pass through.
That single number explains almost everything.
What each machine is good at
CO₂ Laser
Fiber Laser
Best at
Acrylic, wood, MDF, leather, fabric, paper, glass, rubber
Stainless steel, carbon steel, aluminum, brass, copper
Not great at
Thick metals
Non-metals (acrylic, wood)
Typical power
60W – 500W
1000W – 12000W
Speed on thin metal
Slow
Very fast (5–10× faster)
Cost
Lower entry price
Higher entry price, lower running cost per part
Engraving
Excellent on wood, acrylic, leather
Excellent on metals (marking)
Practical scenarios
Choose CO₂ if:

• You run a sign shop cutting acrylic and PVC letters.
• You engrave wood gifts, leather goods, or printed fabric.
• You cut gaskets, foam, paper, or packaging.
• Your budget is under $20,000 and you mostly handle non-metal sheets.
  A machine like the BY-1325 (1300×2500 mm bed, 100–500W) is built exactly for this world: it engraves and cuts acrylic, wood, leather and fabric, and it can handle up to 20 mm of non-metal material.
  Choose fiber if:
• You cut metal sheets for cabinets, kitchens, furniture, or signage.
• You need high throughput on stainless or carbon steel.
• You want to mark serial numbers, logos, or labels directly on metal.
• You can invest $30,000+ and plan to run the machine 8 hours a day.
  A machine like the A6020A (6000W, 6050×2030 mm bed) is built for this: it cuts 10+ mm steel all day long at high speed.
  Can one machine do both?
  There are hybrid machines with both a CO₂ and a fiber source on the same gantry, and they work — but they cost roughly 30–50% more than a dedicated machine. For most shops, it is cheaper and simpler to buy the right single-purpose machine than a jack-of-all-trades.
  The honest answer
  If you are a sign shop, a craft workshop, or a small furniture maker: start with CO₂. If you are a metal fabricator, a kitchen/bath factory, or an electrical cabinet shop: go fiber. If you genuinely do half-and-half non-metal and metal work, buy the machine that handles the material you cut most — and outsource the other half until volume justifies a second machine.