Can a Laser Cutter Cut Metal? A Buyer's Perspective on Aeon vs Thunder

I manage purchasing for a mid-sized manufacturing company—about 70 employees across two facilities. I've been in this role since 2021, which means I've bought everything from office supplies to CNC tooling. Roughly $1.2 million a year across eight vendors. When the engineering team asked me to research laser machines, I assumed it would go like most equipment purchases: compare specs, compare prices, pick a winner.

It didn't. Here's the thing about lasers: there's no universal answer, because the right machine depends entirely on what you'll run through it.

Four questions kept coming up during our research:

1. "Can a laser cutter cut metal?"
2. "Can it cut paper?"
3. "Can we get one machine that welds and cuts?"
4. "Should we go with Aeon or Thunder?"

Each question maps to a different buying scenario, and the answers determine which machine makes sense for you. I'll walk through each one.

Can a Laser Cutter Cut Metal? Only If It's the Right Type of Laser

Most buyers focus on wattage and completely miss laser type, which is the actual deciding factor. I was guilty of that too.

The short answer: CO2 lasers cut wood, acrylic, paper, leather, and fabric—but they won't cut steel or aluminum. Fiber lasers are the metal cutters. They operate at a wavelength that metal absorbs instead of reflecting.

We tested this ourselves. Our shop does a mix of metal fabrication and signage work. We initially looked at a CO2 machine because it was way cheaper than a fiber unit. When I asked the vendor "Can a CO2 laser cut metal?" the answer was: "It can mark coated metals, but it won't cut through them." That clarification saved us from a $30,000 mistake.

I wasn't always that careful. In my first year of buying equipment, I made the classic specification error—assumed "laser cutter" meant one machine handled everything. That cost me two weeks of delays and a $700 service call to clean up. Now I verify before I commit.

Here's the scenario split for metal work:

• Cutting steel or aluminum → fiber laser, 1kW and up. CO2 won't get there.
• High-contrast marking on metal → MOPA fiber laser.
• Non-metal work → CO2 is the workhorse, and higher wattage means speed and thickness, not better precision.

Laser Paper Cutter Machines: The Question Nobody Asks

Here's the thing: laser paper cutter machines are a real category, and they're one of the most underrated uses of CO2 lasers.

We have a client that produces custom packaging mockups. They used to outsource die cutting—$500 to $900 per die, plus a week or two of turnaround. With a CO2 laser, they upload a new file and cut the same afternoon. Zero die costs, zero waiting.

Why doesn't everyone know this? Because most buyers think of lasers as engravers first and don't consider them for precision paper or cardboard cutting. Everyone fixates on metal cutting and ignores the materials that dominate the packaging industry.

The Aeon Nova 10 handles paper beautifully. It has a pass-through design, so you can feed roll stock in one side and out the other. For a paper-cutting operation, that's the difference between batch production and handling one sheet at a time.

That said, I have mixed feelings about recommending a dedicated machine. On one hand, the Nova 10 is a workhorse for paper, cardstock, and craft materials. On the other, if your demand is sporadic, you're better off using a local job shop with a laser than buying your own. The machine only pays for itself at consistent volume.

Laser Welding and Cutting Machines: The Combo Question

"Can we get one machine that does both welding and cutting?"

Yes. Combo laser welding and cutting machines exist, and they've improved considerably since 2020. They're typically fiber-based, using 1.5kW-3kW to handle both processes. For a shop doing fabrication, repairs, and custom parts, that's attractive because it replaces two separate tools.

But the combo isn't always the smart buy. It makes sense when:

• Welding is at least 40-50% of your total work
• Material thickness stays in a consistent range
• You have the floor space and power supply for a larger machine

It makes less sense when you're primarily cutting, with only occasional welding, or when your work is highly variable.

The assumption is that a combo machine is cheaper than two separate ones. In our Q3 2024 pricing exercise with four equipment suppliers, the two-machine setup cost about 12% more upfront but delivered roughly 20% higher throughput per hour for our mix. The combo won on floor space; the separate machines won on flexibility. But I've seen small repair shops where the combo was absolutely the right call—it depends on your workflow, and anyone who claims one answer fits every shop is overselling.

Aeon vs Thunder Laser: How We Made the Call

The brand comparison is where transparency matters most. When I started researching "Aeon vs Thunder laser," I found plenty of forum threads and very few clear answers.

Here's what I learned from an actual purchase process. Both companies build quality machines. On paper, a Thunder and an Aeon at the same wattage and work area perform nearly identically. The real differences are support infrastructure, the technical depth of the team, and how they handle the "what's NOT included" conversation.

We leaned toward Aeon Laser for two reasons. First, their multi-technology platform—CO2, fiber, UV, MOPA—means their support team sees a broader range of machines, applications, and failure modes. That breadth showed up in how quickly and specifically they answered our questions. Second, they have genuine local support in the US, plus a West Melbourne office for the Australian market. When a laser is down, response time matters more than any spec sheet.

Thunder didn't do anything wrong. They just didn't match on local support for our region. In Asia, or with a different lead-time tolerance, I'd probably have made a different choice.

One moment stood out. I asked each vendor to quote the machine plus all necessary accessories: ventilation, chiller, training, installation. One vendor's quote came in about 16% lower than the others—but they'd left off the chiller, the training session, and the shipping. Adding those back in made the "cheap" quote the most expensive. Same lesson applies everywhere: the vendor who lists all fees upfront, even if the total looks higher, usually costs less in the end.

So Which Scenario Are You?

Bottom line: the right laser depends on your material, your volume, and your support expectations.

• Cutting wood, acrylic, paper, leather, or fabric → CO2 laser. The Aeon Nova 10 is a solid choice for this range.
• Cutting steel or aluminum → fiber laser, 1kW or higher.
• High-contrast marking on metal → MOPA fiber laser.
• Balanced welding and cutting on metal → combo fiber machine, but only if your volume justifies it.
• Not sure yet → rent time on a machine at a local shop before buying anything. A day of testing teaches you more than a stack of spec sheets.

And before you sign anything, ask: "What's included?" Then ask: "What's NOT included?" If the vendor hesitates on the second question, you've just learned everything you need to know.