There is no single "best" Gravotech system. Anyone who tells you otherwise has probably only worked with one type of application. After processing roughly 80 orders for industrial equipment between 2020 and 2024—I manage purchasing for a 200-person company that does a mix of direct parts marking and decorative engraving—I've come to believe the right choice depends almost entirely on what you're putting through the machine.
Most buyers focus on wattage and price. They ask: "What's the most powerful machine I can get for X dollars?" The better question is: "What material do I process most often, and what does that material demand from the laser?"
Broadly, industrial laser applications fall into three categories. I'll walk through each one, the Gravotech system that fits best, and the specific reasons why.
Scenario A: High-Volume Metal Marking for Traceability (DNA: The IS1200)
If your workflow is dominated by serial numbers, Data Matrix codes, logos, or UID marks on metal parts—think automotive components, aerospace brackets, or medical instruments—you need a dedicated fiber laser marking station. The Gravotech CNC Station IS1200 is designed for exactly this.
I still kick myself for not pushing for a dedicated station sooner. In 2021, our production team was using a CO2 laser (from another brand) to mark anodized aluminum. It worked... slowly. And inconsistently. The marks weren't meeting our customer's readability requirements, and we had a 12% scrap rate on a critical job. We lost the contract.
The IS1200 solves those problems because it's built around a fiber laser source. Fiber lasers (typically 20W to 50W) interact with metal at a molecular level, creating a permanent, high-contrast annealed mark. The key specs for this machine include an integrated vision system for part location and a rotary axis option for cylindrical parts.
Insight you may not have considered: The IS1200's "CNC station" form factor—with a large, enclosed work area and sliding door—isn't just about looks. It simplifies integration into a production line. You can park a parts feeder on one side and a conveyor on the other. A benchtop marker would require custom fixturing. The IS1200 reduces that engineering overhead.
This machine excels at:
- Direct part marking on steel, stainless, aluminum, and titanium
- High-speed marking of 2D codes (ISO 15415 compliant)
- Applications requiring repeatability within 0.001 inch
- Integration with MES or ERP systems
Scenario B: Versatile Engraving on Non-Metals (DNA: The M20)
Maybe your shop does a little bit of everything: acrylic signage, wood plaques, leather goods, plastic nameplates, and the occasional metal job. That was my situation from 2022-2023. We needed a jack-of-all-trades. The Gravotech Engraving Station M20 fits that profile better than any single-system I've evaluated.
The M20 uses a 20W CO2 laser tube. CO2 lasers operate at a wavelength (10.6 micrometers) that organic materials and plastics absorb efficiently. Wood burns, acrylic vaporizes cleanly, and leather etches without charring. The 20W power level is a sweet spot: powerful enough to cut 3mm acrylic in a single pass, but low enough that you can control delicate frosting on glass.
Here is the counterintuitive part: Conventional wisdom says "buy the most power you can afford." For this scenario, that is wrong. A 40W or 60W CO2 laser on acrylic will produce a flame-polished edge that is too hot, leading to more cleanup. The M20's 20W tube, combined with its proprietary air-assist nozzle, gives a cleaner edge on thin materials. More power would actually hurt quality for your most common jobs.
After 5 years of managing vendor relationships for equipment, I've learned that ease of use matters as much as specs. The M20 runs Gravotech's proprietary software suite (Marking S.A.S., if you want to look it up). That software handles job setup, vector import, and queue management. It eliminates the "fiddling with settings" step that wastes time on other machines.
This machine excels at:
- Engraving and cutting acrylic up to 5mm
- Leather, cork, and textiles (personalization or small batch)
- Wood (both hardwood and plywood) for signage
- Plastic nameplates, badges, and control panels
Scenario C: Multi-Purpose Cutting and Engraving (DNA: The LS Series)
If your work involves cutting thicker materials (say, 6mm+ acrylic, MDF, or plywood), or if you need to cover larger sheets up to 900mm x 600mm, you should be looking at the Gravotech LS Series (LS100, LS900, LS685).
I placed an order for an LS100 in early 2023 for a client who runs a prototyping lab. Their needs were different from my in-house production. They needed to cut 10mm acrylic for product enclosures, engrave plywood for jigs, and occasionally mark stainless steel (which they did with a separate fiber attachment). The LS100's 100W CO2 tube handled it easily.
What most buyers overlook about the LS series: the bed size and pass-through slot. The LS900, for example, has a 900mm x 600mm work area and a front-to-back pass-through. This lets you process long parts (like extruded aluminum profiles or long wooden boards) that would never fit in an M20 or IS1200. If your work flows in one direction, this feature saves hours of manual part repositioning.
You need to account for total cost of ownership here. A 100W CO2 tube costs roughly $600-1200 to replace, and the lifespan is about 3,000-5,000 hours depending on usage. The LS series is designed for easy tube swaps—something to ask about during a demo. (This was back in 2023, tube pricing may have shifted, so verify current rates.)
This machine excels at:
- Cutting thick acrylic (up to 15mm with multiple passes)
- Large-format cutting of wood and MDF
- Processing long extruded parts with the pass-through
- Fabric prototyping and small-run production
How to Determine Which Scenario Applies to You
Here is the decision tree I've developed after five years of managing these purchases:
- List your top 3 materials by volume. If over 70% of your work is metal (steel, aluminum, stainless), go straight to the IS1200. Fiber is non-negotiable for direct metal marking.
- Assess your sheet size. If you routinely work with materials larger than 500mm x 300mm (the M20's work area), skip the M20 and look at the LS series. The LS100 or LS900 will handle the bigger sheets without constant repositioning.
- Check your throughput requirements. Are you doing individual pieces or production runs? The IS1200 and LS100 are production-ready with automation options. The M20 is better suited for job-shop work where the next job might be completely different.
- Don't overlook software. All three platforms run Gravotech's software. But the IS1200 has deeper integration for vision-guided marking. If traceability and validation are critical (defense, medical, automotive supply chain) that matters significantly.
Bottom line: Start with your material. The machine follows the material. The IS1200 is a dedicated marking workstation, the M20 is a versatile engraver for small-to-medium items, and the LS series handles large-scale cutting. Matching the system to your dominant use case will save you the regret I felt after that lost contract in 2021.
