Galvo vs Gantry Lasers: Speed, Work Area and Which One You Need

“Galvo” and “gantry” describe how the beam gets from the laser to your workpiece, not which laser source is inside. A diode, CO2 or fiber source can sit on either. For small personalization businesses the motion system often matters as much as the wavelength: it decides how many items you can finish per hour and how big they can be.

How each one works

Gantry. The laser head rides on rails. One motor moves it left and right; another moves the crossbeam front to back. xTool’s explainer puts it simply: “The entire laser head physically travels along the X and Y axes,” and the beam always strikes straight down. Almost every open-frame diode (Creality Falcon2, xTool S1) and every desktop CO2 (xTool P2S, OMTech Polar) works this way.

Galvo. The laser head stays still. Inside, “two high-speed mirrors, one for the X axis, one for the Y axis, each driven by a galvanometer motor” swing the beam across the work through a lens. Mirrors weigh almost nothing, so they can change direction far faster than a head on belts. Most fiber marking lasers and machines like the xTool F2, F1 Ultra and F2 Ultra are galvos.

The trade-off in one table

Speed, field and cutting descriptions summarize xTool’s Galvo vs Gantry explainer, which describes galvo cutting as “Shallow, mainly surface marking and thin materials” because “as thickness increases the angled beam produces visible taper.”

Manufacturer specs side by side

Look at the last column before the speed column. The S1’s bed has about 3.3 times the area of the F1 Ultra’s field (498 × 319 mm versus 220 × 220 mm), and more than 11 times the F2’s. A galvo can mark 30 keychains in a jig very quickly, but it cannot engrave an 18-inch sign without tiling.

Why rated speed is not job speed

A galvo rated at 10,000 mm/s does not finish a job 17 times faster than a gantry rated at 600 mm/s. Real time depends on:

• Acceleration and direction changes. Engraving is thousands of short back-and-forth lines. Mirrors win big here; a heavy head spends time slowing and turning.
• Power density. Faster movement puts less energy into each spot, so deep marks still need slower speeds or more passes.
• Line spacing (lines per mm). Finer detail means more lines regardless of motion system.
• Handling time. Loading, aligning and unloading often dominate on small items. Cameras and jigs matter as much as speed.

That is what we will measure once machines are in the lab: the same test file, engraved on each, timed start to finish.

Lab data pending — we'll measure real engraving time on our standard test file in seconds per protocol v1.0 on units we buy ourselves, then publish the numbers and raw data here.

1. xTool F2 (galvo)
2. xTool F1 Ultra (galvo)
3. xTool F2 Ultra (galvo)
4. xTool S1 40W (gantry)
5. Creality Falcon2 40W (gantry)

Lab measurement pending. Lab testing starts October 2026. We will engrave the same file on each machine and time it from start to finish. Test protocol v1.0 →

Cutting: why gantries win

A gantry’s beam always comes straight down, so the cut wall is square from top to bottom. On a galvo the beam arrives at an angle away from the center of the field. On a thin sheet that angle is invisible; on 6 mm plywood it produces a slanted edge.

Galvo cut ratings reflect this. xTool rates the F1 Ultra at 15 mm of wood and the F2 Ultra at 23 mm, but both figures are labeled multiple passes. The S1 40W’s 18 mm rating (cherry) is in one pass, per xTool. If cutting shapes out of sheet stock is a core part of your product line (earrings, puzzles, signs, boxes), put a gantry machine first.

Engraving small items: why galvos win

Galvo machines shine on the kind of order small personalization shops get all day:

• Names on keychains, dog tags, pens, knives, lighters and phone cases
• Logos on metal business cards and tools
• Batch marking in a jig: one layout, dozens of parts
• Jewelry, where a fiber or MOPA source marks bare metal and fine detail matters

A dual-source galvo such as the F1 Ultra adds a diode for wood and leather, but in the same small field.

Tumblers and round items

Both types can engrave tumblers with a rotary, and both approaches work differently:

• Gantry + rotary. The rotary replaces the Y axis: the cup turns while the head moves across. A full wrap is one continuous job. Speed is limited by the gantry.
• Galvo + rotary. The galvo marks a band (the part of the curve that stays close to focus), then the rotary turns the cup and the next band is marked. Rotaries like xTool’s RA2 Pro list the F1, F1 Ultra and F2 as compatible.

Galvos also have a fixed working distance between lens and part, so tall items and rotary setups must fit under the head. Check the maximum material height (xTool lists 145 mm for the F1 Ultra and 120 mm for the F2) against your tallest product. Our rotary guide and best laser for tumblers go deeper.

Hybrids are arriving

The line between the two is starting to blur. In September 2026 xTool published an explainer for its X1 “Hybrid Motion,” which it describes as integrating “gantry-based mechanical XY motion with optical galvo XY motion on a single chassis, forming one coordinated four-axis system,” built around a 55 W CO2 source. xTool had not published full specs or pricing on that page, so we have not added it to our database yet.

Software differences

Galvo and gantry machines speak different controller languages, which affects software:

• xTool’s galvos run xTool Studio, xTool’s current app (it replaced XCS for new products from August 2025).
• LightBurn splits its license by device type: Core ($99) covers GCode devices such as most diode gantries, and Pro ($199) adds DSP/Ruida and galvo controllers, per LightBurn’s pricing announcement.
• Important for xTool galvo owners: LightBurn’s documentation says that as of June 29, 2026, xTool firmware updates “eliminated LightBurn compatibility” for the F1, F1 Ultra, F1 Lite, F2, F2 Ultra and F2 Ultra UV, among others, and advises holding off on firmware updates while the two companies work on it. Check the current status before buying a galvo for LightBurn use.

Decision table

Next steps

• Not sure which wavelength you need? Read Diode vs CO2 vs Fiber.
• Put machines side by side in the Compare tool.
• Get a shortlist in two minutes with the Machine Matchmaker.
• Check what a machine class can cut with What Can It Cut?.