Atomstack A20 Pro V2 vs Sculpfun S30 Pro Max 20W
Technical comparison · Diode laser (405–460 nm)
Same declared optical power, 20 W: the choice is not about cutting but about what the S30 Pro Max adds for about €450 more, namely a finer declared precision.
| Parameter | ||
|---|---|---|
| Identity | ||
| Launch year | 2024 | 2022 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~300–600 € | 899.99 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | — | 55.5 × 59.5 × 21 cm |
| Weight (kg) | 6 kg | — |
| Work area (mm) | 400 × 365 mm | 370 × 360 mm |
| Power (W) | 120 W | 120 W |
| Voltage (V) | — | 240 V |
| Maximum speed | 400 mm/s | 6000 mm/min |
| Declared precision | 0.02 mm | 0.005 mm |
| Category specs | ||
| Work area (short side) (mm) | 365 mm | 360 mm |
| Rated power (W) | 20 W | 20 W |
| Source technology | Diode | Diode |
| Max travel speed (mm/s) | 400 mm/s | 100 mm/s |
| Max processing speed (mm/s) | 400 mm/s | 100 mm/s |
| Max cut depth per material | — | 12 mm (acrylic), 10 mm (wood) |
| Wavelength (nm) | 455 nm | 455 nm |
| Min resolution (µm) | — | 5 µm |
| Autofocus | No | No |
| Rotary included/compatible | No | No |
| Passthrough | No | No |
| Supported software | Proprietary, LightBurn, Other | LightBurn, Other |
| Frame | Open, optional enclosure | — |
| Air assist | Optional | Included |
| Fume extraction | Optional filter | — |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The software compatibility of the device is extensive and aligns with the industrial standards of the maker sector. It natively supports both LaserGRBL, a free and open-source option suitable for basic engraving operations, and LightBurn, the most popular paid professional platform for advanced management of layers, cutting parameters, and complex vector formats. Control can be managed directly via a wired USB connection from a computer or in offline mode, using memory cards to load processing files. The machine responds to standard G-code commands, allowing experienced users fine customization of acceleration and speed parameters through the configuration of the internal firmware, without constraints linked to proprietary and closed-source cloud ecosystems. | Fully compatible with standard software like LightBurn and LaserGRBL via USB or Bluetooth connection. It does not require proprietary platforms. |
The differences that matter
- About €450 against about €900 → the Atomstack costs about €450 less.
- Declared precision 0.02 mm against 0.005 mm → the difference shows on tiny text and very dense engraving.
- Bed 400 × 365 mm against 370 × 360 mm → a piece 40 cm wide fits on the Atomstack, not on the Sculpfun.
- Memory card for offline work on the Atomstack, Bluetooth or USB on the Sculpfun → it changes how files get to the machine.
Which one to choose
Choose A20 Pro V2 if…
you want a 20 W laser for plywood, acrylic and ordinary engraving without paying almost double, and you load files from a memory card as well. A declared precision of 0.02 mm is enough for you.
Choose S30 Pro Max 20W if…
you engrave tiny text, logos and very dense raster work, and need cuts of up to 12 mm in acrylic and 10 mm in wood: these are limits declared by the manufacturer, not everyday work. The trade-off is almost double the price and a slightly shorter bed on the long side.
Where to buy
Paid link: the price for you does not change. Methodology
MakerSpecs is an independent atlas. We don't sell products: the purchase links are the same as on the two product sheets and don't influence the verdict. The sheets have the complete data.