Atomstack A20 Pro V2 vs Atomstack A40 Pro V2
Technical comparison · Diode laser (405–460 nm)
These machines are not on the same scale: 20 W optical on the A20 Pro V2, 40 W on the A40 Pro V2. What changes is how many passes a cut takes and what you spend, about €400 more.
| Parameter | ||
|---|---|---|
| Awards | — | |
| Identity | ||
| Launch year | 2024 | 2024 |
| Use tier | F2 — Intermediate | F3 — Advanced |
| Price | ||
| Price (€) | ~300–600 € | ~700–1000 € |
| Universal specs | ||
| Weight (kg) | 6 kg | — |
| Work area (mm) | 400 × 365 mm | 400 × 400 mm |
| Power (W) | 120 W | — |
| Maximum speed | 400 mm/s | 400 mm/s |
| Declared precision | 0.02 mm | 0.02 mm |
| Category specs | ||
| Work area (short side) (mm) | 365 mm | 400 mm |
| Rated power (W) | 20 W | 40 W |
| Source technology | Diode | Diode |
| Max travel speed (mm/s) | 400 mm/s | 400 mm/s |
| Max processing speed (mm/s) | 400 mm/s | 400 mm/s |
| Wavelength (nm) | 455 nm | 455 nm |
| Min resolution (µm) | — | 20 µm |
| Autofocus | No | No |
| Rotary included/compatible | No | No |
| Passthrough | No | No |
| Supported software | Proprietary, LightBurn, Other | Proprietary, LightBurn |
| Frame | Open, optional enclosure | Open, optional enclosure |
| Air assist | Optional | Optional |
| Fume extraction | Optional filter | 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. | The system offers extended compatibility with the industry's leading standard software, ensuring operational flexibility across both Windows and macOS platforms. It fully supports LightBurn, the preferred choice for professional users seeking advanced management of layers, cutting parameters, and vectorization, as well as LaserGRBL, an open-source alternative ideal for simpler and more immediate engraving operations. Additionally, the machine is compatible with the manufacturer's proprietary mobile application, enabling remote control and file transmission via local Wi-Fi. This triple option allows users to adapt their workflow to specific project needs, supporting common vector and raster file formats such as NC, DXF, BMP, and JPG. |
MakerSpecs Awards
Nessun riconoscimento in questa fascia.
Best price Advanced
The lowest list price among advanced Diode laser (405–460 nm) machines: €850. The second cheapest starts at €1000. (Excluding manufacturer or retailer discounts.)
How we assign awards →The differences that matter
- 20 W against 40 W optical (values declared by the manufacturer) → the same plywood shape takes fewer passes on the A40, so less time at the laser.
- About €450 against about €850 → the A20 costs about €400 less.
- Bed 400 × 365 mm against 400 × 400 mm → a 40 cm square panel fits only on the A40.
- Memory card on the A20, phone app over local Wi-Fi on the A40 → it changes how files get to the machine.
Which one to choose
Choose A20 Pro V2 if…
you work thin plywood and acrylic in small runs and want to stay on a 20 W laser without spending more. A bed of 365 mm on the short side is enough for you and you accept more passes on cuts.
Choose A40 Pro V2 if…
you cut panels and repeated shapes every day and want fewer passes with 40 W optical, or you have parts 40 cm on a side. The trade-off is almost double the price.
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.