Atomstack A20 Pro V2 Laser Engraver vs Sculpfun SF-A9 40W
Technical comparison · Diode laser (405–460 nm)
A20 Pro V2 Laser Engraver and SF-A9 40W are not direct competitors: very different prices (~3.8×). A20 Pro V2 Laser Engraver costs less (~€450) and is the entry-level choice; SF-A9 40W offers more capability at a higher price (~€1699). Judge them by budget, not head-to-head.
| Parameter |
A20 Pro V2 Laser Engraver
Atomstack
F2 · Intermediate
|
SF-A9 40W
Sculpfun
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Launch year | 2024 | 2024 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~300–600 € | 1699 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | — | 60.6 × 66.5 × 11 cm |
| Weight (kg) | 6 kg | 6.2 kg |
| Work area (mm) | 400 × 365 mm | 400 × 400 mm |
| Power (W) | 120 W | 240 W |
| Voltage (V) | — | 24 V |
| Maximum speed | 400 mm/s | 36000 mm/min |
| Declared precision | 0.02 mm | 0.1 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 | 600 mm/s |
| Max processing speed (mm/s) | 400 mm/s | 600 mm/s |
| Max cut depth per material | — | 20 mm compensato, 6 mm acrilico |
| Wavelength (nm) | 455 nm | 450 nm |
| Min resolution (µm) | — | 100 µm |
| Autofocus | False | False |
| Rotary included/compatible | False | False |
| Passthrough | False | False |
| Supported software | Proprietary, LightBurn, Other | Proprietary, LightBurn, Other |
| 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 LightBurn and LaserGRBL via USB, Wi-Fi, or Bluetooth. It also supports the proprietary Sculpfun application. |
The differences that matter
- Price: A20 Pro V2 Laser Engraver 450 € vs SF-A9 40W 1699 € — A20 Pro V2 Laser Engraver wins (+278%)
- Work area: A20 Pro V2 Laser Engraver 400×365 mm vs SF-A9 40W 400×400 mm — SF-A9 40W wins (+10%)
Which one to choose
MakerSpecs is an independent atlas. We don't sell products: this comparison links to both sheets, where you'll find complete data and official links.