Sculpfun S30 Ultra 22W vs Atomstack A40 Pro 40W
Spec-by-spec breakdown of the Sculpfun S30 Ultra 22W and the Atomstack A40 Pro 40W: scores, pricing, cutting performance, software, and what each machine is really best at.
7.9
Sculpfun S30 Ultra 22WSculpfun · Diode
The 22W S30 Ultra is what Sculpfun sells today as the top open-frame Ultra config (often bundled with LightBurn). Best cut headroom in the family; do not confuse with older 10W or 20W listings.
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7.6
Atomstack A40 Pro 40WAtomstack · Diode
Atomstack A40 Pro 40W is the 40W SKU on the Atomstack atomstack a40 pro line. Step up from A5 Pro with a stiffer frame and stronger cutting marketing (40W combined). Verify optical power on the listing: do not assume combined-watt marketing.
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Sculpfun S30 Ultra 22W
5 spec wins
Sculpfun S30 Ultra 22W wins on
Atomstack A40 Pro 40W
3 spec wins
Atomstack A40 Pro 40W wins on
Overall, the Sculpfun S30 Ultra 22W takes it: 7.9 vs 7.6 in our scoring.
| Spec | Sculpfun S30 Ultra 22W | Atomstack A40 Pro 40W |
|---|---|---|
| Overview | ||
| Brand | Sculpfun | Atomstack |
| Laser type | Diode | Diode |
| Main focus | Built mainly for cutting shapes and parts | Built mainly for cutting shapes and parts |
| Main objective | Faster cutting and deeper hobby cuts while keeping solid engraving capability | Maximum cut speed and depth in the line: engraving remains strong at tuned speeds |
| Best for |
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| Scores | ||
| Score | Best7.9 | 7.6 |
| Value score | 7.8 | Best8.1 |
| Ease of use | Best7.8 | 7.5 |
| Capability | Best7.6 | 7.2 |
| Build quality | Best8.0 | 7.2 |
| Pricing | ||
| Price | $690 635 € 22W module: common LightBurn bundle | Best $399 – $599 367 € – 551 € 40W optical module: verify SKU before buying |
| Hardware | ||
| Power | 22W diode | Best40W diode |
| Work area | 410 × 400 mm | 410 × 400 mm |
| Precision | 0.01 mm | 0.01 mm |
| Real-world performance | ||
| Sample engrave | Filled photo or logo on birch plywood ~7–11 min · 10 × 10 cm (4 × 4 in) | Filled photo or logo on birch plywood ~12–18 min · 10 × 10 cm (4 × 4 in) |
| Sample cut | Simple square cut-out from 3 mm basswood ~4–7 min · 10 × 10 cm (4 × 4 in) | Simple square cut-out from 3 mm basswood ~6–10 min · 10 × 10 cm (4 × 4 in) |
| Spot size | ~0.08 mm spot | ~0.08 mm spot |
| Max speed | 167 mm/s | 250 mm/s |
| Materials | ||
| Engraves | Best
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| Software & connectivity | ||
| Software | LightBurn, LaserGRBL | LightBurn, LaserGRBL |
| Connectivity | USB | USB |
| Verdict | ||
| TL;DR | The 22W S30 Ultra is what Sculpfun sells today as the top open-frame Ultra config (often bundled with LightBurn). Best cut headroom in the family; do not confuse with older 10W or 20W listings. | Atomstack A40 Pro 40W is the 40W SKU on the Atomstack atomstack a40 pro line. Step up from A5 Pro with a stiffer frame and stronger cutting marketing (40W combined). Verify optical power on the listing: do not assume combined-watt marketing. |
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“Best” highlights the strongest spec on paper for that row only — not an overall buying recommendation.
Frequently asked questions
Which is better: Sculpfun S30 Ultra 22W or Atomstack A40 Pro 40W?
In our scoring, the Sculpfun S30 Ultra 22W comes out ahead with 7.9/10 overall versus 7.6/10 for the Atomstack A40 Pro 40W. The detailed table above shows exactly where each machine wins.
Which is cheaper: Sculpfun S30 Ultra 22W or Atomstack A40 Pro 40W?
The Atomstack A40 Pro 40W is the more affordable option, starting around $399, versus $690 for the Sculpfun S30 Ultra 22W.
Which is better for a beginner: Sculpfun S30 Ultra 22W or Atomstack A40 Pro 40W?
The Sculpfun S30 Ultra 22W is the easier machine to start with: it scores 7.8/10 for ease of use, versus 7.5/10 for the Atomstack A40 Pro 40W.
What is the main difference between the Sculpfun S30 Ultra 22W and the Atomstack A40 Pro 40W?
The Sculpfun S30 Ultra 22W is a Diode laser geared toward cutting, while the Atomstack A40 Pro 40W is a Diode laser geared toward cutting. That difference drives most of the gaps you see in the comparison table.