Atomstack Kraft Lite 40W vs Sculpfun S30 Ultra 33W
Technical comparison · Diode laser (405–460 nm)
Anyone cutting long pieces beyond the work area or auto-focusing across materials of different thickness looks at the Kraft Lite, which has both features; anyone wanting a much bigger work area for less money looks at the S30 Ultra.
| Parameter | ||
|---|---|---|
| Identity | ||
| Launch year | 2025 | 2023 |
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | 2335 € | 1299.99 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | — | 80 × 84 × 22 cm |
| Weight (kg) | 23.6 kg | — |
| Work area (mm) | 500 × 320 mm | 590 × 595 mm |
| Power (W) | — | 156 W |
| Declared precision | — | 0.005 mm |
| Category specs | ||
| Work area (short side) (mm) | 320.0 mm | 590 mm |
| Rated power (W) | 20.0 W | 33 W |
| Source technology | Diode | Diode |
| Max cut depth per material | wood: 18mm, acrylic: 5mm, leather: 5mm, metal: 0.01mm, stone: 0.01mm | 20 mm (balsa wood), 15 mm (plywood), 15 mm (acrylic), 0.1 mm (steel) |
| Wavelength (nm) | — | 455 nm |
| Min resolution (µm) | — | 5 µm |
| Autofocus | Yes | No |
| Rotary included/compatible | — | No |
| Passthrough | Yes | No |
| Supported software | — | LightBurn, Other |
| Air assist | Optional | Included |
| Fume extraction | Optional filter | — |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | Compatible with LightBurn, LaserGRBL, and any software that outputs G-code to a GRBL controller. The board uses open GRBL firmware, allowing for customizable engraving parameters without locking you into proprietary software. LightBurn requires a separate license (about €99). | Compatible with LightBurn and LaserGRBL via USB or Bluetooth connection. Does not require the use of proprietary software. |
The differences that matter
- Price €2335 versus €1299.99 → the S30 Ultra costs almost half as much.
- Work area 500×320 mm versus 590×595 mm → a much larger piece fits in one pass on the S30 Ultra.
- Autofocus and passthrough only on the Kraft Lite → it focuses itself across different thicknesses and feeds pieces longer than the bed.
Which one to choose
Choose Kraft Lite 40W if…
Cutting long panels by feeding them through the machine (passthrough), or working materials of varying thickness without manually adjusting focus, happens on the Kraft Lite, which has autofocus and passthrough. The trade-off is a smaller work area (500×320 mm versus 590×595 mm) and a higher price.
Choose S30 Ultra 33W if…
Engraving or cutting large pieces in a single pass on a wide bed happens on the S30 Ultra, with a 590×595 mm work area versus the Kraft Lite's 500×320 mm. The trade-off is manual focus, with no autofocus, and no passthrough for pieces longer than the bed.
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.