xTool S1 40W
#11 in DiodeFull review
A powerful enclosed diode laser for hobby shops and small sellers who cut a lot of wood and want a big bed. Budget for the air assist pump.
Amazon $1,699$1,699
3.2/5
For hobbyists who want 40 W of cutting power with air assist in an open frame. The Amazon bundle price is high next to rivals.
- 40 WLaser power
- 400 x 400 mmWork area
- NoEnclosed
- 600 mm/sSpeed
Check price at Amazon$1,559
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 40 W cuts thick wood in fewer passes
- Built in automatic air assist keeps cuts cleaner
- Flame, tilt and temperature sensors stop the laser when something goes wrong
- WiFi, Bluetooth and USB connections
Cons
- Open frame, so goggles and an enclosure or vented space are needed
- Expensive on Amazon for an open frame machine
- Owners on the LightBurn forum report a slow break in before cuts were reliable
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its laser type. How we rank explains each one.
Specifications
| Model number | SF-A9 |
|---|---|
| Laser | |
| Type | Diode |
| Optical power | 40 W |
| Work area | 400 x 400 mm |
| Maximum speed | 600 mm/s |
| Features | |
| Enclosed | No |
| Camera | No |
| Air assist | Yes |
| Autofocus | No |
| Warranty | 1 year |
Alternatives in this laser type
Atomstack A20 Pro V2
#12 in DiodeFull review
A cheap 20 W open frame laser for hobbyists who want to cut 3 mm plywood and engrave quickly. Budget for air assist.
Amazon $389.99 AtomStack $369$369
Longer Ray5 10W
#14 in DiodeFull review
A cheap 10 W open frame engraver with a touch screen for hobbyists who want to run jobs offline.
Amazon $268.99$268.99
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