- Processing Talk
- Compare
- B1 40W vs SF-A9 20W
Longer B1 40W vs Sculpfun SF-A9 20W
What B1 40W does better (5) and where SF-A9 20W wins (3) — every spec side by side.
Why is B1 40W better than SF-A9 20W?
- Laser output power40 W vs 20 W2×
- Work area (surface)1,980 cm² vs 1,600 cm²+24%
- Max cutting depth – wood / plywood (one pass)25 mm vs 20 mm+25%
- Work area width (X)450 mm vs 400 mm+12%
- Work area depth (Y)440 mm vs 400 mm+10%
Why is SF-A9 20W better than B1 40W?
- Air assistNo · B1 40W: Yes
- Flame / fire detectionNo · B1 40W: Yes
- Wi-FiNo · B1 40W: Yes
Specifications
Side by side
| General | ||
| Laser sources | Blue diode (≈455 nm) | Blue diode (≈455 nm) |
| Motion system | Gantry (XY rails) | Gantry (XY rails) |
| Two laser sources | No | No |
| Wavelength | — | 450 nm |
| Laser power | ||
| Laser output power | 40 W | 20 W |
| Work area | ||
| Work area | 450 × 440 mm | 400 × 400 mm |
| Work area width (X) | 450 mm | 400 mm |
| Work area depth (Y) | 440 mm | 400 mm |
| Work area (surface) | 1,980 cm² | 1,600 cm² |
| Work-area extension kit | Yes | — |
| Speed & cutting | ||
| Max engraving / travel speed | 600 mm/s | 600 mm/s |
| Max cutting depth – wood / plywood (one pass) | 25 mm | 20 mm |
| Precision | ||
| Laser spot size | 0.1 mm | 0.1 mm |
| Linear rails | — | Yes |
| Safety | ||
| Enclosed (fully covered) | No | No |
| Flame / fire detection | No | Yes |
| Emergency stop button | — | Yes |
| Tilt / movement sensor | — | Yes |
| Features | ||
| Air assist | No | Yes |
| Built-in camera | No | No |
| Autofocus / auto height | No | No |
| Rotary attachment support | Yes | Yes |
| Touchscreen / control panel | Yes | — |
| Connectivity & software | ||
| Connections | USB, SD / USB drive | USB, Wi-Fi, Bluetooth |
| Wi-Fi | No | Yes |
| USB | Yes | Yes |
| Bluetooth | — | Yes |
| SD / TF card | Yes | — |
| Phone app control | Yes | — |
| Compatible software | LightBurn, LaserGRBL | LightBurn, LaserGRBL |
| LightBurn compatible | Yes | Yes |
| Size & power | ||
| Width | — | 606 mm |
| Depth | — | 665 mm |
| Height | — | 110 mm |
| Weight | — | 6.2 kg |
