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- Ray7S 20W vs SF-A9 20W
Longer Ray7S 20W vs Sculpfun SF-A9 20W
What Ray7S 20W does better (2) and where SF-A9 20W wins (4) — every spec side by side.
Why is Ray7S 20W better than SF-A9 20W?
- Enclosed (fully covered)Yes · SF-A9 20W: No
- Laser spot size0.06 mm vs 0.1 mm+67%
Why is SF-A9 20W better than Ray7S 20W?
- Work area (surface)946 cm² vs 1,600 cm²+69%
- Flame / fire detectionNo · Ray7S 20W: Yes
- Work area width (X)305 mm vs 400 mm+31%
- Work area depth (Y)310 mm vs 400 mm+29%
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 | 20 W | 20 W |
| Work area | ||
| Work area | 305 × 310 mm | 400 × 400 mm |
| Work area width (X) | 305 mm | 400 mm |
| Work area depth (Y) | 310 mm | 400 mm |
| Work area (surface) | 946 cm² | 1,600 cm² |
| Speed & cutting | ||
| Max engraving / travel speed | 600 mm/s | 600 mm/s |
| Max cutting depth – wood / plywood (one pass) | — | 20 mm |
| Precision | ||
| Laser spot size | 0.06 mm | 0.1 mm |
| Linear rails | — | Yes |
| Safety | ||
| Enclosed (fully covered) | Yes | No |
| Laser safety class | Class 1 (eye-safe, enclosed) | — |
| Flame / fire detection | No | Yes |
| Emergency stop button | — | Yes |
| Tilt / movement sensor | — | Yes |
| Features | ||
| Air assist | Yes | Yes |
| Built-in camera | No | No |
| Autofocus / auto height | No | No |
| Rotary attachment support | — | Yes |
| Offline engraving (no computer) | Yes | — |
| Connectivity & software | ||
| Connections | Wi-Fi | USB, Wi-Fi, Bluetooth |
| Wi-Fi | Yes | Yes |
| USB | — | Yes |
| Bluetooth | — | Yes |
| Compatible software | — | LightBurn, LaserGRBL |
| LightBurn compatible | — | Yes |
| Size & power | ||
| Width | — | 606 mm |
| Depth | — | 665 mm |
| Height | — | 110 mm |
| Weight | — | 6.2 kg |
