- Processing Talk
- Compare
- K1 Ultra 36W vs SF-A9 20W
Ikier K1 Ultra 36W vs Sculpfun SF-A9 20W
What K1 Ultra 36W does better (6) and where SF-A9 20W wins (1) — every spec side by side.
vs
8.6Power & cutting8.1
9.2Speed8.0
5.4Precision5.0
8.5Work area7.7
6.4Safety7.1
9.3Features & ease of use7.4
Dimensions
Size comparison
K1 Ultra 36WSF-A9 20W
| K1 Ultra 36W | SF-A9 20W | Difference | |
|---|---|---|---|
| Height | 222 mm | 110 mm | +112 mm |
| Width | 650 mm | 606 mm | +44 mm |
| Depth | 750 mm | 665 mm | +85 mm |
| Weight | 12 kg | 6.2 kg | +5.8 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is K1 Ultra 36W better than SF-A9 20W?
- Laser output power36 W vs 20 W+80%
- Autofocus / auto heightYes · SF-A9 20W: No
- Max engraving / travel speed800 mm/s vs 600 mm/s+33%
- Work area (surface)1,681 cm² vs 1,600 cm²+5%
- Work area width (X)410 mm vs 400 mm+2%
- Work area depth (Y)410 mm vs 400 mm+2%
Why is SF-A9 20W better than K1 Ultra 36W?
- Weight12 kg vs 6.2 kg+94%
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 | 455 nm | 450 nm |
| Laser power | ||
| Laser output power | 36 W | 20 W |
| Work area | ||
| Work area | 410 × 410 mm | 400 × 400 mm |
| Work area width (X) | 410 mm | 400 mm |
| Work area depth (Y) | 410 mm | 400 mm |
| Work area (surface) | 1,681 cm² | 1,600 cm² |
| Speed & cutting | ||
| Max engraving / travel speed | 800 mm/s | 600 mm/s |
| Max cutting depth – wood / plywood (one pass) | — | 20 mm |
| Precision | ||
| Laser spot size | 0.1 mm | 0.1 mm |
| Positioning accuracy | 0.01 mm | — |
| Linear rails | — | Yes |
| Safety | ||
| Enclosed (fully covered) | No | No |
| Flame / fire detection | Yes | Yes |
| Emergency stop button | — | Yes |
| Tilt / movement sensor | — | Yes |
| Features | ||
| Air assist | Yes | Yes |
| Built-in camera | No | No |
| Autofocus / auto height | Yes | No |
| Rotary attachment support | — | Yes |
| Connectivity & software | ||
| Connections | USB, Wi-Fi, SD / USB drive | USB, Wi-Fi, Bluetooth |
| Wi-Fi | Yes | Yes |
| USB | Yes | Yes |
| Bluetooth | — | Yes |
| SD / TF card | Yes | — |
| Compatible software | LightBurn, LaserGRBL | LightBurn, LaserGRBL |
| LightBurn compatible | Yes | Yes |
| File formats | SVG, DXF, JPG, PNG, BMP, TIF | — |
| Size & power | ||
| Width | 650 mm | 606 mm |
| Depth | 750 mm | 665 mm |
| Height | 222 mm | 110 mm |
| Weight | 12 kg | 6.2 kg |
| Input voltage | 100–240 V | — |
