- Processing Talk
- Compare
- Kraft 20W vs M4 Pro
AtomStack Kraft 20W vs AtomStack M4 Pro
What Kraft 20W does better (9) and where M4 Pro wins (2) — every spec side by side.
Why is Kraft 20W better than M4 Pro?
- Work area (surface)1,594 cm² vs 100 cm²15.9×
- Max cutting depth – wood / plywood (one pass)18 mm vs 5 mm3.6×
- Enclosed (fully covered)Yes · M4 Pro: No
- Air assistYes · M4 Pro: No
- Built-in cameraYes · M4 Pro: No
- Work area width (X)498 mm vs 100 mm5×
- Work area depth (Y)320 mm vs 100 mm3.2×
- Two laser sourcesYes · M4 Pro: No
- Flame / fire detectionYes · M4 Pro: No
Why is M4 Pro better than Kraft 20W?
- Max cutting depth – acrylic5 mm vs 8 mm+60%
- Weight23.6 kg vs 2.8 kg8.4×
Specifications
Side by side
| General | ||
| Laser sources | Blue diode (≈455 nm), Infrared diode (1064 nm) | Blue diode (≈455 nm) |
| Motion system | Gantry (XY rails) | Gantry (XY rails) |
| Two laser sources | Yes | No |
| Wavelength | 1,064 nm | — |
| Laser power | ||
| Laser output power | 20 W | — |
| Second laser output power | 1.2 W | — |
| Work area | ||
| Work area | 498 × 320 mm | 100 × 100 mm |
| Work area width (X) | 498 mm | 100 mm |
| Work area depth (Y) | 320 mm | 100 mm |
| Work area (surface) | 1,594 cm² | 100 cm² |
| Conveyor / roll feeder support | Yes | — |
| Speed & cutting | ||
| Max engraving / travel speed | 600 mm/s | — |
| Max cutting depth – wood / plywood (one pass) | 18 mm | 5 mm |
| Max cutting depth – acrylic | 5 mm | 8 mm |
| Precision | ||
| Laser spot size | 0.03 mm | 0.03 mm |
| Positioning accuracy | 0.03 mm | — |
| Safety | ||
| Enclosed (fully covered) | Yes | No |
| Laser safety class | Class 1 (eye-safe, enclosed) | — |
| Flame / fire detection | Yes | No |
| Emergency stop button | Yes | — |
| Features | ||
| Air assist | Yes | No |
| Built-in camera | Yes | No |
| Autofocus / auto height | Yes | Yes |
| Rotary attachment support | Yes | Yes |
| Offline engraving (no computer) | Yes | — |
| Connectivity & software | ||
| Connections | USB, Wi-Fi | — |
| Wi-Fi | Yes | — |
| USB | Yes | — |
| SD / TF card | Yes | — |
| Phone app control | — | Yes |
| Compatible software | LightBurn, AtomStack Studio | LightBurn |
| LightBurn compatible | Yes | Yes |
| Size & power | ||
| Width | 791 mm | — |
| Depth | 610 mm | — |
| Height | 261 mm | — |
| Weight | 23.6 kg | 2.8 kg |
