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- Alpha MK2 Extended 20W vs R2 1.3W
Algolaser Alpha MK2 Extended 20W vs Ortur R2 1.3W
What Alpha MK2 Extended 20W does better (5) and where R2 1.3W wins (2) — every spec side by side.
vs
7.7Power & cutting2.0
5.3Speed5.3
2.3Precision7.6
8.2Work area4.5
6.0Safety9.0
8.2Features & ease of use8.6
Dimensions
Size comparison
Alpha MK2 Extended 20WR2 1.3W
| Alpha MK2 Extended 20W | R2 1.3W | Difference | |
|---|---|---|---|
| Height | 240 mm | 214 mm | +26 mm |
| Width | 650 mm | 470 mm | +180 mm |
| Depth | 730 mm | 400 mm | +330 mm |
| Weight | 6.5 kg | 11.1 kg | −4.6 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Alpha MK2 Extended 20W better than R2 1.3W?
- Laser output power20 W vs 1.3 W15.4×
- Work area (surface)1,640 cm² vs 630 cm²2.6×
- Work area depth (Y)410 mm vs 210 mm+95%
- Weight6.5 kg vs 11.1 kg+71%
- Work area width (X)400 mm vs 300 mm+33%
Why is R2 1.3W better than Alpha MK2 Extended 20W?
- Enclosed (fully covered)No · Alpha MK2 Extended 20W: Yes
- Flame / fire detectionNo · Alpha MK2 Extended 20W: Yes
Specifications
Side by side
| General | ||
| Laser sources | Blue diode (≈455 nm) | Blue diode (≈455 nm), Infrared diode (1064 nm) |
| Motion system | Gantry (XY rails) | Gantry (XY rails) |
| Two laser sources | No | No |
| Wavelength | 450 nm | — |
| Laser power | ||
| Laser output power | 20 W | 1.3 W |
| Work area | ||
| Work area | 400 × 410 mm | 300 × 210 mm |
| Work area width (X) | 400 mm | 300 mm |
| Work area depth (Y) | 410 mm | 210 mm |
| Work area (surface) | 1,640 cm² | 630 cm² |
| Work-area extension kit | Yes | — |
| Speed & cutting | ||
| Max engraving / travel speed | 333 mm/s | 333 mm/s |
| Precision | ||
| Laser spot size | 0.175 mm | — |
| Positioning accuracy | — | 0.01 mm |
| Safety | ||
| Enclosed (fully covered) | No | Yes |
| Laser safety class | — | Class 1 (eye-safe, enclosed) |
| Flame / fire detection | No | Yes |
| Emergency stop button | Yes | — |
| Tilt / movement sensor | — | Yes |
| Built-in fume filter / purifier | Yes | — |
| Exhaust fan | — | Yes |
| Features | ||
| Air assist | Yes | Yes |
| Built-in camera | Yes | Yes |
| Autofocus / auto height | No | No |
| Rotary attachment support | Yes | — |
| Offline engraving (no computer) | Yes | Yes |
| Connectivity & software | ||
| Phone app control | — | Yes |
| Compatible software | LightBurn, LaserGRBL | — |
| LightBurn compatible | Yes | — |
| Size & power | ||
| Width | 650 mm | 470 mm |
| Depth | 730 mm | 400 mm |
| Height | 240 mm | 214 mm |
| Weight | 6.5 kg | 11.1 kg |
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