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- Alpha MK2 Extended 20W vs Kortek 5W
Algolaser Alpha MK2 Extended 20W vs Genmitsu Kortek 5W
What Alpha MK2 Extended 20W does better (6) and where Kortek 5W wins (1) — every spec side by side.
vs
7.7Power & cutting3.2
5.3Speed2.6
8.2Work area4.2
6.0Safety8.3
8.2Features & ease of use7.4
Why is Alpha MK2 Extended 20W better than Kortek 5W?
- Laser output power20 W vs 5 W4×
- Work area (surface)1,640 cm² vs 300 cm²5.5×
- Max engraving / travel speed333 mm/s vs 117 mm/s2.8×
- Built-in cameraYes · Kortek 5W: No
- Work area width (X)400 mm vs 150 mm2.7×
- Work area depth (Y)410 mm vs 200 mm2×
Why is Kortek 5W better than Alpha MK2 Extended 20W?
- Enclosed (fully covered)No · 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 | 455 nm |
| Laser power | ||
| Laser output power | 20 W | 5 W |
| Work area | ||
| Work area | 400 × 410 mm | 150 × 200 mm |
| Work area width (X) | 400 mm | 150 mm |
| Work area depth (Y) | 410 mm | 200 mm |
| Work area (surface) | 1,640 cm² | 300 cm² |
| Max workpiece height | — | 60 mm |
| Work-area extension kit | Yes | — |
| Speed & cutting | ||
| Max engraving / travel speed | 333 mm/s | 117 mm/s |
| Precision | ||
| Laser spot size | 0.175 mm | — |
| Safety | ||
| Enclosed (fully covered) | No | Yes |
| Laser safety class | — | Class 1 (eye-safe, enclosed) |
| Flame / fire detection | No | No |
| Emergency stop button | Yes | — |
| Built-in fume filter / purifier | Yes | — |
| Laser shield / filter cover | — | Yes |
| Features | ||
| Air assist | Yes | Yes |
| Built-in camera | Yes | No |
| Autofocus / auto height | No | No |
| Rotary attachment support | Yes | Yes |
| Offline engraving (no computer) | Yes | — |
| Connectivity & software | ||
| Connections | — | USB, Wi-Fi |
| Wi-Fi | — | Yes |
| USB | — | Yes |
| Phone app control | — | Yes |
| Compatible software | LightBurn, LaserGRBL | — |
| LightBurn compatible | Yes | — |
| Size & power | ||
| Width | 650 mm | — |
| Depth | 730 mm | — |
| Height | 240 mm | — |
| Weight | 6.5 kg | — |
| Rated power consumption | — | 60 W |
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