Acmer · Diode laser
Acmer S2 20W
Compact open diode laser with 20 W and a 30 x 30 cm area. Inexpensive, but with very thin data.
Ideal for: Beginners with little space who mainly engrave.
Open device: You need laser safety glasses for the matching wavelength while working, and so do onlookers. More at Laser safety.
Price in the manufacturer's shop€278, Basic package 20 W4 W from €146As of 26 Oct 2026, can change dailyThere is no manufacturer's shop price for your region, the EU price is shown.
Pros and cons
Pros
- 20 W with air pump for around €278
- compact with a 30 x 30 cm area
- LightBurn compatible
Cons
- hardly any technical specifications from the manufacturer
- smaller work area than P1 and P2 at a similar price
- open, without enclosure and extraction
Specs
| Price range | under €500 |
|---|---|
| Price in the manufacturer's shop | €278, Basic package 20 W; 4 W from €146 (As of 26 Oct 2026) |
| Laser type | Diode laser |
| Laser source | Diode 20 W (wavelength for 20 W: not specified by the manufacturer, the manual states 450 nm ±5 nm for 4 to 12 W); also available as 4, 7 and 12 W |
| Power (optical, main source) | 20 W |
| Work area | 300 × 300 mm |
| Dimensions | 490 × 500 × 195 mm |
| Weight | not specified by the manufacturer |
| Construction type | Gantry |
| Enclosure | open |
| Laser class | Class 4 (derived, manufacturer does not state a class) |
| Speed (max.) | 167 mm/s (10,000 mm/min) |
| Cutting according to the manufacturer | not specified by the manufacturer for 20 W (manual cutting table only for 4 to 12 W) |
| Air Assist | Air pump included (20 W version) |
| Camera | optional (camera package) |
| Fume extraction | no, open frame; enclosure optional (R20) |
| Rotary attachment | optional (rotary pack, M3 or M4) |
| Software | Acmer Studio, AcmerTool, LightBurn, LaserGRBL |
| Connectivity | USB (according to the manual of the 4 to 12 W versions) |
| Materials (according to the manufacturer) | Wood, Paper, Leather, Acrylic (opaque), Fabric, Ceramic, Stone, Anodised metal |
Source: Manufacturer or retailer specifications, As of 10/2026. Cutting figures are manufacturer values under ideal conditions.
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