ComMarker · Fibre laser
ComMarker B4 20W
Compact 20 W fibre laser with galvo head and electric Z axis. Good for marking metal, unsuitable for wood.
Ideal for: Personalisers who want to mark metal parts such as jewellery, tags and tools.
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 shopin US dollars only: $1,399 (was $1,999)As 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
- compact fibre laser with electric height adjustment and dual red dot focusing
- Lenses for 110 x 110 and 200 x 200 mm
- LightBurn compatible
Cons
- open galvo design, protective enclosure and fume extraction extra
- untreated wood is hard to engrave (test)
- no EU shop, prices in USD only
Specs
| Price range | €1,000 to €1,500 |
|---|---|
| Price in the manufacturer's shop | in US dollars only: $1,399 (was $1,999) |
| Laser type | Fibre laser |
| Laser source | Fibre laser 1064 nm, 20 W (also 30, 50 and 100 W) |
| Power (optical, main source) | 20 W |
| Work area | 110 × 110 mm |
| Dimensions | 270 × 380 × 560 mm |
| Weight | 11 kg |
| Construction type | Galvo |
| Enclosure | open |
| Laser class | Class 4 |
| Speed (max.) | 15,000 mm/s (galvo) |
| Cutting according to the manufacturer | not specified by the manufacturer (20 W according to the manufacturer only for marking and engraving metal; 50 W version for light metal cutting) |
| Air Assist | no |
| Camera | no |
| Fume extraction | no, extraction (100 W) and protective enclosure optional |
| Rotary attachment | optional (D69, D80) |
| Software | LightBurn, EZCAD2 |
| Connectivity | USB |
| Materials (according to the manufacturer) | Stainless steel, Aluminium, Brass, Anodised metal, Plastic, Leather, Stone, Wood (varnished only) |
Source: Manufacturer or retailer specifications, As of 10/2026. Cutting figures are manufacturer values under ideal conditions.
Facts, not a buying recommendation. This page summarises manufacturer specifications and our assessment. If we recommend a device, it is explicitly marked “Our recommendation”. Figures marked ◇ do not come from the manufacturer; the source is linked. How we work