ComMarker B4 60W JPT MOPA Fiber Laser vs GWEIKE G2 Max 50W Fiber Laser Engraver
Head-to-head spec comparison to help you pick the right fiber laser for your needs.
ComMarker
$1099
GWEIKE
$1199
Spec-by-Spec Comparison
| Spec | ComMarker B4 60W JPT MOPA Fiber Laser | GWEIKE G2 Max 50W Fiber Laser Engraver |
|---|---|---|
| Wattage | 60 W | 50 W |
| Laser Type | MOPA | Q-Switched |
| Laser Source | JPT | Raycus |
| Work Area (W) | 175 mm | 150 mm |
| Work Area (H) | 175 mm | 150 mm |
| Galvo Speed | 10000 mm/s | 15000 mm/s |
| Color Marking | Yes | Yes |
| LightBurn | Yes | Yes |
| Autofocus | No | No |
| Weight | 5.5 kg | 6.5 kg |
| Software | LightBurn + EZCad2 (LightBurn requires COR file setup) | LightBurn + EZCad |
| Pulse Width | 2–500ns | N/A (Q-Switched, 20–200kHz frequency range) |
| Price | $1099 | $1199 |
| Rating | 9.0/10 | 7.8/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
ComMarker B4 60W JPT MOPA Fiber Laser
Pros
- JPT M7 MOPA source confirmed — wider frequency range (1–4,000kHz) and tighter pulse consistency than Raycus Q-switched alternatives at any price; the datasheet comes in the box
- 60W output at up to 10,000mm/s makes batch tumbler marking and production jewelry engraving run at business-viable throughput — no other LightBurn-compatible MOPA under $1,100 offers this combination
- LightBurn compatible via COR file — both LightBurn and EZCad2 workflows supported; JPT M7's full pulse-width parameter range is accessible from LightBurn's galvo interface once configured
- Rust cleaning at 60W is a documented bonus capability — removes surface oxide from steel without abrasives, useful as pre-treatment before color marking on weathered material
- Foot pedal input, job preview function, and fan that only runs during active engraving — the small-business production workflow details that distinguish a tool from a toy
Cons
- LightBurn setup requires loading a COR file and manually configuring galvo axis, Q-Pulse Width, and frequency settings — LightBurn forum (April 2026) shows new owners needing 30+ minutes before getting first correct results; not auto-detected
- No autofocus — manual Z-axis focus required for every workpiece height change; the B6 MOPA, ComMarker's current flagship, corrects this limitation
- B4 MOPA line is end-of-life inventory — ComMarker now promotes the B6 MOPA (autofocus, updated form factor, same 60W power); ASIN B0CGX9TBGQ remains on Amazon but community resources will increasingly reference the B6 going forward
- Color marking requires calibration per material batch — powder coat thickness and alloy composition vary even within the same tumbler brand, requiring fresh test grids for each new batch
- No enclosure — Class 4 open-beam 1064nm infrared; requires OD6+ eyewear at 60W and either ComMarker's Safety Enclosure Pro or a dedicated controlled workspace
GWEIKE G2 Max 50W Fiber Laser Engraver
Pros
- 50W Raycus fiber at 15,000mm/s is the highest wattage-speed combination in this price bracket — deep engraving to 5mm on metal is a documented standout capability no 30W machine at any price matches
- GWEIKE's LightBurn driver is the most actively maintained of any Chinese fiber laser brand — after the initial x/y axis calibration, LightBurn integration runs without the COR file gymnastics that ComMarker requires
- 150×150mm work area with 50W handles large plaques, long knife blades, and production batch runs on a single setup
- Active LightBurn settings ecosystem with a 37-material community settings pack (Etsy) specific to the G2 Max 50W covering metals, plastics, and stone
- 6.5kg portable form factor with detachable laser head — the same lightweight chassis as the G2 Pro 30W, not the heavy industrial frame you would expect at 50W output
Cons
- NOT a MOPA laser — earlier specs on this site incorrectly listed it as MOPA/JPT; it is a Raycus Q-switched fiber laser; no controllable pulse width, no MOPA-quality color marking libraries
- Calibration out of box requires x/y axis swap in LightBurn — documented by a verified owner (machinesformakers.com, Sep 2025); not a defect but a configuration step GWEIKE's documentation does not explain
- At $1,199 it costs $100 more than the ComMarker B4 60W MOPA — which has 60W, confirmed JPT MOPA source, and documented color marking libraries versus the G2 Max's 50W Raycus Q-switched
- Color marking is thermal oxidation, not MOPA — achievable on stainless and titanium with tuning but less consistent and less repeatable than a JPT MOPA; best-lasercutter.com explicitly notes this limitation
- No enclosure, no autofocus, and documentation rated poor by multiple owners — 50W Class 4 open-beam requires full PPE and a controlled workspace from day one
Our Verdicts
ComMarker B4 60W JPT MOPA Fiber Laser
The ComMarker B4 60W MOPA earns the top rating because no other machine under $1,100 combines 60W JPT MOPA, LightBurn support, and a work area that handles tumblers. It is the benchmark for serious makers and small business operators. Two things to verify before buying: first, check whether ASIN B0CGX9TBGQ is in stock — the B4 line is end-of-life, and if both the B4 and B6 MOPA are available at similar prices, the B6's autofocus makes it the stronger long-term buy. Second, budget time for LightBurn setup — the COR file configuration takes an hour the first time. For experienced users who know what they are buying into, this remains the benchmark purchase under $1,100.
GWEIKE G2 Max 50W Fiber Laser Engraver
The GWEIKE G2 Max 50W is the right machine when deep engraving speed is the priority and color marking consistency is secondary. At 15,000mm/s with 50W, it outpaces every other machine in this price range for batch deep engraving — knife blades, 3D grayscale on metal, and production-speed serial marking. It is not a MOPA laser (an error corrected from earlier data — it is Raycus Q-switched), and at $1,199 you are paying $100 more than the ComMarker B4 60W MOPA, which has more documented color capability and a confirmed MOPA source. If deep engraving speed is the use case, G2 Max wins. If color marking is the priority, the ComMarker B4 60W MOPA is the correct buy.