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
$3,699
GWEIKE
$2,499
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 | $3,699 | $2,499 |
| 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
- The catalog combines 60W MOPA and a 10,000mm/s speed claim; production throughput still depends on material, settings, field, and workflow
- 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
- Compare this 50W Q-switched configuration with current 60W MOPA offers by exact source, field, controller, and workflow rather than expired prices
- 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 remains the highest-rated configuration in this catalog for buyers who value 60W JPT MOPA capability and can work within its field size. The verified Amazon offer was $3,699 with limited stock on July 10, 2026, not under $1,100. Confirm the exact lens bundle, controller, seller terms, price, and stock before treating it as the right production purchase.
GWEIKE G2 Max 50W Fiber Laser Engraver
The GWEIKE G2 Max 50W is a Q-switched, 50W configuration for buyers prioritizing engraving speed over MOPA pulse control. The verified Amazon offer was $2,499 on July 10, 2026. Compare it against current 60W MOPA offers by exact source, controller, work area, and support rather than the expired $1,199 comparison.
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