ComMarker B4 30W Fiber Laser Engraver vs ComMarker B4 60W JPT MOPA Fiber Laser
Head-to-head spec comparison to help you pick the right fiber laser for your needs.
ComMarker
$699
ComMarker
$1099
Spec-by-Spec Comparison
| Spec | ComMarker B4 30W Fiber Laser Engraver | ComMarker B4 60W JPT MOPA Fiber Laser |
|---|---|---|
| Wattage | 30 W | 60 W |
| Laser Type | Q-Switched | MOPA |
| Laser Source | Raycus | JPT |
| Work Area (W) | 110 mm | 175 mm |
| Work Area (H) | 110 mm | 175 mm |
| Galvo Speed | 10000 mm/s | 10000 mm/s |
| Color Marking | No | Yes |
| LightBurn | Yes | Yes |
| Autofocus | No | No |
| Weight | 4.2 kg | 5.5 kg |
| Software | LightBurn + EZCad2 (LightBurn Galvo license required separately) | LightBurn + EZCad2 (LightBurn requires COR file setup) |
| Pulse Width | N/A (Q-Switched) | 2–500ns |
| Price | $699 | $1099 |
| Rating | 8.2/10 | 9.0/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
ComMarker B4 30W Fiber Laser Engraver
Pros
- Dual-lens system included: 110mm lens (110×110mm field, sharper marks) and 200mm lens (200×200mm field, larger work) both in the box — two work areas for one price, rare in fiber lasers under $1,500
- Motorized electric Z-axis lifting built in — precise focus control without manual guessing; an autofocus-equivalent convenience normally seen in machines priced $2,000+
- LightBurn compatible with EZCad2 also included — both workflows supported; owners report LightBurn produces dramatically better deep engraving results than EZCad2 on this machine
- Deep engraving on aluminum, brass, steel, precious metals, and stone confirmed across multiple owner channels — 30W Raycus output handles production-depth marking reliably
- Handheld mode via detachable design — for large pieces or on-site marking that won't fit on the desktop platform, this is a workflow no other machine in this tier offers
Cons
- Q-switched only — no color marking on stainless steel; if color is needed, the separate B4 30W MOPA (ASIN B0DRY12JMW) has the JPT MOPA source; both use the B4 body but they are different machines
- LightBurn Galvo license not included — budget an additional $60–$80 beyond the machine price; a frequent surprise for buyers who expected plug-and-play LightBurn from existing licenses
- Initial LightBurn setup requires loading a markcfg7 config file and calibrating corfile field size for whichever lens is mounted — LightBurn forum threads show first-time owners spending hours on initial configuration
- No color marking — reinforcing the most important caveat: despite 'B4' appearing in ComMarker's MOPA lineup branding, this specific ASIN is the Raycus Q-switch variant; verify the ASIN if color marking is needed
- Customer support response is 24hr+ with documented language barriers — not viable for time-sensitive production downtime per LightBurn forum users
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
Our Verdicts
ComMarker B4 30W Fiber Laser Engraver
The ComMarker B4 30W is the machine to buy when deep, production-speed engraving on metals is the priority and color marking is not required. The dual-lens system (110mm + 200mm, both included) is a genuine differentiator — you can mark fine detail on jewelry at 110mm and switch to a full A4-size workpiece at 200mm without a second machine or aftermarket purchase. If color marking is in your roadmap at all, buy the OMTech 30W MOPA at a similar price or the B4 30W MOPA variant instead — you cannot add color capability to a Q-switched machine later. For monochrome production marking at volume, this is a fast, capable machine with real workflow flexibility.
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.