CAIBI EQUIPMENT ASSESSMENTComMarker

B4 50W

Compact 50W fibre galvo engraver for deep metal engraving, marking and small-object production, with LightBurn/EZCAD support.

CAIBI · PROVISIONALA much lower-cost route into real fibre engraving than premium consumer galvo systems, but the buyer takes on more setup and configuration responsibility. CAIBI should compare it on process capability, not just watts.

REVIEW EVIDENCE

Still provisional

The current review pool is mostly specialist/affiliate publishing rather than a broad set of established editorial labs, so CAIBI keeps the verdict provisional.

Read the source evidence

Pass Depth

Class-based review rates B4 as a strong entry into fibre/MOPA-style metal marking and stresses the importance of choosing wattage/source type for the job.

Read source ↗Laser Engraver Expert

Hands-on testing across multiple B4 wattages reports strong metal engraving and good LightBurn support, with higher variants becoming much more expensive.

Read source ↗Hobbyist Laser

Head-to-head owner testing shows the B4 family can be strong for fast monochrome metal marking but configuration matters and MOPA capability should not be assumed from the family name.

Read source ↗

WHERE TO BUY

Current buying routes

These are the regional prices and bundles CAIBI last checked. Always confirm the live price before buying.

UK1 checked route

manufacturerComMarker global store

The manufacturer offers 220V B4 50W configurations, but the store was priced in USD rather than a verified GBP regional transaction price when checked.

UK buyers must confirm delivered tax/duty, voltage and rotary/lens configuration. CAIBI does not convert the USD store figure into a GBP buying price.

Checked 5 Sep 2026 ↗

A 220V manufacturer route exists, but no checked GBP transaction price is recorded.

US1 checked route

manufacturerComMarker

$2,399 sale / $3,555 regular for 50W without rotary

ComMarker showed current 110V/220V, 20W/30W/50W/100W and rotary selections with active buy/add-to-cart controls when checked.

The recorded price is the 50W B4 without rotary. D69/D80 rotary packages and the 100W model cost more.

Checked 5 Sep 2026 ↗

The current 50W without-rotary sale figure is $2,399; rotary and lens choices alter the final total.

REQUIRED EXTRASFume extraction appropriate to marked materialsClass-appropriate enclosure/laser safety controls for the workspaceLightBurn licence only if using LightBurn rather than the included/basic software route

ONGOING CONSUMABLESMarking samples/workpiecesOptics cleaning supplies

WHAT IT UNLOCKS

Capabilities

50W fibre source class
Deep engraving on metals
Fast galvo scanning
Up to 200 mm lens options
LightBurn and EZCAD2 compatibility
Rotary options for cylindrical objects

LIMITS

What to know before buying

Small field compared with gantry lasers
Software/workflow is more technical than consumer craft machines
Fume extraction still required for many materials
Independent review quality is uneven and often affiliate-heavy
Exact B4 variants need careful configuration comparison

SOURCE

Key manufacturer specifications

Laser class: 50W fibre
Max field: Up to 200 mm lens option
Software: LightBurn / EZCAD2
Machine weight: Approx. 11 kg

SOURCE TRAIL

Specifications, documentation and pricing

manufacturerComMarker B4↗

Own this equipment? Share your experience