4 manufacturer photos · 1 / 4
Gweike · Fiber
Gweike G2 Fiber · 20W
Desktop fiber marker for metal and select plastics
All Gweike models →Add to compare →
Last updated How we evaluate
Released June 2023
Choose a power option
Details below update for the selected power option.
Showing specs for: 20W
TL;DR
Gweike G2 packages a 20W fiber galvo in a desktop form factor. Solid option if you want metal marking with Gweike ecosystem familiarity from their CO₂ lines.
Compare the Gweike G2 20W Fiber to…
Popular side-by-side matchups with full specs, scores, and an honest verdict.
Best for
What makes this machine stand out
Hardware and workflow features worth understanding before you buy : not just wattage on a label.
Fiber metal marking
A fiber source marks bare and stainless steel without spray : the right tool for tools, jewelry, and industrial tags. It will not cut wood or acrylic; pair it with a diode or CO₂ if your shop needs organics too.
LightBurn compatible
LightBurn support means advanced layers, camera tools, and workflows many makers outgrow the stock app with. Confirm your exact controller board before assuming full features : some machines need a paid license separately.
Galvo speed class
Galvo mirrors move the beam instead of a heavy gantry : engraving speeds that feel instant on small fields. Trade-off: tiny work area versus a flatbed diode; ideal for jewelry, tags, and batch marking, not large signs.
Our verdict
Ideal if you
Gweike G2 Fiber 20W fits shops that mark stainless, aluminum, and tools daily without a CO₂ bay. A solid bench option for jewelry, tags, and small batches.
Skip if you
Skip if wood, leather, or cast acrylic pay your bills. Deep metal cutting and large industrial panels often need more fiber headroom (30W or 50W) or a different machine class.
Pros
- Fiber marks metal: does not cut wood or acrylic
- Software listed on the profile: test your workflow (LightBurn or maker app) on scrap first
Cons
- Does not cut wood, leather, or acrylic: metal marking workflows only
- Fume extraction still matters for coated metals and marking sprays
What this machine is for
Entry fiber marking on small metal parts
Desktop fiber marking for jewelry-scale and test jobs
Laser spot size
~0.02 mm spot
Motion precision: 0.01 mm
Sample engrave job
~4–9 min
10 × 10 cm (4 × 4 in)
Sample cut job
Not a cutter
Reference benchmark: same job size on every machine so you can compare times fairly. Times are estimates for the reference job above; your design complexity and settings will change them.
Materials
- · Stainless steel
- · Aluminum
- · Brass
- · ABS
- · Some coated metals
Accessories & add-ons
Typical inclusions and add-ons for this profile : confirm your SKU.
- Optional
Enclosure / cabinet
Third-party enclosure improves smoke control and safety
- Recommended
Laser safety glasses
~450 nm diode: OD rated for your wavelength
- Recommended
Fire extinguisher
Editorial guidance : not a live parts list. See also: Ventilation setup · Safety basics
Practical notes
Beginner notes
This profile is the 20W SKU on Gweike G2 Fiber. Read the TL;DR and benchmarks above, then compare other power options via the chips before buying.
Pro tips
Fix parts firmly; start with low power test squares on scrap metal. Rotary adds complexity: budget time to learn indexing.
Pro / technical specsRaw numbers for experienced users comparing machines.
- Max speed (spec)
- 7,000 mm/s
- Avg engrave speed
- 500–2,000 mm/s marking
- Avg cut speed
- N/A
Alternatives to the Gweike G2 20W Fiber
Machines in the same space, picked from our database by type, price, and score.
ComMarker · Fiber · $1,299 – $1,899
The ComMarker B4 is a popular entry-level fiber galvo engraver for jewelry, tools, and metal gifts. Marks stainless, aluminum, and brass without spray. Small marking field: not a cutter for wood or acrylic.
Monport · Fiber · $2,599 – $3,799
Monport GT 30W brings split-cabinet fiber marking with autofocus: useful for varying part heights. Strong alternative to Gweike G6 in the same class.
Atomstack · Fiber · $1,299 – $1,799
AtomStack A20 Pro 1064nm is a fiber marking variant for metal engraving without a separate galvo bench. Different machine class than diode A20 Pro V2: buy for metal marking, not wood cutting.