Handheld Laser Welder: What It Welds and What to Check Before You Buy

The short answer

A handheld laser welder is a fiber laser in a gun you hold like a TIG torch. A wire feeder and shielding gas usually come with it. Listed prices for the models we checked run from $3,499.99 to $12,499 for the main units, and the makers claim welds from about 0.5 mm up to 5 mm in steel. Those are claims. We have not tested any machine.

The main attractions, as reported by Miller Electric and by Fabricating & Metalworking, are lower heat input, less distortion and a shorter learning curve than TIG. The main drawbacks are tighter fit-up tolerance, a Class 4 laser to manage and a limit on thick joints without filler wire.

What the makers say these machines weld

Prices as listed on each maker's page on October 4, 2026. The xTool 1200W is sold at a higher price, but xTool's own pages disagree on it, so we left it out of the table. See what a laser welder costs to own for the full picture.

Where the thickness claims run out

Fabricating & Metalworking reports that filler wire is needed "for joints requiring penetration beyond approximately 2 mm" and calls handheld laser welding "not a universal replacement for conventional welding". Take the thickness column above as the best case with the right wire, gas and settings, from the people selling the machine.

xTool cites an SGS test to ISO 15614-1 (tensile, dye penetrant and metallographic checks) for its 5 mm claim. That is more than most makers offer. It is still one test on one setup, and it does not qualify your own welds.

What a handheld laser welder is good at

• Thin stainless and sheet metal. Miller says laser welding puts in roughly 50% of the heat of TIG or MIG on thin carbon steel, with a narrow heat-affected zone and less warping.
• Clean appearance. Miller notes no arc-related spatter and minimal cleanup after the weld.
• Speed on long seams. Fabricating & Metalworking reports "substantially higher travel speeds" than TIG. Miller says TIG is better suited to short welds.
• A faster start for new operators. Fabricating & Metalworking says new operators can often produce acceptable cosmetic welds much sooner than with TIG.

Where it struggles

• Fit-up. Both sources agree that laser welding tolerates less gap than arc processes by default. Miller says MIG is better "for joints with variable fit-up".
• Reflective metals. For aluminum and copper we found only manufacturer data and no independent source.
• Code and structural work. We found no independent source on handheld lasers for code welding. Ask your inspector before you assume a procedure will pass.

Ten things to check before you buy

• Voltage and circuit. Some units take 100 to 250 V. Others need 220 to 240 V and 20 A or more.
• Cooling. Air or water, and where the chiller sits.
• What the box contains: wire feeder, wire, nozzles, lenses and eyewear.
• Eyewear wavelength band. Fiber welders run near 1080 nm. See our safety guide.
• Key switch, remote interlock and emergency stop. Class 4 products need them.
• The FDA accession number for the model. Ask for the number, not for the word "compliant".
• Who pays duties and return shipping.
• Warranty length and what it excludes.
• Where the shielding gas comes from and what a refill costs near you.
• Whether you have a plan for fume extraction.

What we could not verify

• Independent weld-quality data for any of these models.
• Gas and wire consumption per hour.
• Cooling and plug type on the xTool MetalFab, and weight and plug type on the ArcCaptain LW1200.

Ready to compare? See our best handheld laser welder shortlist.