Uploaded July 2026 | Updated September 2026, 2 weeks ago

---

Learn how to set up and operate the WeldAir 1200W air-cooled handheld fiber laser welder—from initial assembly to the first test weld.

This step-by-step guide covers welding gun and wire-feeder assembly, matching the wire feed roller and contact tip to the wire diameter, first-startup laser settings, red guide light calibration, manual wire feeding and jam troubleshooting, shielding gas connection, focus adjustment, welding parameter setup, protective lens replacement, and welding wire replacement.

You will also see how to switch from 1.2 mm wire to 0.8 mm stainless-steel wire, plus the correct feed roller and liner setup for aluminum wire.

English and Spanish subtitles are included.

Always follow the equipment manual, required laser-safety procedures, and applicable local regulations before operating the machine.

00:00 Welding gun and scale-tube assembly
00:21 Wire-feed tube installation
01:46 Installing 1.2 mm welding wire
02:16 Matching the feed roller to wire diameter
02:39 Connecting the wire feeder
03:13 First-startup laser settings
03:28 Red guide light calibration
05:05 Manual wire feeding and jam troubleshooting
06:28 Shielding gas connection
06:54 Focus adjustment
08:35 Welding parameters and test weld
09:23 Protective lens replacement
10:33 Welding wire replacement
11:12 Installing 0.8 mm stainless-steel wire
13:29 Aluminum wire feed setup

#WeldAir #LaserWelding #HandheldLaserWelder