Cem Dual Mig 120 Manual [new] -

Flux-cored welding produces heavy fumes. Always weld in a well-ventilated outdoor space or use a dedicated fume extractor indoors.

None required. The chemical flux inside the hollow wire creates its own protective atmosphere as it melts. 6. Operating Instructions and Welding Techniques

Grind workpiece to clean steel. Increase power selector switches.

Always clean your workpiece before welding. Use an angle grinder or wire brush to remove rust, paint, oil, mill scale, and zinc coatings. Failing to clean the metal will result in porosity, cracking, and a weak weld joint. Selecting Settings As a general baseline guideline for carbon steel: cem dual mig 120 manual

Spray anti-spatter inside the gas shroud. Keep it free of slag build-up to ensure an even gas flow.

Need the official CEM Dual MIG 120 manual? This detailed guide covers setup, troubleshooting, technical specs, maintenance, and where to download the PDF. Master your welder today.

The manual emphasizes changing polarity based on wire type: Flux-cored welding produces heavy fumes

Carefully cut the end of the welding wire away from the spool. Hold the wire securely so it does not unravel.

Delivers the welding wire, shielding gas (if applicable), and electrical current to the workpiece.

Setting 4 (Max + 2): Maximum heat for thick plate welding up to 4mm-5mm. The chemical flux inside the hollow wire creates

Adjust the drive roll tension: It should be tight enough to feed the wire but loose enough to slip if the wire sticks to the contact tip.

Remove the gas nozzle and contact tip from the welding torch.

Standard industrial ratings often place these units at roughly 30% duty cycle at maximum output, meaning they require cooling after 3 minutes of continuous welding. Protection Class:

Tighten the spool knob so there is slight resistance, preventing the spool from overrunning.

Connect the Earth Clamp to the terminal (DCEN - Direct Current Electrode Negative). No gas shielding cylinder is required. Loading the Wire Spool and Feeding Isolate the machine from the mains electrical supply.