Provides 4 distinct heat settings. Setting 1 (Min/1): Lowest heat for very thin sheet metals. Setting 2 (Min/2): Medium-low heat. Setting 3 (Max/1): Medium-high heat.
The CEM Dual MIG 120 is a classic, compact gas/gasless wire-feed welder highly valued by DIY enthusiasts, automotive restorers, and light-duty fabricators. Manufactured by the Italian company CEM (Costruzioni Elettromeccaniche Ancona), this machine is known for its robust transformer-based build and reliability.
The MIG 120 usually comes with reversible drive rolls for 0.6mm or 0.8mm wire. Ensure the groove matches your wire size.
If you own a CEM Dual MIG 120 welding machine, you already know it’s a robust piece of equipment favored by DIY enthusiasts, auto body repair specialists, and light industrial fabricators. However, like any sophisticated tool, its full potential is only unlocked when you fully understand its controls, setup, and maintenance schedules. This is where the becomes your most valuable asset. cem dual mig 120 manual
). Always follow the specific instructions included with your machine.
If you need help diagnosing a specific issue with your machine, please let me know: Is your wire inside the machine? Are you currently trying to weld with gas or without gas ? What thickness of metal are you attempting to weld?
If you need help tracking down a digital copy of a specific schematic or require specific part dimensions for replacement drive rollers, please let me know. To help further, tell me: Provides 4 distinct heat settings
Setting 4 (Max + 2): Maximum heat for thick plate welding up to 4mm-5mm.
| Specification | Detail | | :--- | :--- | | | 120V AC, 60Hz, 20A breaker recommended | | Output Current | 30 – 120 Amps (DC) | | Duty Cycle | 15% @ 120A (6 minutes on, 34 minutes cooling) | | Wire Diameter | 0.023” – 0.035” (0.6mm – 0.9mm) | | Spool Capacity | 2 lb (0.9 kg) or 8 lb (3.6 kg) with adapter | | Welding Processes | MIG (GMAW) & Flux-Cored (FCAW) | | Weight | 18.5 lbs (8.4 kg) |
Tighten tension knob; blow out or replace liner; swap out worn contact tip. Setting 3 (Max/1): Medium-high heat
Regularly clear spatter from the contact tip. Replace the tip immediately if the hole becomes oblong or oval, as this ruins arc stability.
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.
Connect your earth clamp to clean, bare metal on your workpiece. Ensure paint, rust, and scale are ground away.
