Cem Dual Mig 120 Manual Guide
Typical box includes:
| Material | Thickness | Voltage | Wire Speed | Gas (L/min) | |----------|-----------|---------|------------|--------------| | 1 mm auto body | 20ga (0.8 mm) | 3 of 6 | 4 | 10 | | 2 mm mild steel | 14ga (1.9 mm) | 5 of 6 | 7 | 12 | | Flux-core, no gas | 2 mm | 4 of 6 | 6 | N/A |
Tuning method: Listen for steady crackling (like frying bacon) – not popping (too fast/high voltage) or stuttering (too slow/low voltage).
The heart of the CEM Dual MIG 120 manual is the tuning guide. Here is how to dial in your settings for a .8mm mild steel sheet using 0.8mm solid wire and CO2/Argon mix.
Step 1: Set voltage to position “3.” Step 2: Set wire speed to “4.” Step 3: Pull the trigger on a scrap piece. cem dual mig 120 manual
The manual provides a troubleshooting matrix for exactly these scenarios. It also stresses that you should always cut the wire to a sharp point (about 10mm protruding) after each weld to improve arc starting.
If you are looking for a machine that maximizes features per dollar, the CEM Dual Mig 120 might seem "basic" compared to digital inverters. However, if you are looking for welding performance per dollar, it is hard to beat.
It lacks the bells and whistles of modern machines, but it offers a superior arc, better wire feeding, and professional-grade build quality. It is a tool, not a toy.
Rating: 8.5/10 (Docked points only for weight and lack of modern digital convenience, but scores a 10/10 on build quality). Typical box includes: | Material | Thickness |
The CEM Dual MIG 120 is a compact, entry-level to semi-professional flux-cored (gasless) and gas-shielded (MIG) welding machine. It is widely used for DIY projects, auto body repair, light fabrication, and home workshop tasks. The term "Dual" refers to its ability to operate with or without shielding gas, while "120" typically denotes the maximum welding current output (120 Amps) or its input voltage compatibility (120V AC).
Common applications include:
The CEM Dual MIG 120 could be an excellent choice for:
However, for individuals or businesses with limited welding needs, or those constrained by power supply or budget, there might be more suitable options. The manual provides a troubleshooting matrix for exactly
For those who cannot find their printed manual, here are the exact specs that the CEM Dual MIG 120 manual lists:
| Specification | Value | | --- | --- | | Input Voltage | 230V / 50Hz (Single phase) | | Rated Input Current | 16A (Requires a standard household plug, though 13A fuse may blow at max power) | | Welding Current Range | 30A – 120A | | Duty Cycle | 60% @ 80A, 20% @ 120A | | No-load Voltage | 34V DC | | Wire Diameter Capacity | 0.6mm, 0.8mm (Solid); 0.8mm, 0.9mm (Flux-cored) | | Protection Class | IP21S |
Crucial Note: The manual warns that a 20% duty cycle at 120A means you can weld for 2 minutes, then must rest for 8 minutes. Exceeding this trips the thermal overload protector (the red light on the front panel).
Your CEM Dual MIG 120 manual includes a maintenance log. Here is the condensed version: