For flux core, drop voltage by one position and increase wire speed by ~1.5 steps. The manual says to use a “standard M6 contact tip” — wrong. It’s actually M8 (0.8mm tip for 0.030” wire) . Double-check yours. Many users online report buying the wrong tips because the manual is vague.
Here’s a draft for an engaging blog post about the — focusing on its manual, usability, and real-world welding scenarios. Title: Mastering the CEM Dual MIG 120: What the Manual Won’t Tell You (But Should) cem dual mig 120 manual
Use 0.030” (0.8mm) wire on 110V and 0.035” (0.9mm) on 230V for best results. The wire feed motor struggles with heavy wire at low voltage. Decoding the “Synergic” Claim The CEM Dual MIG 120 is not a true synergic machine (where you set wire speed and voltage auto-adjusts). Instead, it has 6 voltage positions and a separate wire speed dial. The manual gives a small table — but it’s wrong for some wire types. For flux core, drop voltage by one position
On , expect to weld up to ~3/16” (4.8mm) mild steel with flux core or solid wire + gas. On 230V , you can push to 1/4” (6.4mm) in a single pass, but the duty cycle drops quickly. Double-check yours
| Thickness | Voltage position | Wire speed (approx) | |-----------|----------------|----------------------| | 1/16” (1.6mm) | 2 | 3.5 | | 1/8” (3.2mm) | 4 | 5.5 | | 3/16” (4.8mm) | 5 (on 230V) | 7 |
If you already own one, keep this post bookmarked. If you’re thinking of buying one, just know: the manual is the worst part of the package — and that’s fine, because you won’t need it after the first hour. Have you used the CEM Dual MIG 120? Found a perfect setting for flux core? Drop a comment below — let’s build a better manual together.