Automatic thermal overload protection and fan cooling. Setup & Operation Guidelines
Smooth groove side matching your wire diameter. Gasless Configuration (Flux-Cored)
The model number might be slightly different in some regions (e.g., CEM Dual MIG 120/1 or CEM Inverter MIG 120). Make sure you get the correct manual for the transformer-based version, as inverters have different diagnostics.
Supports 0.6mm to 0.8mm solid wire (with gas) and up to 1.0mm flux-cored wire (gasless). cem dual mig 120 manual
Loosen the tension arm and verify that the groove size on the drive roller matches your wire size (0.6 or 0.8).
Avoid using long, thin extension cords to prevent voltage drops. 2. Gas vs. Gasless Setup (Dual Functionality)
Typically 10% at 120A, scaling up to 60% or higher at lower amperages (e.g., 50A) Automatic thermal overload protection and fan cooling
Install the wire spool (usually 2 lbs) ensuring it unwinds from the bottom.
To keep your unit running reliably, follow these maintenance tips :
Open the side panel. Remove the spindle lock nut and place your wire spool onto the spindle. Make sure you get the correct manual for
CEM Dual Mig 120 Welder: The Ultimate Setup, Operation, and Troubleshooting Guide
) terminal and the ground clamp is connected to the terminal for flux-cored wire.
Even without the original manual, you can find success with this welder. The real expertise comes from the community of owners who have shared their experiences and solutions online.