Like any tool, this welder will last longer with regular care:
It can typically run Gas (with solid wire) or Gasless (with flux-core wire) by reversing the polarity.
What (steel, stainless, aluminum) are you trying to weld?
The drive roller has two grooves (e.g., 0.6mm and 0.8mm). Ensure the groove matching your wire diameter is aligned facing inward toward the wire path. cem dual mig 120 manual
Place your wire spool on the spindle. Ensure the wire feeds off the bottom of the spool toward the drive roller mechanism. Tighten the retaining nut so the spool has a slight drag but spins freely.
What (if any) are you experiencing with the machine?
If you ignore this table in the , you will get excessive spatter, poor penetration, or a unstable arc. Like any tool, this welder will last longer
Grind workpiece to clean steel. Increase power selector switches.
The CEM Dual MIG 120 is a lightweight, entry-level dual-voltage MIG welder marketed for hobbyists, DIYers, and light workshop tasks. It supports MIG welding (with flux-cored wire), typically offers adjustable voltage/wire feed settings, and often includes basic accessories (torch, ground clamp, spool, regulator/flowmeter for gas models). It’s intended for thin-gauge steel, mild steel fabrication, auto body patching, and general home repairs.
A potentiometer typically graduated from 1 to 10. This controls the DC motor feeding the wire into the torch. It must be balanced in tandem with your chosen voltage setting. Ensure the groove matching your wire diameter is
Connect the MIG torch to the Positive (+) terminal and the ground clamp to the Negative (-) terminal (DCEP - Direct Current Electrode Positive).
Straighten the torch cable. Power on the machine, remove the gas nozzle and copper contact tip from the torch end, and pull the trigger until the wire emerges. Replace the contact tip over the wire and screw it back down. 5. Troubleshooting & Maintenance Probable Cause Corrective Action Wire slips or feeds erratically
Like any tool, this welder will last longer with regular care:
It can typically run Gas (with solid wire) or Gasless (with flux-core wire) by reversing the polarity.
What (steel, stainless, aluminum) are you trying to weld?
The drive roller has two grooves (e.g., 0.6mm and 0.8mm). Ensure the groove matching your wire diameter is aligned facing inward toward the wire path.
Place your wire spool on the spindle. Ensure the wire feeds off the bottom of the spool toward the drive roller mechanism. Tighten the retaining nut so the spool has a slight drag but spins freely.
What (if any) are you experiencing with the machine?
If you ignore this table in the , you will get excessive spatter, poor penetration, or a unstable arc.
Grind workpiece to clean steel. Increase power selector switches.
The CEM Dual MIG 120 is a lightweight, entry-level dual-voltage MIG welder marketed for hobbyists, DIYers, and light workshop tasks. It supports MIG welding (with flux-cored wire), typically offers adjustable voltage/wire feed settings, and often includes basic accessories (torch, ground clamp, spool, regulator/flowmeter for gas models). It’s intended for thin-gauge steel, mild steel fabrication, auto body patching, and general home repairs.
A potentiometer typically graduated from 1 to 10. This controls the DC motor feeding the wire into the torch. It must be balanced in tandem with your chosen voltage setting.
Connect the MIG torch to the Positive (+) terminal and the ground clamp to the Negative (-) terminal (DCEP - Direct Current Electrode Positive).
Straighten the torch cable. Power on the machine, remove the gas nozzle and copper contact tip from the torch end, and pull the trigger until the wire emerges. Replace the contact tip over the wire and screw it back down. 5. Troubleshooting & Maintenance Probable Cause Corrective Action Wire slips or feeds erratically