This manual covers the technical specifications, operational setup, safety protocols, and routine maintenance necessary for safe and effective use.

Because the original printed manuals for these legacy machines are increasingly rare, this comprehensive guide serves as your definitive operational and technical reference manual. Technical Specifications Overview

Example: For thin sheet metal, use Min + 1. For thicker plate, use Max + 2. Wire Speed Dial This controls how fast the wire enters the weld pool. The wire will "push" the torch back or stutter. Too slow: The wire will burn back into the contact tip.

Press and hold the torch trigger. Watch the wire feed through the cable until it protrudes roughly 2 inches past the torch neck. Turn off the machine.

The CEM Dual Mig 120 is a versatile, compact wire-feed welding machine designed for hobbyists, automotive restorers, and light-duty workshop maintenance. Known for its portability and dual-purpose capability, this machine allows operators to switch between gas-shielded MIG welding and gasless flux-cored arc welding (FCAW).

is designed for simplicity and portability. While specific specs can vary by exact sub-model, standard 120A units typically feature: 230V Single-phase. Welding Range: Approximately 20A to 120A.

For flux-cored wire, the gun/torch should be negative (-) and the work clamp should be positive (+). Remove the Gas Regulator: No gas is required. 4. Operational Tips for Beginners To achieve high-quality welds with the CEM Dual MIG 120 , consider these operational tips:

A critical step often missed is setting the correct polarity.

Position the torch, lower your mask, and pull the trigger. 5. Troubleshooting Common Issues

Routine maintenance extends the lifespan of your CEM Dual Mig 120 and ensures consistent arc performance.