300M / 350M / 400M / 500M / 650M
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2 –Mig/Mag Welding
This semi-automatic arc welding process can use argon and mixed argon inert shield gas (MIG process - Metal Inert Gas) or
CO2 active shield gas (MAG process - Metal Active Gas) to ensure a deoxidised atmosphere on welding zone. For some special
applications this machine is also suitable for fluxed cored wire arc welding (FCAW) with or without shielding gas.
WELDING METAL
SHIELD GAS
100% CO2 (Carbon dioxide)
80% Ar (Argon) + 20% CO2
Carbon steel
85% Ar +15% CO2
98% Ar + 2% CO2
Stainless steel
95% Ar + 5% CO2
Al Si (Aluminium/Silicon)
100% Ar
Al Mg (Aluminium/Magnesium)
100% Ar
CuSi (Copper/Silicon)
85% Ar + 15% He (Helium)
When compared with CO2, the use of mixed Ar+CO2 creates more stability to the welding arc with low spatters and a better
finishing of the welding seam. There are also other gas mixtures like Argon/Helium to increase penetration or Argon/Oxygen and
others. For specialized jobs, a consult to gas suppliers is advised.
2.1 - Description
The complete set of these machines consists of the power source, the connecting cable and the wire feeder with coil holder and
4 rolls wire feeding motor.
Front panel
CO2 seam
(Inductance plug nr. 1)
Argon/CO2 seam
(Penetration – inductance plug nr.2)
Argon/CO2 seam
(Filling – inductance plug nr. 3)
Fig.2 – Front panel
2 inductance plugs MIG 300
3 inductance plugs MIG 350 / MIG 400 / MIG 450 / MIG 500 /
MIG 650
Fig.1 – Inductance plugs
