Full Digital CO2/MAG/MIG Welding Machine・Gouging Machine



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Catalog coming soon
* In addition to this product (welding power source), a wire feeder, remote control unit, torch, and gas regulator are required for welding.

Key functions

  • Full digital control achieves high-quality welding

  • High-precision encoder feedback control

  • Simple and easy-to-use operation panel

  • Equipped with DC gouging functions



DC gouging functions have been added to the basic welding functions. One unit serves a dual purpose.


Mutual compatibility of ancillary devices has been achieved with the GR3 series. The wire feeder and torch can be used without any modifications.

Strengths and Features

welding samples

Achieves high-quality welding with a smooth and stable arc start

This model enables a quick current rise when starting arc ignition, and a uniform wire tip shape through FTT control when completing welding, thereby achieving a consistently stable arc start. This model supports welding over a wide current range from a low current region to the rated current.


High-precision encoder feedback control

A motor equipped with an encoder performs high-precision wire feeding. The uniform wire feeding performance is maintained even when external factors occur, including changes in the power supply voltage and ambient temperature.


Easy-to-operate panel

A simple operation panel was adopted for the welding power source in conformity with use environments. Users can adjust all welding-related settings at their fingertips. The operation panel is bright and easy to see even in the welding frontlines and allows smooth settings in order from left to right.

gouging function

Equipped with DC gouging functions

500GG can also support gouging work by replacing the torch.

* For gouging, a gouging torch and DC gouging carbon are separately required.

Option List


Wire feeder

オプション トーチ

Welding torch

See details

Gouging torch
* Please use DC gouging carbon (standard type).

オプション ガス調整器

Gas regulator

For CO2 / MAG / MIG welding


Remote control unit

Cable length : 2 m


Connection cable

Please purchase separately as necessary.

See details


Water-cooling option


Rated input voltage V 200 AC (allowable fluctuation range:180 to 242)
Number of phases - 3-phase
Rated frequency Hz 50 / 60
Rated input kVa 28
kW 26.5
Maximum open circuit voltage V 77 DC*1
Rated duty cycle (10-minute cycle) % 100
Output current adjustment range A 60 to 500 DC*2
Output voltage adjustment range V 14 to 45 DC
Control method - IGBT inverter type
Memory functions - 9-channel storage and reproduction
Waveform control function - Digital setting
Applicable welding process - CO₂ / MAG / MIG
Applicable shielding gas - CO₂:100 % CO₂
MAG : 80 % Ar and 20 % CO₂
Stainless steel MIG : 98 % Ar and 2 % O₂
Applicable wire diameter mm 1.2 / 1.4 / 1.6
Applicable wire materials - Mild steel, Mild steel FVW*3, Stainless steel, Stainless steel FCW*3
Pre-flow time s (seconds) 0.0 to 5.0 (adjustable in 0.1 increments)
Post-flow time s (seconds) 0.0 to 5.0 (adjustable in 0.1 increments)
Arc spot time s (seconds) 0.3 to 10.0 (adjustable in 0.1 increments)
Input power supply terminal - With 2 m long cable (4 cores including a ground cable, M6 bolt fixing)
Output terminal - Copper plate terminal (with M8 bolt)
External dimensions (width x depth x height) mm 380 × 540 × 810
Mass kg 68

*1: When welding mode is selected
*2: When gouging mode is selected: 150 to 500 A DC
*3: FCW = Flux cored wire



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Website for Panasonic Shoyokai

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