The Ralli Wolf RA40GT Digital ARC Welding Machine is a powerful, versatile inverter welding machine designed for professional welders, fabrication workshops, and industrial applications. With a maximum output of 400A and a wide current adjustment range of 30–400A, it is suitable for a variety of metal fabrication and maintenance tasks.

Powered by IGBT inverter technology, the RA40GT delivers stable arc performance, precise current control, and high weld penetration. Its digital display makes it convenient to monitor welding parameters, while the built-in Voltage Reduction Device (VRD) supports enhanced operator safety.

A key advantage is its multi-phase compatibility: it can operate on 230V single-phase or 415V two-phase and three-phase supplies, offering flexibility across different work environments. Despite its high output capacity, the machine weighs approximately 10 kg, making it easier to transport between workshops and job sites.

Key Features

Maximum welding current of 400A
Advanced IGBT inverter technology
Digital display for convenient current monitoring
Multi-phase input compatibility: 230V single-phase and 415V two-phase or three-phase
Adjustable output current from 30A to 400A
VRD safety function
Stable arc performance and high weld penetration
Energy-saving inverter design
Lightweight and portable construction
Supports 2.5–4.0 mm welding electrodes
40% rated duty cycle
Suitable for professional fabrication and industrial maintenance

Applications

Industrial metal fabrication
Structural steel welding
Construction and infrastructure projects
Shipbuilding and heavy engineering
Pipeline and metal installation work
Workshop welding
Industrial maintenance and repair
General-purpose electrode welding

Technical Specifications

Specification	Details
Brand	Ralli Wolf
Model	RA40GT
Product Type	Digital ARC Welding Machine
Inverter Technology	IGBT
Input Voltage	230V 1-Phase / 415V 2-Phase or 3-Phase ±15%
Frequency	50/60 Hz
Input Current	37A (1-Phase) / 15A (3-Phase)
Input Power	8.5 kVA (1-Phase) / 6.2 kVA (2-Phase) / 14 kVA (3-Phase)
No-Load Voltage	72V
Output Current Range	30–400A
Rated Duty Cycle	40%
Welding Electrode Diameter	2.5–4.0 mm
No-Load Consumption	70W
Efficiency	85%
Power Factor	0.93
Housing Protection Grade	IP21
Insulation Grade	F
Approximate Net Weight	10 kg
VRD	Yes
Display	Digital

Package Details

1 × Ralli Wolf RA40GT Digital ARC Welding Machine
Welding cables, electrode holder, and earth clamp: confirm the supplied package, as the manufacturer's catalogue lists welding accessories as optional.

Ralli Wolf RA40GT 400A Digital IGBT Inverter ARC Welding Machine, 230V Single Phase and 415V Two-Phase or Three-Phase for Industrial Fabrication

Have a question?