The Ralli Wolf RA40HD ARC 400HD is a heavy-duty IGBT inverter welding machine designed for industrial welding, fabrication, construction, and maintenance applications. Operating on a 415V three-phase power supply, it offers an adjustable welding current range of 30–400A for a variety of electrode welding tasks.

Equipped with Arc Force anti-sticking control and Hot Start functionality, the machine helps initiate the welding arc smoothly and maintain stable performance. Its Voltage Reduction Device (VRD) supports improved operator safety, while the dust-free cooling system is designed for demanding working environments. Generator compatibility makes it suitable for workshops and job sites where generator power is used.

Key Features

Maximum welding current of 400A
IGBT tubular inverter technology
415V three-phase power supply
Adjustable output current from 30A to 400A
Arc Force function to help reduce electrode sticking
Hot Start adjustment from 0–130A for easier arc initiation
VRD safety function
Dust-free cooling system
Designed for generator-powered operation
60% duty cycle
Suitable for 2.5–4 mm welding electrodes
Optional remote control facility

Applications

Industrial metal fabrication
Construction and structural steel welding
Pipe welding and installation
Shipbuilding and marine installation
Foundry operations
Industrial maintenance and repair
General-purpose electrode welding
Low-hydrogen and stainless-steel electrode welding

Technical Specifications

Specification	Details
Brand	Ralli Wolf
Model	RA40HD
Product Series	ARC 400HD
Machine Type	IGBT Inverter Arc Welding Machine
Input Voltage	415V ±15% AC
Phase	3-Phase
Frequency	50/60 Hz
Rated Input Current	18A
Rated Input Power Capacity	13 kVA
No-Load Voltage	65V
Welding Current Range	30–400A
Efficiency	85%
Duty Cycle	60%
Power Factor	0.93
Protection Class	IP21S
Electrode Diameter	2.5–4 mm
Inverter Technology	Tubular IGBT
Dimensions (L × W × H)	415 × 262 × 468 mm
Net Weight	22 kg

Package Details

1 × Ralli Wolf RA40HD ARC 400HD IGBT Inverter Welding Machine
Welding cables, electrode holder, earth clamp, and other accessories: confirm with the supplier. Welding accessories may be optional.

Ralli Wolf RA40HD ARC 400HD 400A Heavy Duty IGBT Inverter Arc Welding Machine, 415V 3-Phase for Industrial Welding and Metal Fabrication

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