The Ralli Wolf RA40HI is a heavy-duty industrial ARC welding machine designed for professional metal fabrication, structural welding, construction, and industrial maintenance. Powered by a 415V three-phase supply, it provides an adjustable welding current range of 30–400A for demanding welding applications.
Featuring IGBT inverter technology, the RA40HI is designed for stable arc performance, precise current control, and strong weld penetration. Its VRD (Voltage Reduction Device), Arc Force and Hot Start functions support safer operation, easier arc initiation, and consistent welding performance. Built-in under-voltage, over-voltage, and over-temperature protection helps protect the machine in demanding working environments. An optional remote-control unit provides additional operating flexibility.
Key Features
400A maximum welding current
IGBT inverter technology
415V three-phase power supply
Adjustable welding current from 30A to 400A
VRD safety function
Arc Force and Hot Start functions
Stable arc performance and high weld penetration
Under-voltage and over-voltage protection
Over-temperature protection
Optional remote-control unit
Energy-efficient inverter operation
Suitable for industrial welding and heavy fabrication
Applications
Heavy-duty metal fabrication
Structural steel welding
Industrial construction projects
Shipbuilding and heavy engineering
Pipeline and pressure vessel fabrication
Bridge and infrastructure projects
Industrial plant maintenance and repair
General-purpose, low-hydrogen, and stainless-steel electrode welding
Technical Specifications
Specification
Details
Brand
Ralli Wolf
Model
RA40HI
Product Type
Industrial ARC Inverter Welding Machine
Inverter Technology
IGBT
Input Voltage
AC 415V ±15%
Phase
3-Phase
Frequency
50 Hz
Input Power
13 kVA
Output Current Range
30–400A
Duty Cycle
60%
Welding Process
ARC / MMA
VRD Function
Yes
Arc Force
Yes
Hot Start
Yes
Protection Features
Under-voltage, over-voltage and over-temperature protection
Approximate Net Weight
22 kg
Remote Control
Optional
Package Details
1 × Ralli Wolf RA40HI 3-Phase Industrial ARC Welding Machine
Welding cables, electrode holder, and earth clamp: confirm with the supplier, as accessories may be optional.
