The Ralli Wolf RA40HI is a rugged, industrial-grade 3-phase ARC welding machine engineered for demanding heavy-duty applications where power, precision, and safety are non-negotiable. Backed by Ralli Wolf's 60+ years of manufacturing expertise, this ARC series welder operates on a 3-phase AC 415V supply, making it a dedicated industrial solution for large-scale fabrication and construction environments.

The RA40HI is loaded with professional-grade features, including Voltage Reduction Device (VRD) technology for enhanced operator safety, Arc Force and Hot Start functions for reliable arc initiation and smoother welding on challenging materials, and an optional R C Unit for added versatility. Its precise ARC control ensures high penetration and consistent weld quality, while built-in ARC stability delivers dependable performance throughout extended welding sessions.

Engineered with robust protection systems, the RA40HI includes under/over voltage protection and over-temperature protection, safeguarding the machine and ensuring reliable operation even in fluctuating power conditions or demanding work environments. With an output current range of 20-320A and support for welding rods from 2.5mm to 4.0mm, this machine is built to handle serious structural and industrial welding tasks.

Despite its industrial-grade power output, the RA40HI remains manageable at 18 Kg, and its housing carries an IP21S protection grade with Class F insulation for durability in tough conditions. Manufactured to ISO 9001:2015 quality standards, the Ralli Wolf RA40HI is the ideal choice for industrial operations and professionals who need a dedicated 3-phase welding machine with advanced protection features and consistent, high-quality output.

Key Features

• 3-Phase AC 415V Operation – Dedicated industrial power configuration for heavy-duty use
• VRD (Voltage Reduction Device) – Enhanced safety feature for operator protection
• Arc Force & Hot Start – Reliable arc initiation and improved performance on difficult materials
• Optional R C Unit – Added versatility for specific welding requirements
• Under/Over Voltage Protection – Safeguards the machine against power fluctuations
• Over Temperature Protection – Protects the machine during extended, high-demand use
• Precise ARC Control – Stable, accurate arc for consistent, high-quality welds
• High Penetration – Strong weld penetration for thick structural sections
• ARC Stability – Consistent performance across extended welding sessions
• Light Weight & Portable – 18 Kg despite industrial-grade power output

Technical Specifications

Note: Welding accessories are optional and not included as standard.

Applications

• Heavy industrial and structural steel welding
• Large-scale fabrication and construction projects
• Shipbuilding and heavy engineering welding
• Pipeline and pressure vessel welding
• Bridge and infrastructure welding
• Industrial plant maintenance welding
• Continuous, high-duty-cycle welding operations
• 3-phase industrial power environments