The Ralli Wolf RA40HD+ is a premium, industrial-grade 3-phase ARC welding machine built with IGBT module technology for maximum power, reliability, and control in the most demanding welding environments. Backed by Ralli Wolf's 60+ years of manufacturing expertise, this heavy-duty welder operates on a dedicated 3-phase AC 415V supply, positioning it as a serious industrial solution for large-scale fabrication, construction, and heavy engineering projects.

The RA40HD+ is packed with advanced professional features, including Voltage Reduction Device (VRD) technology for enhanced operator safety, Arc Force and Hot Start functions for dependable arc initiation and improved welding on challenging materials, and an optional R C Unit for added application versatility. Precise ARC control ensures high penetration and stable, consistent weld quality, while built-in ARC stability guarantees reliable performance even during extended, high-duty-cycle operation.

Engineered with robust dual protection systems, the RA40HD+ includes both under/over voltage protection and over-temperature protection, keeping the machine safe and operational even under fluctuating power supply conditions or intensive workloads. With an output current range of 20-400A and support for welding rods from 2.5mm to 5.0mm, this machine is purpose-built for large, heavy-section structural welding jobs that demand maximum amperage.

At 27 Kg, the RA40HD+ is a substantial industrial machine reflecting its high-capacity IGBT module design, built for stationary or semi-permanent workshop and site installations. Its housing carries an IP21S protection grade with Class F insulation, ensuring durability in tough industrial conditions. Manufactured to ISO 9001:2015 quality standards, the Ralli Wolf RA40HD+ is the top choice for industrial operations that need maximum power, advanced protection, and dependable performance from a dedicated 3-phase welding machine.

Key Features

• IGBT Module Technology – Advanced inverter technology for maximum power and control
• 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
• Wide Output Range – 20-400A output current for demanding heavy-section welding

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 major infrastructure welding
• Continuous, high-duty-cycle industrial welding operations
• Thick-section welding requiring maximum amperage
• 3-phase industrial power environments