The Ralli Wolf RT40 TIG 400IJ DC Inverter Welding Machine is a high-performance industrial welding solution designed for medium and heavy fabrication applications. With an adjustable output current range of 10–400A, this machine supports DC TIG and MMA (stick) welding, offering flexibility for different welding requirements.

Powered by IGBT inverter technology, the RT40 features high-frequency arc starting, adjustable up-slope and down-slope functions, and post-flow control to support stable arc performance and consistent weld quality. Its 415V three-phase input makes it suitable for industrial workshops, production facilities, pipe welding and heavy fabrication environments.

Key Features

400A welding output for demanding industrial applications.
Dual welding functions: DC TIG and MMA.
IGBT inverter technology for reliable welding performance.
High-frequency arc starting for convenient TIG arc ignition.
Adjustable up-slope and down-slope for greater control over welding current.
Post-flow function to help protect the weld area and tungsten electrode after welding.
Arc force and anti-sticking support for MMA welding.
Remote control function for added operating flexibility.
60% duty cycle at the manufacturer's specified rating.
Designed for medium and heavy fabrication work.

Applications

Medium and heavy metal fabrication
Pipe welding and tube-mill production
Welding of steel and stainless-steel components
High-pressure vessel fabrication
Industrial maintenance and repair
Construction and engineering workshops
Production and manufacturing facilities

Technical Specifications

Specification	Details
Brand	Ralli Wolf
Model	RT40
Product Type	DC TIG Inverter Welding Machine
Welding Current Capacity	400A
Input Supply	AC 415V ±15%, 50Hz
Phase	3-Phase
Power Rating	18.2 kVA
Output Current Range	10–400A
Rated Output Voltage	36V
No-Load Voltage	70V
Duty Cycle	60%
Inverter Technology	IGBT
Welding Functions	DC TIG and MMA
Arc Starting	High Frequency
Pre-Flow	0–5 seconds
Post-Flow	0–5 seconds
Efficiency	85%
Power Factor	0.93
Net Weight	Approx. 29.5 kg

Package Details

Package contents may vary by supplier. Typical listed welding accessories include:

TIG welding torch
Electrode holder
Earthing clamp
Relevant welding cables

Ralli Wolf RT40 TIG 400IJ 400A DC TIG and MMA Inverter Welding Machine with IGBT Technology, High-Frequency Arc Starting and Adjustable Up-Slope & Down-Slope – 415V 3-Phase

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