Fronius iWave

The intelligent TIG welding machine

Fronius iWave: outstanding performance in every TIG application

The iWave’s targeted heat input and improved ignition function give you precise control over the arc and significantly reduce ignition delays, resulting in reliable quality for every weld seam and every material. 

Do you face a variety of welding challenges in your day-to-day work? Then iWave Multiprocess PRO is the perfect choice for you. In addition to offering every standard TIG and plasma function, it also accommodates all MIG/MAG welding process variants.

More about iWave Multiprocess PRO
iWave highlights
Targeted heat input with CycleTIG
With CycleTIG, you can regulate the arc and keep the weld pool under control at all times. Short welding times help ensure a stable process, even when welding very thin materials.
Intuitive operation
The dynamic graphical menu navigation with plain-text display allows you to safely change settings on the device itself without any additional documentation being needed.
Multiprocess PRO—one machine for every process
Whether TIG, plasma, MIG/MAG, or more, the Multiprocess PRO (iWave 300i–500i) combines all relevant welding processes in a single machine. Its modular design means it can be expanded with compatible welding packages to meet various requirements.
Reproducible ignition
The RPI auto function ensures fast and reliable ignition regardless of the material’s condition and without having to manually adjust the ignition parameters. This improves process reliability and repeatability with everyday welding tasks.
Digital connectivity
Thanks to Wi-Fi, Bluetooth, and NFC, the iWave integrates seamlessly into existing environments, enabling simple user management, wireless peripherals, and straightforward maintenance.
Targeted heat input with CycleTIG
With CycleTIG, you can regulate the arc and keep the weld pool under control at all times. Short welding times help ensure a stable process, even when welding very thin materials.
Intuitive operation
The dynamic graphical menu navigation with plain-text display allows you to safely change settings on the device itself without any additional documentation being needed.
Multiprocess PRO—one machine for every process
Whether TIG, plasma, MIG/MAG, or more, the Multiprocess PRO (iWave 300i–500i) combines all relevant welding processes in a single machine. Its modular design means it can be expanded with compatible welding packages to meet various requirements.
Reproducible ignition
The RPI auto function ensures fast and reliable ignition regardless of the material’s condition and without having to manually adjust the ignition parameters. This improves process reliability and repeatability with everyday welding tasks.
Digital connectivity
Thanks to Wi-Fi, Bluetooth, and NFC, the iWave integrates seamlessly into existing environments, enabling simple user management, wireless peripherals, and straightforward maintenance.
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The iWave welding machine variants at a glance

iWave 190i AC/DC iWave 230i DC or iWave 230i AC/DC iWave 300i DC or iWave 300i AC/DC iWave 400i DC or iWave 400i AC/DC iWave 500i DC or iWave 500i AC/DC
3–190 A (TIG) 3–230 A (WIG) 3–300 A (TIG) 3–400 A (TIG) 3–500 A (TIG)
230 V single-phase or 120–230 V single-phase (MV) 230 V single-phase or 120–230 V single-phase (MV) 400 V three-phase or 200–600 V three-phase (MV) 400 V three-phase or 200–600 V three-phase (MV) 400 V three-phase or 200–600 V three-phase (MV)
Gas-cooled Gas-cooled or water-cooled Gas-cooled or water-cooled Gas-cooled or water-cooled Gas-cooled or water-cooled
TIG, MMA TIG, MMA TIG, MMA, and MIG/MAG (all WPs) TIG, MMA, and MIG/MAG (all WPs) TIG, MMA, and MIG/MAG (all WPs)
Connectivity (Wi-Fi, Bluetooth, NFC) as standard Connectivity (Wi-Fi, Bluetooth, NFC) as standard Connectivity (Wi-Fi, Bluetooth, NFC) as standard Connectivity (Wi-Fi, Bluetooth, NFC) as standard Connectivity (Wi-Fi, Bluetooth, NFC) as standard
Ethernet optional Ethernet optional Ethernet and SpeedNet as standard Ethernet and SpeedNet as standard Ethernet and SpeedNet as standard
iWave 190i–500i
The intelligent TIG welding machine for industrial applications and outstanding quality whatever the materials involved
To technical data
iWave 300i–500i
Multiprocess PRO for all processes: TIG (including high frequency ignition), plasma, MIG/MAG up to the CMT Welding Package, MMA, and CEL
To technical data
A true all-rounder, even for automated welding
Functions such as DynamicWire and CycleTIG or the iWave’s unlimited multiprocess capability bring numerous advantages and open up new possibilities for automated welding applications.

iWave controls

The iWave models feature a user interfacewith a plain-text display in over 30 languages. All settings are displayedvisually and can be adjusted using the touchscreen or the rotary and pushbutton. The controls are designed for industrial environments and are easy touse even when wearing gloves.

Multiprocess PRO—one welding machine for every process

TIG, plasma, and MIG/MAG processes are available with the iWave 300i, 400i, or 500i and the Multiprocess PRO hardware option. In addition to all TIG functions, you have access to every process variant from the field of MIG/MAG welding.

You can build your own flexible, modular system using compatible peripheral components such as welding torches and wirefeeders. What’s more, the welding packages can be tailored specifically to your needs. Choose from Standard, Pulse, PMC, LSC, CMT, PMC AC, and CMT AC. Additive manufacturing is also an option with the iWave.

Find out more about Multiprocess PRO

Connectivity and system integration

The iWave is designed as a networked welding system. Using standardized interfaces such as WiFi, Bluetooth, and NFC, you can integrate the device into existing environments, connect it to peripheral devices, and keep the operating system up to date. This transforms the iWave from a welding machine into an integral part of a coordinated system encompassing operating concept and user management to the integration of additional components.

RC Pedal TIG

  • For starting the welding process and controlling the welding current.

RC Panel Basic

  • For setting the welding and lowering currents.

Vizor Connect

  • When connected to the welding system, the welding helmet is darkened before the arc is ignited.
More about Vizor Connect

WeldConnect App

  • Step-by-step data capture of relevant information such as welding process, base material, weld seam profile, and shielding gas
  • Simple data entry via manual input or QR code scanning
  • Automatic calculation of optimal welding parameters for TIG and MIG/MAG applications
WeldConnect app
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CycleTIG

For targeted heat input

CycleTIG is based on the principle of stitch welding. Compared to standard pulse welding it offers additional setting options and new parameter combinations for improved welding results.

  • Outstanding weld seam appearance
    Supported by the tacking function
  • Targeted heat input
    Ideal for thin-sheet welding and edge applications
  • Easy weld pool control
    No burn through, even on corner and butt welds
  • Fewer temper colors
    For sensitive application areas
  • Easy handling
    For clean weld seams

Stable and reproducible TIG ignition

The iWave significantly improves ignition behavior during TIG welding. We have optimized the HF ignition process and adapted it to suit various electrode diameters.

RPI auto* reduces ignition delays by up to 71%**

With the RPI auto function, the welding machine automatically adjusts the ignition settings. This ensures fast and reproducible ignitions, even under variable conditions or as ignition performance declines, without any manual intervention.

* Only for iWave AC/DC
** Compared to RPI off | Test series conducted under laboratory conditions: 200 A welding current / 0.5 s welding time / 1000 ignitions

Other iWave functions

Automatic cap-shaping
This function allows a cap to be formed very quickly based on the set electrode diameter, saving a great deal of time.
Starting and stopping the welding process
Ignite the arc with SoftStart, high frequency (HF), and Touch HF. Stop the welding process using TIG Comfort Stop and arc break voltage.
Quick and easy tacking
The TACKING function causes the weld pool to oscillate briefly at the beginning. As a result, you can tack your components together in a single step because the material of both edges merges beautifully, without burning the edges. Very little to no temper coloration occurs at the tacking points. What’s more, no filler metal is required—even with small air gaps of up to 1.5 mm.
Wave shapes
Weld with freedom with iWave, as it allows you to select the wave shapes yourself for AC welding. In other words, the ones that characteristically produce your preferred weld properties for the welding task at hand. If necessary, you can also combine different wave shapes.
Pulse settings
Settings for the pulse current and pulse frequency (up to 2 kHz) are included in the standard package. OPT/i Pulse Pro gives you an extended range of functions, including a base current setting, duty cycle setting, pulse frequency up to 10 kHz, and DC wave shape.
Tungsten electrode protection
The automatic gas post-flow ensures that the tungsten electrode and weld seam are protected by a gas shield, preventing oxidation. The gas post-flow time is calculated on the basis of the set welding current and electrode diameter. In addition, a warning is displayed in the event of electrode overload.
Increasing and decreasing the main current
For temporarily higher power output (e.g., for welding over tack welds), slow and controlled lowering of the current (e.g., when changing the filler metal), and a configurable UpSlope or DownSlope for the intermediate current and lowering current.
Synchronized welding
Smashing the challenge: our “Sync Mode” makes simultaneous two-sided TIG welding with alternating current easier than ever before. This is the ultimate welding challenge, which we have solved by automatically synchronizing both arcs. As a result, two welders can work together in perfect sync.
WeldCube
The innovative advantage of Fronius TIG DynamicWire compared to conventional continuous wirefeeding in cold wire systems lies in its automatic self-regulation. The welding machine actively adjusts the wire speed to the welding behavior, torch position, and current conditions.
Automatic cap-shaping
This function allows a cap to be formed very quickly based on the set electrode diameter, saving a great deal of time.
Starting and stopping the welding process
Ignite the arc with SoftStart, high frequency (HF), and Touch HF. Stop the welding process using TIG Comfort Stop and arc break voltage.
Quick and easy tacking
The TACKING function causes the weld pool to oscillate briefly at the beginning. As a result, you can tack your components together in a single step because the material of both edges merges beautifully, without burning the edges. Very little to no temper coloration occurs at the tacking points. What’s more, no filler metal is required—even with small air gaps of up to 1.5 mm.
Wave shapes
Weld with freedom with iWave, as it allows you to select the wave shapes yourself for AC welding. In other words, the ones that characteristically produce your preferred weld properties for the welding task at hand. If necessary, you can also combine different wave shapes.
Pulse settings
Settings for the pulse current and pulse frequency (up to 2 kHz) are included in the standard package. OPT/i Pulse Pro gives you an extended range of functions, including a base current setting, duty cycle setting, pulse frequency up to 10 kHz, and DC wave shape.
Tungsten electrode protection
The automatic gas post-flow ensures that the tungsten electrode and weld seam are protected by a gas shield, preventing oxidation. The gas post-flow time is calculated on the basis of the set welding current and electrode diameter. In addition, a warning is displayed in the event of electrode overload.
Increasing and decreasing the main current
For temporarily higher power output (e.g., for welding over tack welds), slow and controlled lowering of the current (e.g., when changing the filler metal), and a configurable UpSlope or DownSlope for the intermediate current and lowering current.
Synchronized welding
Smashing the challenge: our “Sync Mode” makes simultaneous two-sided TIG welding with alternating current easier than ever before. This is the ultimate welding challenge, which we have solved by automatically synchronizing both arcs. As a result, two welders can work together in perfect sync.
WeldCube
The innovative advantage of Fronius TIG DynamicWire compared to conventional continuous wirefeeding in cold wire systems lies in its automatic self-regulation. The welding machine actively adjusts the wire speed to the welding behavior, torch position, and current conditions.

Other topics

Accessories
The iWave can be expanded as desired with compatible accessories, such as TIG welding torches, hosepacks, and operating controls, specifically tailored for ergonomics, component accessibility, and ease of use.
Customer story: welding with the iWave
Renowned Austrian contract manufacturer Ferrum joins metal components for national and international clients. Component accessibility, material, and design stipulations require that components be welded with both MIG/MAG and TIG processes.
To the reference
User management
The integrated permissions system gives you full control, allowing you to assign individual rights to each user. And if you want the perfect solution for assigning and administering permissions for multiple welding machines centrally, you need look no further than our Central User Management feature.
More about Central User Management
TIG Dynamic Wire
The welding machine actively adjusts the wire speed to the welding behavior, torch position, and current conditions, so you get consistent results even under varying conditions.

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