UNIMIG 425 SWF 

 
The UNIMIG 425 SWF is a powerful workhorse with an exceptionally high duty cycle. It is ideally suited for medium to heavy fabrication industries as well as rural applications. Combining smooth arc characteristics with complete reliability, the UNIMIG 425 SWF is the unit to satisfy all the demands of the professional welder.
 
The UNIMIG 425 SWF features a completely enclosed KT 50 wire feed unit which helps prevent dust and moisture fouling your wire and contaminating your weld. Fitted standard with a geared four wheel roller drive system ensuring consistent wire feed and smooth welding. It comes with a set of fully covered 10 metre interconnecting cables and wheels for increased maneuverability.
 
  • UNIMIG 425 SWF MIG Welder
  • KT 50 Seperate Wire Feeder complete with
  • 10 metre interconnecting cables
  • SB364M Sure Grip Ergo MIG torch with
  • Euro connection
  • 10M Earth lead with 35/50 Dinse style connections
  • UNI-FLAME Twin Gauge Argon Regulator
  • 2M Gas Hose Complete with fittings
  • High Duty Cycle operation 50% at 400 Amps
  • 30 Voltage positions
  • Dual inductance settings for optimum arc 
  • characteristics on thin or thick materials
  • 2T-4T trigger operation (MIG Only)
  • Stich and Spot welding modes
  • Adjustable Burnback control
  • SPECIFICATIONS

  • Part NumberKUM425SWF
  • Primary Input Voltage415V 3 Phase
  • Voltage steps30
  • Duty Cycle 40 Deg C60% @ 400Amps / 100% @ 310Amps
  • Welding Voltage Range16 - 34V
  • Wire Size0.6 - 1.6mm Ferrous
  • 0.9 - 1.6mm Aluminium
  • 0.6 - 1.6mm Stainless Steel
  • 0.9 - 2.4mm Flux Cored
  • Dimensions (mm)1270 x 940 x 600
  • Weight (Kgs)182
  • Torch optionsSB38 4M & 5M / ARB 400 / 12ft / 15ft & 17ft TWC
  • OptionsAmp-Volt Meter - Part No: AVOPTION
 

Choosing the Right UNIMIG Machine for You

Whether you’re a professional welder with industry experience or a weekend warrior with a welding hobby, the first thing you need is a welder.

There are a few factors that you should consider before diving into buying a machine. These include the material, the material thickness, the weld type (MIG, TIG or stick), the power, and, most importantly, your budget.

The material you want to weld, and its thickness, will determine the welding process that will work best for you, especially as not every welder can do every material.

What material are you going to be welding?

MIG

TIG

STICK

mild steel

stainless steel

aluminium

copper

bronze

mild steel

stainless steel

aluminium

copper

bronze

zinc alloys

mild steel

stainless steel

cast iron

How thick is the material you plan to weld?

 

MIG

TIG

STICK

< 200A

1mm-10mm

1mm-6mm

2mm-10mm

> 200A

1mm-12mm

1mm-8mm

2mm-12mm

500A

1mm-30mm

2mm-10mm

2mm-30mm

These sizes are subject to the power your welder can output, so always check the product specifications.

What’s the difference between MIG, TIG & Stick?

 

PROs

CONs

MIG

easy to learn

gasless option

gas tank

TIG

really thin metals

better looking welds

gas tank

hard to learn

STICK

no gas

limited to thicker material

Now you should have a decent idea of which type of welding you think will work best for your needs; we can start narrowing the options even more.

What power points are available to you?

The power you can plug into is going to dictate the range of machines you can pick from. A standard domestic outlet is 10 AMP, so everyone will have one of those.

A 10 AMP plug will usually support up to 180 AMPs, and a 15 AMP plug will usually support up to 200 AMPs. Anything over that will require an authorised electrician to install a plug (20 AMP or 32 AMP) for you by Australian law.

How long do you want to weld for?

There’s one main thing on a welder that will determine how long you’re going to be able to use a welder without stopping—the duty cycle.

If a welder has a duty cycle like this: 10% @ 180A, that means you can use the welder on its max AMPs (180A) for a full minute straight before it overheats. Duty cycle is measured in 10-minute increments, so if you have a 10% duty cycle at max AMPs, you’ll have 1 minute of constant welding and then 9 minutes cooldown time.

Viper vs Razor

Viper machines are designed for home DIY projects and weekend hobbyists, but they’re also great for any offsite work. The Viper machines are lightweight, portable, and with a 10 AMP plug, they’ll go just about anywhere. They’re built to be user friendly, making setting up and getting started as quick and easy as possible. The Viper machines come with helpful setup guides on their inside panel so that no matter what level welder you are, you can get the machine running without issues.

On the other hand, Razor machines are made to suit a range of professional and industrial need. They’re usually equipped with a 15 AMP plug, but some of the really high AMP machines require specialised plug sockets. The bigger plugs mean that most of the Razor range can reach a much higher max AMP output than the Vipers. Razor machines also come with a full 3-year warranty.

What kind of budget do you have?

Whether you’ve decided to MIG, TIG or stick weld, you’re going to need a few extras:

  • Filler metals
  • Consumables (these need to match your wire sizes which in turn need to match your material size)
  • Gas tanks (if needed)

Unimig Machines have decades of professional tried and tested technologies under their belts. You’ll be buying from a top tier, Aussie owned family business with local support centres across the country.

Synergic Control

A synergic welder is a machine that’s pre-programmed with a set of parameters that allow it to select the best settings for you automatically. The programs for UNIMIG’s synergic controlled machines were made in collaboration with an expert welder to ensure that their parameters are going to produce a good weld.

Synergic welders are an excellent choice for beginners, as you won’t need to spend any time messing with the settings to get the weld right. There’s no guesswork involved, and you’ve usually only got one knob to play around with.

Most synergic welding machines will ask for the wire thickness and the parent metal thickness. Once you’ve input these, it will automatically decide your voltage and wire speed for you, and you can start welding straight away.

 


Part Number/SKU: KUM425SWF

* Product Images are for illustration purposes only, unless otherwise specified colour may be different.

Features:
  • Four wheel geared wire drive system
  • Triple inductance for exceptional arc control
  • Seperate Wire Feeder
  • 10 metre inter connecting cables
  • High strength steel construction
  • Heavy duty copper wound transformer
  • Exceptional high duty cycle 50% @ 400 amps
  • European made quality manufactured in Hungary
  • 3 Years Warranty
 
Package Content:
  • UNIMIG 425 SWF MIG Welder
  • KT 50 Seperate Wire Feeder complete with 10 metre interconnecting cables
  • SB384M Sure Grip Ergo MIG torch with Euro connection
  • 10M Earth lead with 35/50 Dinse style connections
  • UNI-FLAME Twin Gauge Argon Regulator
  • 2M Gas Hose Complete with fittings
SKU KUM425SWF
Brand Unimig
Shipping Weight 185.0000kg
Shipping Width 1.000m
Shipping Height 0.800m
Shipping Length 1.500m
Shipping Cubic 1.200000000m3
Unit Of Measure ea

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UNIMIG 425 SWF 

 
The UNIMIG 425 SWF is a powerful workhorse with an exceptionally high duty cycle. It is ideally suited for medium to heavy fabrication industries as well as rural applications. Combining smooth arc characteristics with complete reliability, the UNIMIG 425 SWF is the unit to satisfy all the demands of the professional welder.
 
The UNIMIG 425 SWF features a completely enclosed KT 50 wire feed unit which helps prevent dust and moisture fouling your wire and contaminating your weld. Fitted standard with a geared four wheel roller drive system ensuring consistent wire feed and smooth welding. It comes with a set of fully covered 10 metre interconnecting cables and wheels for increased maneuverability.
 
  • UNIMIG 425 SWF MIG Welder
  • KT 50 Seperate Wire Feeder complete with
  • 10 metre interconnecting cables
  • SB364M Sure Grip Ergo MIG torch with
  • Euro connection
  • 10M Earth lead with 35/50 Dinse style connections
  • UNI-FLAME Twin Gauge Argon Regulator
  • 2M Gas Hose Complete with fittings
  • High Duty Cycle operation 50% at 400 Amps
  • 30 Voltage positions
  • Dual inductance settings for optimum arc 
  • characteristics on thin or thick materials
  • 2T-4T trigger operation (MIG Only)
  • Stich and Spot welding modes
  • Adjustable Burnback control
  • SPECIFICATIONS

  • Part NumberKUM425SWF
  • Primary Input Voltage415V 3 Phase
  • Voltage steps30
  • Duty Cycle 40 Deg C60% @ 400Amps / 100% @ 310Amps
  • Welding Voltage Range16 - 34V
  • Wire Size0.6 - 1.6mm Ferrous
  • 0.9 - 1.6mm Aluminium
  • 0.6 - 1.6mm Stainless Steel
  • 0.9 - 2.4mm Flux Cored
  • Dimensions (mm)1270 x 940 x 600
  • Weight (Kgs)182
  • Torch optionsSB38 4M & 5M / ARB 400 / 12ft / 15ft & 17ft TWC
  • OptionsAmp-Volt Meter - Part No: AVOPTION
 

Choosing the Right UNIMIG Machine for You

Whether you’re a professional welder with industry experience or a weekend warrior with a welding hobby, the first thing you need is a welder.

There are a few factors that you should consider before diving into buying a machine. These include the material, the material thickness, the weld type (MIG, TIG or stick), the power, and, most importantly, your budget.

The material you want to weld, and its thickness, will determine the welding process that will work best for you, especially as not every welder can do every material.

What material are you going to be welding?

MIG

TIG

STICK

mild steel

stainless steel

aluminium

copper

bronze

mild steel

stainless steel

aluminium

copper

bronze

zinc alloys

mild steel

stainless steel

cast iron

How thick is the material you plan to weld?

 

MIG

TIG

STICK

< 200A

1mm-10mm

1mm-6mm

2mm-10mm

> 200A

1mm-12mm

1mm-8mm

2mm-12mm

500A

1mm-30mm

2mm-10mm

2mm-30mm

These sizes are subject to the power your welder can output, so always check the product specifications.

What’s the difference between MIG, TIG & Stick?

 

PROs

CONs

MIG

easy to learn

gasless option

gas tank

TIG

really thin metals

better looking welds

gas tank

hard to learn

STICK

no gas

limited to thicker material

Now you should have a decent idea of which type of welding you think will work best for your needs; we can start narrowing the options even more.

What power points are available to you?

The power you can plug into is going to dictate the range of machines you can pick from. A standard domestic outlet is 10 AMP, so everyone will have one of those.

A 10 AMP plug will usually support up to 180 AMPs, and a 15 AMP plug will usually support up to 200 AMPs. Anything over that will require an authorised electrician to install a plug (20 AMP or 32 AMP) for you by Australian law.

How long do you want to weld for?

There’s one main thing on a welder that will determine how long you’re going to be able to use a welder without stopping—the duty cycle.

If a welder has a duty cycle like this: 10% @ 180A, that means you can use the welder on its max AMPs (180A) for a full minute straight before it overheats. Duty cycle is measured in 10-minute increments, so if you have a 10% duty cycle at max AMPs, you’ll have 1 minute of constant welding and then 9 minutes cooldown time.

Viper vs Razor

Viper machines are designed for home DIY projects and weekend hobbyists, but they’re also great for any offsite work. The Viper machines are lightweight, portable, and with a 10 AMP plug, they’ll go just about anywhere. They’re built to be user friendly, making setting up and getting started as quick and easy as possible. The Viper machines come with helpful setup guides on their inside panel so that no matter what level welder you are, you can get the machine running without issues.

On the other hand, Razor machines are made to suit a range of professional and industrial need. They’re usually equipped with a 15 AMP plug, but some of the really high AMP machines require specialised plug sockets. The bigger plugs mean that most of the Razor range can reach a much higher max AMP output than the Vipers. Razor machines also come with a full 3-year warranty.

What kind of budget do you have?

Whether you’ve decided to MIG, TIG or stick weld, you’re going to need a few extras:

  • Filler metals
  • Consumables (these need to match your wire sizes which in turn need to match your material size)
  • Gas tanks (if needed)

Unimig Machines have decades of professional tried and tested technologies under their belts. You’ll be buying from a top tier, Aussie owned family business with local support centres across the country.

Synergic Control

A synergic welder is a machine that’s pre-programmed with a set of parameters that allow it to select the best settings for you automatically. The programs for UNIMIG’s synergic controlled machines were made in collaboration with an expert welder to ensure that their parameters are going to produce a good weld.

Synergic welders are an excellent choice for beginners, as you won’t need to spend any time messing with the settings to get the weld right. There’s no guesswork involved, and you’ve usually only got one knob to play around with.

Most synergic welding machines will ask for the wire thickness and the parent metal thickness. Once you’ve input these, it will automatically decide your voltage and wire speed for you, and you can start welding straight away.

 

Features:
  • Four wheel geared wire drive system
  • Triple inductance for exceptional arc control
  • Seperate Wire Feeder
  • 10 metre inter connecting cables
  • High strength steel construction
  • Heavy duty copper wound transformer
  • Exceptional high duty cycle 50% @ 400 amps
  • European made quality manufactured in Hungary
  • 3 Years Warranty
 
Package Content:
  • UNIMIG 425 SWF MIG Welder
  • KT 50 Seperate Wire Feeder complete with 10 metre interconnecting cables
  • SB384M Sure Grip Ergo MIG torch with Euro connection
  • 10M Earth lead with 35/50 Dinse style connections
  • UNI-FLAME Twin Gauge Argon Regulator
  • 2M Gas Hose Complete with fittings
SKU KUM425SWF
Brand Unimig
Shipping Weight 185.0000kg
Shipping Width 1.000m
Shipping Height 0.800m
Shipping Length 1.500m
Shipping Cubic 1.200000000m3
Unit Of Measure ea

Be The First To Review This Product!

Help other National Welding and Industrial Supplies users shop smarter by writing reviews for products you have purchased.

Write a product review


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