MIG Welder
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Order Code: W253A
UNIMIG 425SWF - MIG Welder (415V)
40-400 Amps
On Special - Ends 30th June 2017
ex GST
inc GST

Part Number
Primary Input Voltage (V / Phase)
415 / 3
Recommended Plug Amperage (amp)
Welding Current Range MIG (amp)
40 - 400
Duty Cycle
50% @ 400amp
Wire Spool Size (kg)
5 & 15
Ferrous Wire Size - Range (mm)
0.6 - 1.6
Stainless Steel Wire Size - Range (mm)
0.6 - 1.6
Aluminium Wire Size - Range (mm)
0.9 - 1.6
Dimensions (mm)
1270 x 940 x 600
Nett Weight (kg)
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.

High Duty Cycle operation 50% at 400 Amps
30 Voltage positions
Triple inductance settings for optimum arc characteristics on thin or thick material
2T-4T trigger operation (MIG Only)
Stich and Spot welding modes
Adjustable Burnback control
  • Four wheel geared wire drive system
  • Separate Wire Feeder
  • 10 metre inter connecting cables
  • Triple Inductance for exceptional arc control
  • High strength steel construction
  • Heavy duty copper wound transformer
  • Exceptional high duty cycle 50% @ 400 amps
  • European made quality manufactured in Hungary
  • Robust cabinets with steel/rubber wheels
  • SWF models come with wheels and a swivel platform for wire feed unit
  • SWF accommodates 15kg wire spools
  • Thermal overload protection ensures efficiency
  • KT 50 Separate Wire Feeder complete with 10 metre interconnecting cables
  • SB38 4M Sure Grip Ergo MIG torch with Euro connection
  • 10M Earth lead with 35/50 Dinse style connections
  • UNI-FLAME Twin Gauge Argon Regulator
  • Gas Hose with Fittings

Product Brochure
1.14 MB
Instruction Manual
1.86 MB
Welding Wire Diameter CHART
189.07 KB
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  • UNIMIG 425 SWF (W253A)
Part Number
Primary Input Voltage (V / Phase)
Recommended Plug Amperage (amp)
Welding Current Range MIG (amp)
Welding Current Range MMA (amp)
Welding Current Range TIG (amp)
Duty Cycle
Wire Spool Size (kg)
Ferrous Wire Size - Range (mm)
Stainless Steel Wire Size - Range (mm)
Aluminium Wire Size - Range (mm)
Recommended Generator (KVA)
Dimensions (mm)
Nett Weight (kg)
Price (ex GST)
Price (inc GST)

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Parts List
623.48 KB