Available in stock



The MULTI-250K is the most powerful multifunction single phase system that state of the art technology can provide. Offering multiple welding functions including Pulse MIG, Double Pulse MIG, High Speed MIG, DC TIG, and DC MMA (STICK). User friendly programs with synergic function are provided for all the welding processes making it suitable for even the inexperienced user. The Multi-250K encompasses all facets of the new PLUS CONCEPT technological development. PLUS CONCEPT is an innovative solution that is revolutionising the welding industry. Now, high efficiency welding is possible with Gas Metal Arc Welding, Pulse Arc and standard applications. The forced dynamism of the PLUS CONCEPT achieves an ultra fast transfer droplet rate into the weld pool improving production results. It increases significantly the welding speed (up to 45%) and, at the same time, it increases the penetration of the weld. Higher speed, better penetration and less spatter means less energy used during the deposit and reduced deformation during the welding.  Double Pulse function provides the ability to produce welds with TIG like finish and with excellent control over the weld pool. Ideal for general engineers, boat building, sheet metal workshops, stainless steel fabricators, panel beaters and transport engineering workshops. Designed and built to meet with European norms conformity.

• New “Plus Concept” Technology
•  Latest European IGBT Inverter Technology
• High Speed Synergic Pulse MIG
• Synergic MIG Double Pulse
• High Speed MIG/MAG
• 14 Synergic MIG Programs
• DC TIG with Manual and Synergic Programs
• MMA with Manual and Synergic Programs
• VRD Safety (Voltage Reduction Device)
• 2/4T Trigger Functions
• Up Slope – Down Slope
• Variable Start Current and Crater Current
• Simple selection of welding programs
• Simple interface for easy operation
• Accepts wide voltage supply variations (170-270V)
• Optional robust trolley with cylinder rack & drawer

Quick Overview

Part No: KTRPM250KT

Multi Function

PLUS CONCEPT is not only an Innovative fast Pulse and fast MIG-MAG machine but MMA and DC TIG mode are also included. The MMA and DC TIG function are top level technology and offer professional results for expert users. MMA and DC TIG mode has both manual and synergic adjustment.  When Synergic Mode is selected, the user selects the welding process, which enables self regulation of the welding parameters by simply selecting the work-piece thickness. Special Lift arc start is used for DC TIG Arc ignition which makes the use of high frequency negligible. Remote control receptacle is included for connection of remote amperage controls.



Double Pulse MIG Function

The DOUBLE PULSE program can be easily selected.  A simple click in the front panel will switch from a standard pulse application to the advanced and fast double pulse without any other settings required from the operator. The frequency of the DOUBLE PULSE is easily adjusted from 0.5 to 4.0 pulses per second. DOUBLE PULSE offers more control over the weld pool improving out of position welding, better controls distortion and gives excellent wash and even leg length on fillet welds, an added bonus is the improved cosmetic appearance of the weld likened to a TIG finished weld.




UNIMIG is pleased to offer a 2 year warranty on all T&R machine’s*.
UNIMIG offers warranty across Australia with four UNIMIG service centre’s in Sydney, Melbourne, Brisbane & Perth. We also have authorised service centres across Australia as well.UNIMIG’s focus is to assure the buyer is getting reliability, performance and peace of mind with a quality product.

UNIMIG also offers an additional 6 months warranty free of charge when you register your product online via the UNIMIG website.

*Please note warranty only applies to the power source only


Package Contents

The T&R Multi250 is packaged ready to weld and includes,

  • 1 x Multi250 Power Source
  • 1 x DM26-3M Sure Grip Logic MIG Torch
  • 1 x 4 metre Arc Welding lead set including twist lock electrode holder & Earth clamp
  • 1 x UNIMIG Twin Gauge Argon Regulator
  • 1 x 2 metre gas hose
  • 1 x Trolley to suit Multi250
  • 1 x Instruction Manual


  • Part NumberKTRPM250KT
  • Power Supply / Phases (V-Ph)240v 1 Phase
  • Rated Power9.1KVA
  • Welding Current - MIG20A /14V - 250A /27.5V
  • Welding Current - MMA (A)20A /21V - 220A /28.8V
  • Welding Current - TIG (A)10A /10V - 250A /20.0V
  • Duty Cycle @ 40ºC40% @ 250 Amps / 100% @ 160 Amps
  • No Load Voltage (V)90
  • Open Circuit Voltage (V)VRD On - 15V, VRD Off - 65V
  • I ieff24.0 Amps
  • TIG Arc IgnitionLift Arc
  • Water CoolingOptional
  • Protection ClassIP21S
  • Insulation ClassH
  • StandardsISO/IEC 60974-1
  • Size (mm340 x 400 x 620
  • Weight (kg)24

Optional extras & accessories