Razorweld 205 Smart Set MIG/TIG/MMA

Available in stock


unimig-razorweldThe Razorweld Series MIG205-SS is a new inverter-based portable MIG/MMA/TIG Welding machine with Synergic Programs for 0.8mm and 0.9mm solid welding wires. The MIG function allows you to weld with both Gas Shielded and Gasless wire applications giving excellent, professional welding results. Easy step-less adjustment of voltage and wire feed coupled with integrated digital meters allows easy setting of welding parameters. The MIG 205SS features Smart set welding with four Synergic Mild Steel welding programs designed for ease of use with your selected gas mixture. The operator selects the gas mixture and wire diameter they are using then simply start welding. Once this is done the operator can make fine adjustments to the voltage for even greater control of the weld pool. The added Lift-Arc DC TIG capability delivers perfect arc ignition every time and a remarkably smooth stable arc produces high quality TIG welds. TIG functionality includes adjustable Down Slope & Post Gas as well as being gas  solenoid-valve equipped. The stick welding (MMA) capability delivers easy electrode welding with high quality results, including cast Iron, stainless and low hydrogen. An additional feature is the Spool gun ready function that allows the simple connection of the PLSP240Amp Spool Gun for the use of thin or softer wires that don’t have the column strength to feed through standard MIG  torches, such as aluminum wire. This is an industrial quality machine that is extremely lightweight and portable. Being 240v single phase gives great versatility. Ideal for general engineers, maintenance workshop, rural workshop, panel beaters and home  workshop. Designed and built to our specification. Certified to – AS/NZ60974.1

Key Features

• New 40 KHz IGBT inverter technology
• MIG/MAG with Gas and Gasless wire function
– Smart Set Synergic programs for 0.8 / 0.9 Mild Steel
– Soft Start – Self Adaptive Crater Fill
– Wire Inch
• MMA function (Stick electrode)
– VRD (Voltage Reduction Device)
– Hot start (improves electrode starting)
– Adjustable Arc Force
– Lift Arc ignition (prevents tungsten sticking during arc ignition)
– 2T 4T Trigger Control
– Adjustable Downslope
• Internal wire feeder, gear driven for up to 200mm Ø spool
• Euro style MIG & TIG torch connection
• IP21S rating for environmental/safety protection
• Tolerant to variable power supply
• Spool Gun Connection

Quick Overview


Multi Process at it's Best

The Razorweld 205 Smartset is the ideal machine for light industrial fabrication work . The machine is lightweight and portable and perfect for site work. The MIG function provides superb arc characteristics when using either Gas Shielded or Gasless Wires. The machine features an adjustable Burnback control and easy to use panel layout to get your job done faster. 

The Smartset function is a Synergic feature that allows you to select the wire size and gas mixture you are using and the machine will optimise the parameters for your job. Once welding you can still make adjustments to the Voltage control for fine tuned results. 

The machine is also a very capable MMA (Stick) welder capable of running most MMA Electrodes up to 4.0mm. An added feature of Hot Start helps when striking an Arc to minimise the Electrode sticking to the work piece. 

With the machine being Spool Gun ready a UNIMIG Spool Gun is available if you want to run Aluminium wire without the changeover in the torch, liner and drive roller. The Spool Gun is an ideal way to use softer wires and not have to purchase larger spools of wire for small jobs. 

The Razorweld 205 Smart Set is also a DC TIG welder with Lift Arc function. DC TIG will allow welding of materials such as Mild and Stainless Steels as well as Bronze, Copper and Chrome Moly’s. 

*Always refer to the recommended polarity setup as stated on the electrode packaging.


Smart Set Technology


The MIG 205 Smart Set features four Synergic Mild Steel welding programs
designed for ease of use with your selected gas mixture. The operator selects the gas mixture and wire diameter they are using then simply starts welding.
Once this is done the operator can make fine adjustments to the voltage for even greater control of the weld pool.

Voltage Reduction Device


Voltage Reduction Device (VRD) is a safety feature when operating in MMA/Stick mode.
VRD reduces the maximum unloaded open circuit voltage across the output terminals. This makes the machine safer to use and is an industry standard in the welding industry.


UNIMIG is pleased to offer a 3 year warranty on all Razorweld 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

KUMJRRW205SSMIGkit full crop

Package Contents

The UNIMIG Razorweld 205  MIG/TIG/MMA  is packaged ready to weld and includes,

  • 1 x Razor MIG 205 Smart Set Power Source
  • 1 x 4 metre SB25 MIG Torch
  • 1 x 4 metre Arc Welding lead set including twist lock electrode holder & 300 Amp earth clamp
  • 1 x UNIMIG Twin Gauge Argon Regulator
  • 1 x 2 metre Gas Hose with connections
  • 1 x Instruction Manual


  • Part NumberKUMJRRW205SSMIG
  • Primary Input Voltage240V 1 Phase
  • Rated Input Power KVA9.4 KVA
  • ieff AMPS15.0
  • Rated Output MIG30A / 15.5V - 200A / 28.0V
  • Rated Output TIG10A/10.4V - 200A/18.0V
  • Rated Output MMA10A/20.4V - 200A/28.0V
  • Welding Current Range10 - 200 Amps
  • Duty Cycle 40 Deg C - MIG20% @ 200Amps
  • Duty Cycle 40 Deg C - TIG DC25% @ 200Amps
  • Duty Cycle 40 Deg C - MMA15% @ 200Amps
  • Dimensions (mm)470 x 190 x 380
  • Weight (Kgs)12.5

Optional extras & accessories

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