UNIMIG Razor 320 AMP 3 Phase ACDC TIG Welder + Water Cooler - KUMJRRW320ACDC


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Visit our warehouse at 20 Milly Court, Malaga Western Australia to collect your order. Pick up times 7:30 am to 5:00 pm Mon to Fri 9:00 am to 12:000 pm Saturday

UNIMIG Razor 320 AMP 3 Phase ACDC TIG Welder

The Perfect Package for anyone looking to get straight into precision ACDC welding. 

The RAZOR 320 AC/DC is a new generation inverter welder with a primary function of AC/DC TIG. 

*Please note: Due to the size of this item, the free delivery is to the Australian major cities metropolitan areas.  If you are outside of the metro area, we may contact you for a small additional freight charge*


  • AC TIG: Featuring multiple AC output waveforms of Square, Trapezoidal and Sine, combined with AC Balance and AC Frequency control you have the ultimate tool in AC TIG Welding mode to suit all your AC TIG welding requirements.
  • DC TIG: Latest 43KHz inverter frequency technology provides the ultimate in smooth and stable arc condition for DC TIG welding mode, coupled with the Digital Weld Sequence Program provides complete and professional DC TIG Welding function. 
  • MIX ARC: This function of MIX AC/DC makes it possible to modulate the welding current, alternating a period of TIG AC with a period of TIG DC-. This means that the efficiency of AC TIG welding can be combined with the high penetration of DC TIG welding, obtaining higher welding speeds and establishing the weld puddle quicker on cold work-pieces. The operator adjustable parameter is the percentage of AC waveform compared to DC- waveform over the entire period, which can be varied from 5-95%.
  • 2T/2S/4T/4S Torch Mode
  • T3W Water Cooled Tig Torch
  • Water Cooler Ready



• RAZOR TIG 320 AC/DC Power Source

• 4m T3W Water-Cooled TIG Torch

• 4m Twist Lock Electrode Holder

• 500 Amp Earth Clamp & Lead

• Argon Flowmeter Regulator

• 2m Gas Hose Complete with fittings

• Operating Manual

The machine does NOT come fitted with a power plug


  • Part Number: KUMJRRW320ACDC
  • Primary Input Voltage: AC 400V ±15%
  • Power Capacity: 9 kVA @ Tig, 10 kVA @ MMA
  • Rated Input Current (A): 19.5A @ Tig, 21A @ MMA
  • Output Current Adjustment Range (A): 10~315 TIG - 10~270 MMA
  • Thrust Current Adjustment Range: 0~100A
  • Hot Arc Current Adjustment Range: 0~80A
  • No-Load Voltage (V) 70
  • VRD Voltage: 12.4V
  • Rated Operating Voltage: 22.6@ Tig, 30.8@ MMA
  • Duty Cycle 40 Deg C - TIG: 30%@315Amps TIG
  • Duty Cycle 40 Deg C - MMA: 30%@270Amps MMA
  • Power Factor: 0.7
  • Protection Class IP21S
  • Insulation Class: F
  • Operating Temperature: 10-40 0C
  • Input frequency: 50 Hz
  • Base current range: 6~315 
  • DC pulse frequency range (Hz) 0.5~200
  • DC pulse duty (%) 5~95
  • AC output frequency range (Hz) 50~200
  • AC-DC output frequency range (Hz) 1~20
  • AC-DC Mixing Duty Cycle (%): 5 - 95
  • AC pulse frequency range (Hz) 0.5~20
  • Front blowing time (s) 0.5 ~ 10
  • Rear blowing time (s) 0.5 ~ 15
  • Hot arc current time: 0.01 ~ 1.5s
  • Rise time (s) 0~15.0
  • Decay time (s) 2.0~20.0
  • Remote control: YES
  • Arc strike mode: Contact arc striking, High-Frequency arc striking
  • Efficiency: 80%
  • Dimensions (mm) 566 x 223 x 405
  • Weight: 25.5 kg

** Product comes with a nationally recognised 36 month warranty through any UNIMIG Dealer ** 


Shipping Weight 50.0000kg
Shipping Width 0.420m
Shipping Height 0.330m
Shipping Length 0.160m

** Product comes with a nationally recognised 36 month warranty through any UNIMIG Dealer ** 

Great welder

By: on 13 December 2021
Thanks for the excellent quality from Hampton bought a few months ago and still in perfect condition

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1 x 320AMP ACDC TIG Welder 1 x Water Cooled Trolley 1 x Water Cooled 4m Torch

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