Razorweld ARC140 is an inverter-based welding machine produced using the latest in IGBT technology. This machine is reliable, robust and stacked with features that you can expect from UNIMIG. The DC MMA welding capability delivers a smooth and incredibly stable arc allowing easy welding with electrodes producing high quality welds including cast Iron, stainless and low hydrogen.
The Razorweld ARC140 is equipped with DC Lift TIG Arc function that allows quality DC TIG welding of steel, stainless steel, bronze and copper. The Lift Arc function is superb and delivers perfect arc ignition. The Razor Arc 140 creates a remarkably smooth stable arc leading to high quality TIG welds.
The Razorweld ARC140 is an exceptional machine that is suitable for a wide range of applications including light industrial use, site welding, farming, along with repair and maintenance applications. The Razorweld Arc140 is packaged in a tough PVC carry case with your choice of MMA option accessories or MMA/TIG option accessories. The-ARC140 gives you the best of both worlds great portability, with the power to get the job done. Built to our specification and manufactured in compliance to AS/NZ60974.1

Key Features:

Latest IGBT Inverter Technology
Hot Start (improves electrode starting)
VRD (Voltage Reduction Device)
Arc Force (boosts current to prevent electrode extinguishing)
Excellent Arc Stability with All Electrodes
Lift Arc Ignition (prevents tungsten sticking during arc ignition)
Ultra-Smooth DC TIG Welding Current
Thermal Overload Protection
Generator Compatible (recommend 9.0 KVA minimum)
Tolerant to Variable Power Supplies

Machine Specifications:

Product Number: U13004
Primary Input Voltage: 240V Single Phase
Supply Plug: 10 AMP
Ieff (A): 10.0
Rated Output: 20A/20.8V – 140A/25.6V
No Load Voltage (V): 78
Protection Class: IP23S
Insulation Class: H
Minimum Generator (kVA): 8.0
DINSE Connector: 35/50
Standard: AS/NZ60974-1
Suitable Material:

TIG: Mild Steel, Stainless Steel, Copper, Silicon Bronze
MMA: Mild Steel, Stainless Steel, Cast Iron

TIG Specifications:

TIG Function Type: DC Lift Arc
TIG Welding Current Range: 10-140A
TIG Duty Cycle @ 40°C:

20% @ 140A
60% @ 80.8A
100% @ 62.6A

TIG Welding Thickness Range: 1-5mm

STICK Specifications:

Stick Welding Current Range: 20-140A
Stick Duty Cycle @ 40°C:

15% @ 140A
60% @ 70A
100% @ 54A

Stick Electrode Range: 2.5-3.2mm
Stick Welding Thickness Range: 2-8mm

Size and Weight:

Dimensions (mm): 370×125×255 mm
Weight (kg): 5.5 kg

The UNIMIG Razorweld 140 DC MMA/TIG is packaged ready to weld and includes:

RAZOR ARC 140 PFC Welder
4m Twist Lock Electrode Holder
4m 300 Amp Earth Clamp & Lead
Operating Manual

Tig torch is an optional extra – Please scroll down to add tig torch and regulator to your cart.

** Product comes with a nationally recognised 5 Year warranty through any UNIMIG Dealer **