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Unimig Razor Arc Stick Tig MMA Welder 140 Amp KUMJRRW140CA 3 yrs warranty

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Special Price $365.00 Regular Price $399.00
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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.

RELIABLE PERFORMANCE: 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.

SAFETY: 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.

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.

STANDARD RAZOR140 COMPACT KIT: 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.

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

  • 1 x Razor Arc 140 DC MMA/TIG Power Source
  • 1 x 4 metre Arc Welding lead set including twist lock electrode holder & 300 Amp earth clamp
  • 1 x Lightweight Heavy Duty PVC Carry Case
  • 1 x Machine Carry Strap
  • 1 x Instruction Manual.

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.


Part Number: KUMJRRW140CA

Primary Input Voltage: 240V 1 Phase

Rated Input Power : 7 KVA

ieff AMPS: 9.7A MMA / 9.7A TIG

Rated Output: 140A / 25.6V MMA - 140A / 15.6 TIG

Welding Current Range: 10 - 140 Amps

No Load Voltage: 9V

Duty Cycle 40 Deg C - MMA 15% @ 140Amps

Duty Cycle 40 Deg C - TIG DC 20% @ 140AMps

Dimensions (mm) 311 x 250 x 130. Weight: 4.7 kg.

SUITABLE MATERIAL: Mild Steel, Stainless Steel, Copper, Cast Iron.

WARRANTY: UNIMIG is pleased to offer a 3-year warranty on all RAZOR™ Machines*.

UNIMIG offers warranty across Australia with four UNIMIG service centre’s in Sydney, Melbourne, Brisbane & Perth. 

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


This ready-to-weld kit includes: RAZORWELD ARC 140 Welder KUMJRRW140CA, General Purpose Electrode 2.6 MM 2.5 KG, Welding gloves UMWG8 and Chipping Hammer Handle.


A true general-purpose welding electrode for both the beginner and experienced welders.

  • The special coating makes this electrode unique in that it is almost impossible to “STICK“ the electrode to the work. The special coating allows easy welding of galvanised steels, dirty, rusty and scaly steels.
  • A strong smooth weld with very little spatter and self releasing slag is produced.

  • Weld bead appearance is excellent and the molten pool is controlled with ease in all positions.  

Typical Mechanical Properties of Weld Metal:

Yield Stress – 460Nmm2

Tensile Strength –  490N/mm2

Elongation – 25%

Impact Values – 65J @0°C.

All Position •  Extremely Stable Arc •  Good Arc Starting and Restrike •  Self Releasing Slag •  Low Spatter Level •  Good Weld Bead Appearance •  International Approvals.


These Rogue Heavy Duty Welding Gloves are made of heat and flame resistant selected shoulder split cowhide. The standard feature of these gloves include a full sock lining for added comfort, a reinforced palm and Kevlar stitching with welted seams for added durability.

Premium cowhide leather • Reinforced palm • Kevlar Thread • 16″ / 400mm Length.

Chipping Hammer  (SKU No: UMCH-HD

The UNIMIG Chipping Hammer consists of a hardened steel head supported by a heat resistant and shock dampening spring handle, along with an eye loop for pegboard hanging. The hammer features a cone shaped head, with a sharp, flattened point and a dual bevelled tail. The chipping hammer is ideal for removing slag and spatter clean up.

  • Hardened steel head for tough slag and spatter removal
  • Comfortable handle design for vibration dampening and heat resistance
  • Eye loop for pegboard hanging

More Information
Warranty 3 years
Condition New
Dimension Length (cm) 34
Dimension Width (cm) 25
Dimension Height (cm) 14
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On each product page, we provide an online instant shipping quote with multiple options of shipping to your commercial address (for ex: business, farm, workshop) or your house and with or without tailgate.

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PO BOXES : NO parcels above 22kg and/or longer than 1meter can be sent to a PO Box. Signature is required.

1. Goods are shipped once payment is received in full. We strongly advise all customers that they provide a delivery address where someone is available to sign for the goods during business hours. Sometimes, a forklift will be required to unload at the destination. If customers don’t have means to unload, you may be required to pick it up from a designated courier depot, OR pay an extra fee for the tailgate to unload the item when delivering to your nominated address. Please send us a message or call us (03) 9210 0400 to arrange.

2. All courier companies will attempt delivery of your goods once. If no one is home when delivery is being attempted, a note will be left. A re-delivery will incur extra charges. All second deliveries need to be directly organised with the courier company and paid for before goods are delivered.

3. Once in the hands of the couriers, freight times are outside of our control. However all tracking details are forwarded via email upon dispatch and customers are welcome to contact the relevant freight company, or we are happy to attend to any queries you may have.

4. FREE SHIPPING PROMOTION: This only applies to customers in capital cities. Free Shipping does not apply to regional areas. We can send the item to the nearest freight depot, and we will charge you the difference in freight cost to the capital city and your pick-up location. Please call us on (03) 9210 0400 for further information.
PICK-UP OPTION (No Handling Fee applies)

This option allows you to pick up your order from our Melbourne warehouse at no added cost.

Bookings are essential. Collection available at U5/25 Jersey Rd, Bayswater, Vic 3153.

Once your order has been placed, we will contact to let you know when your order will be available for pickup. (Our operating hours are between 8AM to 5PM Monday to Friday and 9am-3pm on Saturday).