COVID-19 combined with staffing shortages in both our suppliers and courier companies will cause delays. If you need your product before a certain date please include that in your shipping instructions and we will expedite or provide alternatives to your order.

| Enlarge
  • 250amp Razorweld Welder left facing|A photo of the 250amp razorweld welder facing left
  • 250amp Razorweld Welder front facing|A photo of the 250amp razorweld welder facing at the viewer
  • |
  • |
  • |
  • Drive system in the 250k razorweld welder|Full metal 4 geared roller drive system inside the 250amp welding machine shown in the pictures
  • Picture of accessories |A picture of the Earth leads, Mig gun, MMA torch, and regulator the machine is bundled with

UNIMIG Razor 250 MIG / TIG / MMA Compact Welder KUMJR250K-SG

KUMJR250K-SG 0 Reviews
$1950.00 inc gst

- 3 in 1 machine: MIG/TIG/Stick
- VRD: Voltage Reduction Device
- Burnback Adjustment
- Stepless voltage and wire feed control
- Four Gear Wired Drive
- Push-Pull Gun Ready
- Spool Gun Ready for Softer Wires
- Latest IGBT inverter technology

In Stock

Request Price Match

Please include full website address

  • Description
  • Specifications
  • Video
  • Shipping and Delivery
  • Related Downloads
  • Reviews
1 x RAZOR™ 250 Compact MIG/TIG/STICK Welder - (with Life Time After Sales Machine Support)
Please note, it is standard that these welders do not come with a plug. We will supply and fit the 15amp plug before we ship, so allow a day to do this before shipping. 
1 x 4m SB24 MIG Torch
1 x 4m Twist Lock Electrode Holder
1 x 300 Amp Earth Clamp & Lead
1 x Twin Gauge Argon Regulator
1 x 2 Metre Gas Hose Complete with fittings
1 x Operating Manual

The UNIMIG 250K is an inverter-based multifunction MIG welding machine with added MMA and TIG function. The MIG function allows you to weld with both Gas Shielded and Gasless wire applications. Easy stepless adjustment of voltage and wire feed make for easy setting of welding parameters giving excellent, professional welding results.

Wire inch gives easy feeding of the wire during set up without gas wastage and the Burn Back adjustment leaves the wire out ready for the next weld. An additional feature is the Spoolgun ready function that  allows the simple connection of the PLSP240Amp Spoolgun for the use of thin or softer wires that don’t have the column strength to feed through standard MIG torches, such as aluminium wire. Added MMA welding capability delivers easy and high quality welding using electrodes, including cast Iron, stainless and low hydrogen. Connection of the 26V TIG torch provides quality DC TIG with Lift Arc start for welding of steel, stainless steel and copper.


The UNIMIG 250K is the ideal machine for light to medium industrial and panel work . The machine is single phase 240V and also portable and perfect for workshop use. 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 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 other option for running softer wires is via a Push Pull gun. The machine is capable of running a 6 metre Push Pull gun which is ideal for Aluminium work adding yet another feature to this machines capabilities. 

The UNIMIG 250K 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. 

- RAZOR™ 250 Compact MIG/TIG/STICK Welder With 3 Year Warranty
- This three in one machine, lets you perform MIG, TIG and STICK welding all on one machine.
- Spool Gun ready, so you have the option of attaching a spool gun to run softer core wires such as Aluminium MIG wire.
- Four Geared Roller Drive - providing the most consistent and smoothest wire feed.
- Full protection with Voltage Reduction Device - Prevents voltage overloading.
- The MIG function allows you to weld with both Gas Shielded and Gas-less wire applications, providing MIG welding capabilities across a range of metals including mild steel, stainless steel and aluminium. Excellent MIG welding with CO2 gas & mixed gas
- Step-less adjustment of voltage and wire feed control ensure easy setting of welding parameters.
- Capable of running a 6 metre Push-Pull gun which is ideal for aluminium work, providing the smoothest wire speed,
- Wire Inch gives easy feeding of the wire during set up without gas wastage.
- 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. MMA delivers easy electrode welding with high-quality results, including cast Iron, stainless steel and low hydrogen.
- Burn Back adjustment leaves the wire stick out ready for the next weld.
- Large wire spool capacity fits 200mm and 300mm wire spools.
  • Latest IGBT inverter technology
  • MIG/MAG with Gas and Gasless wire function
  • Spool Gun connection
  • MMA
  • DC TIG welding with Lift Arc start
  • VRD (Voltage Reduction Device)
  • Wire Inch & Burn Back control
  • Industrial application
  • Internal wire feeder, gear driven
  • 5Kg to 15Kg Spools
  • Euro style MIG torch connection
  • IP21S rating for environmental/safety protection
  • Stepless voltage and wire feed control
  • Excellent MIG welding with CO2 gas & mixed gas
  • Excellent arc stability for MIG/TIG/MMA welding
  • 3 Years Warranty 
Part Number: KUMJR250K-SG
Supply Plug: Single Phase (32 AMP Recommended) or 15 AMP
Primary Input Voltage: 240V Single Phase
Rated Input Power: 11.8 kVA
Ieff AMPS: 29.0
Rated Output: 30A/15.5V - 250A/26.5V
No Load Voltage: 52
MIG Welding Current Range: 30-250A
MIG Duty Cycle @40ºC: 35% @ 250A
MIG Wire Spool Size (Kgs): 5kg / 15kg
MIG Wire Size Range: 0.6-1.0mm
MIG Welding Thickness Range: 1-12mm
Drive Roller Size: 30/22 (x2)
TIG Function Type: DC Lift Arc
TIG Welding Current Range: 10-220A
TIG Duty Cycle@ 40°C : 35% @ 220A
TIG Welding Thickness Range: 1-6mm
Stick Welding Current Range: 10-220A
Stick Duty Cycle@ 40°C: 35% @ 220A
Stick Electrode Range: 2.5-4.0mm
Stick Welding Thickness Range: 12mm
Suitable Material: Mild Steel, Stainless Steel, Cast Iron, Silicon Bronze, Aluminium, Copper
Dimensions(Mm): 900 x 400 x 670
Weight: 58kg
Warranty: 3 Years

Press to Play Video



Products labled with the "Free Delivery" sticker will have a N/A shipping charged to them on checkout, however some are excluded. This includes items that are large & heavy, some clearance items, or items classed as dangerous goods. Some of these items will incur a delivery fee after the purchase has been made and some may not be avaliable for delivery at all. Remote areas outside of sydney MAY excluded from free shipping, you will be contacted prior to delivery to confirm shipping charges if necessary. Electroweld reserve the right to change or withdraw free delivery at any time.

Store Pickup ($0)

You can place an order online and pay either using your card or paypal account. If this item is in stock, you will be able to collect it instantly, to check stock once you have purchased an item please call (02)9708 6660

Stock is not guaranteed until we have reserved stock for you under your order number.

Please wait for confirmation email of the order being 'ready for pickup' before coming in-store to pickup.

Please quote your order number when you come to the store.

Pickup time is during our business hours.

Orders are usually cancelled after 7 days if it has not been picked up or no form of communication or response has been received.

Standard Delivery – NSW wide (From $8.90)

This is usually a 1-2 day service. Outer NSW areas can take up to 5 days.

Someone must be present at the delivery address during business hours to receive & sign, if no-one is available you must put a note in the order instructions along with a suggested time and date for delivery. Additional delivery charges may apply if this process is not followed.

Special instructions can be included in the comments of your order

For overweight items or addresses outside our delivery network you will see "TBC" (To be calculated) where the delivery price was. You will still be able to make your purchase and a representative for Electroweld will contact you with a shipping quote. You are not obligated to accept this quote. If TBC is displayed, the normal 1-2 day service cannot be guanteed and the ETA on delivery will be included in the shipping quote. 

0 Posted Reviews


Post a Review

* What is 23 + 3?

Recently Viewed