PrimeWeld MIG285 285-Amp MIG Welder Updated

  • $1,478.95
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MIG285 will include both manual and synergetic mode. 

The PrimeWeld MIG285 has all the power and versatility you could want.
At a max amperage of 285 amps, you can easily weld material up to 5/8 inch thick.

Add to this the fact that this machine is capable of four different processes — MIG, Flux Core, Lift Tig, and Stick — and you have the perfect all-in-one solution for your welding needs.

A Highly Versatile Portable Welding Machine

With this welding machine, you have access to four separate processes.

Straight MIG welding is perfect for high-speed welding in situations where “getting it done” is the most important thing.

Flux Core allows you to have the speed and ease of MIG welding in situations where shielding gas is unavailable.

When precision and control are of the utmost importance the Primeweld MIG285 is capable of delivering up to 285 amps of Lift TIG power at a 25% duty cycle.

Finally, whether you need something quick and dirty in the field or you need to rapidly change between types of metal being welded, nothing beats the flexibility and utility of good old-fashioned stick welding.

All of this, while weighing in under 60 lbs, makes the Primeweld MIG285 a truly multi-purpose unit. That you can easily move around the shop, or from job site to job site.

Save Fatigue On Your Trigger Finger With 2T/4T Toggle

The innovative 2T/4T toggle system on your Primeweld MIG285 allows you to easily change from a traditional two-touch trigger to a four-touch.

The two-touch system functions as you’re used to, pull the trigger to start welding and release to stop the weld.

In the four-touch mode once the weld has been started you can release the trigger and continue welding until the trigger is activated again or the welding arc is broken to stop the welding arc.


Our customer service makes it easy to connect with our team of GENUINE PEOPLE, who provide helpful advice and know-how to troubleshoot every PrimeWeld model for optimum performance.



The Primeweld MIG285 is a true all-in-one welding machine. Professional contractors and experienced hobbyists will love its versatility. This DC machine can tackle MIG, stick, TIG, and flux core projects of all sizes. You can even set it up for DCEP aluminum welding. Weighing less than 60 lbs, the MIG285 is easy to move and transport. Despite its light weight, it has a powerful output of up to 285A. 

The Machine That Does It All

With this model, Primeweld set out to create a welding machine that can handle anything. The MIG285 makes it easy to lay down high-quality welds with any process. Switching polarity takes just seconds. Sometimes you want to take the time to create a beautiful TIG weld. Other times, all you need is a quick MIG bead. No matter what kind of welding you need to do, you’ll never have to switch machines again.

Fine-Tune Your Welds

The MIG285 is perfect for welders who want to dial in every precision setting. On the front display panel, you can adjust:

  • Stick Hot Start Amps

  • Stick Hot Start Time

  • Stick Arc force Amps

  • Pre Flow

  • Post Flow

  • Run In

  • Burn back

  • Wire Sharp

  • Spot

  • Spot Time

  • Stitch

  • Stitch Time

  • Dwell Time


The machine is also a great choice for those who prefer to keep their settings simple. To use the standard settings, it’s easy to restore factory defaults in the features menu.

Effortless Digital Display

Switch welding modes with the push of a button. Get an exact digital readout of your voltage and wire feed speed. The MIG285 combines classic adjustment knobs with an easy-to-read LED display. The front panel also makes it easy to adjust advanced settings like hot start and run-in.

Quality and Service Backed By Our 3-Year Warranty

When you choose Primeweld, you can trust our commitment to the highest quality. Your welding machine comes with a hassle-free warranty for three years. If there are any problems with your machine, we will cover parts, labor, and shipping to make it right. For international customers, the warranty covers parts at our cost. The Primeweld support team is available. We’ll be happy to assist you with any questions about your machine.



 Specifications Table


IGBT type: IGBT tube      
Inverter Type:

Digital/ Micro-controlled, half-bridge

Output Type: MIG, lift TIG, Stick      


Max Rated MIG output Amps: 285A      
Max Rated TIG output Amps: 250A      
Max Rated Stick output Amps: 250A      
  240v 120v    
MIG Amps@Rated Duty cycle: 30%285A


Stick Amps@Rated Duty cycle: 30%250A


Tig Amps@Rated Duty cycle: 30%250A


Max Inrush (I1MAX) Input Amps: 120v 34.2A 42.5A 25.3A
  240v 57.4A 53.5A 35.7A
Max Rated (I1eff) Input Amps: 120v 18.7A 23.3A 13.9A
  240v 27.4A 29.3A 19.6A


MIG Output range: 40-260A      
Stick Output range: 20-250A      
Tig Output range: 10-250A      
Stick Hot Start Amps: 0-200%      
Stick Hot Start Time: 0-2.0S      
Stick Arc force Amps: OFF-200%      
Voltage reduction device ON-OFF      
Restore Factory Defaults NO-YES      

Stick E6010/Cellulose setting or capablity:

MIG Operator Controls: C25/C100 FLUX ALUM  
Wire Diameter .024/.030/.035 .035/.045 0.035  
Pre Flow 0-0.2s      
Post Flow 0-10.0s      
Run In 30-150%      
Burn back 0-1.0s      
Wire Sharp ON-OFF      
Spot OFF-ON      
Spot Time 0.1-20.0s      
Stitch OFF-ON      
Stitch Time 0.2-4.0s      
Dwell Time 0.1-1.0s      
Wire Feed Speed Units MPM-IPM      
Restore Factory Defaults No-yes      
Machine alone size:


Machine Weight: 58.33lbs      
Power Cable length: 78.74inches      
What's Included
  • MIG285 Welder
  • MIG Torch
  • Work Clamp
  • Electrode Holder
  • Gas Regulator
  • Gas Hose
  • .030"(0.8mm),.040"(1.0mm)Contact Tip
  • Operator's Manual
  • Power Adapter
  • .025"-0.30" V-groove Drive Roll 2pcs
  • .035"-.045" Knurled-groove Drive Roll 2pcs
  • Hand-hold Welding Reference Lamination Paper
  • Wing Nut


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