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Millermatic 140 Auto-Set (Machine)

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List Price: $879.00
Price: $845.00 + $66.51 shipping
You Save: $34.00 (4%)
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  • New! Auto-Set is a breakthrough control that automatically sets your welder to the proper parameters.
  • NEW! Smooth-Start patent-pending technology provides a smooth, spatter-free start.
  • "Tip Saver" short circuit protection shuts down output when tip is shorted to the work.
  • Standard Built-in solid-state contactor circuit makes wire electrically "cold" until trigger is pulled.
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Product Information

Technical Details
Brand NameMiller Electric
Item Weight1 pounds
Item model number907335
Manufacturer Part Number907335
  
Additional Information
ASINB001VXWHKG
Best Sellers Rank #73,803 in Office Products (See top 100)
Shipping Weight61 pounds (View shipping rates and policies)
Date First AvailableNovember 9, 2004
  
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Product Description

New! Auto-SetTM is a breakthrough control that automatically sets your welder to the proper parameters. Auto-Set offers all-in-one MIG, minus the guesswork! Simply set the wire diameter, set the material thickness, and start welding! Manual Mode has the flexibility to manually set weld parameters for broader applications. NEW! Smooth-StartTM patent-pending technology provides a smooth, spatter-free start. -The best starting machine in the small MIG category. No more pop-gun starts or spatter to clean up. Durable cast aluminum feedhead incorporates dual groove quick-change drive roll and spring-loaded tension arm with calibrated tension knob, all designed to make setup easier and faster. Thermal Overload Protection shuts down the unit and activates over- temperature light if airflow is blocked or duty cycle is exceeded. Automatically resets when fault is corrected and unit cools. "Tip Saver" short circuit protection shuts down output when tip is shorted to the work. Extends contact tip life and protects internal components from damage. Trigger reset permits quick reset at torch rather than unit. Standard Built-in solid-state contactor circuit makes wire electrically "cold" until trigger is pulled. Makes unit safer, and is easier to position torch to work before starting to weld. Easy access to output studs provides convenient polarity changeover when switching from solid or flux cored wires. Self-resetting motor protection circuit eliminates the need to find and replace fuses. Uses 4 or 8 in (102 or 203 mm) spools and can be set up to weld with wire sizes .024 - .030 in (0.6 - 0.8 mm) mild/stainless steel and .030 - .035 (0.8 - 0.9 mm) flux cored. Process MIG (GMAW) Flux Cored (FCAW) Applications Light Industrial Applications Light Fabrication Maintenance and Repair Farm and Ranch Auto Body Home Specifications Input Power Requires 1-Phase power 115 V, 20 Amps 60Hz Rated Output 90A at 18 VDC, 20% duty

Customer Questions & Answers

Customer Reviews

4.9 out of 5 stars
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It's very easy to use, fairly light weight, and excellent quality.
Alden
Not cheap, but there's no way around it unless your going with flux core.
Philscbx
If you need to do any kind of welding at home, this machine is excellent.
M. Gray

Most Helpful Customer Reviews

50 of 51 people found the following review helpful By M. Gray on April 25, 2010
After years of having to drag any of my welding needs to work, I finally plunked down and bought this unit 2 yrs ago. I'm a fan of Miller products from way back, having cut my welding teeth on a Syncrowave 250 multiprocess machine, and using all Miller products at work from light gauge galv. steel MIG welding (Shopmaster 300 from the 80's, 2 yr old ShopMate 300DX), to running straight SMAW stick welding with a couple of DialArc 250s that range to the late 60's, early 70's. And in my shop environment these things get beat to hell, and little if any repair work has been needed. Miller machines seem to last forever.

That said, this little 120 volt MIG welder has some serious guts to it. It's more than light enough to travel with, and being 120V it can be used almost anywhere. I regularly run it on a 15amp circuit with no problems.

The 20% duty cycle is overly cautious - this machine doesn't quit. Doesn't cut off, either, just keeps going. Welded the doors shut on a demo derby vehicle - nonstop welds. It's insane.

The M-10 gun is smaller but is perfect with this machine. I would probably replace the ground clamp with something a little heavier duty, but thus far it's been fine for my usage. The wire feed motor is a bit on the louder side, but has no problem pushing 0.030" wire at full speed off of a ten lb spool. Spool changes are quick, which is a good thing, I seem to alternate back and forth between 0.023" and 0.030 all the time.

I haven't really had an opportunity to run the Auto-Set as much as I'd like to comment on it. It seems to work well, but I rarely use this machine to weld equal thickness steels. Example - welding 3/16 wall tubing to auto body sheetmetal to replace rocker panels on an off road Jeep.

If you need to do any kind of welding at home, this machine is excellent. And you can get replacement parts (tips, nozzles) at just about any weld supply shop.
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39 of 41 people found the following review helpful By Philscbx on January 6, 2009
I have had my Millermatic 140 unit for a little over a year now, and it gets used more than my much larger Miller 250 220 volt. I can weld as small as I want to 1/2".
It's rated for 3/16's.
But if you know what your doing, 1/2" is no big deal.
This guy can plow along like the baddest units out there.

You also need to go to welder supply to get bottled gas mix for it.
Not cheap, but there's no way around it unless your going with flux core.
Then you also need the electronic mask.
Grinders, clamps, safety equipment, safe storage high on a solid cart.

I always forget to make a video for items here.
So next project with this guy gets a video of 1/2" steel for those that have no clue.
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20 of 25 people found the following review helpful By S. Traci on October 29, 2011
I bought a Chicago Electric MIG welder and then this MIllermatic. Using them both side by side was a lesson in why you spend the good money on a great tool vs. a cheap one. The Chicago Electric (Harbor Freight) has two settings, Min and Max. But even at the Min setting I was blowing through 22 and 24 gauge sheet all the time. The feed control was fine, but at the higher setting it wasn't fast enough to create a bead. The splatter was terrible, leading to burst and sloppy welds. It was like trying to weld with two blunt ends of an extension cord.

The Millermatic is a dream. Controls for various thicknesses of material. Feed controls that keep up with whatever setting you need. Right out of the box I put a bead down between to pieces of 14 gauge tube. It was beautiful. Welded 24 gauge sheet with no burn through, not even a dimple.

Used flux core and gas/steel with both welders 0.030

Bottom line is you get what you pay for.
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6 of 6 people found the following review helpful By Richard on May 16, 2012
Verified Purchase
Purchased this welder to help with building a demo derby car. Welder showed up on my door step about 1 week after ordering.
After everything is said and done, it totaled about $1,200 for the welder, a bottle of argon from a local supplier, safety gear(gloves and a helmet), extra wire, and a welding cart.
The welder works perfectly. I have had trouble with it tripping the 15 amp breaker when cranked all the way up. If you are welding heavy, make certain you have a 20 amp breaker available.
Overall, its a Miller and hard to beat. The only bad part was the local supplier harassed me for not buying the welder from him.
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