Model # 7643

Internet # 203287642

90-Amp Flux Welder

$123.62 /each
  • 18-gauge or 3/16 in. steel weld thickness for multiple tasks
  • Ideal for working with steel or stainless steel
  • Features a warning light thermal protection

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Product Overview

The Speedway 90-Amp Flux Welder will help you finish all of your around the home welding jobs quickly and efficiently. The single phase, 115-volt welder operates at 10% at 90-Amps, uses 0.035 in. or 0.030 in. wire with a thickness of 18-gauge to 3/16 in. steel. With a wire feed speed control of 0-400 IPM and a clamp cable length of 10 feet, this welder will assist you in safely and quickly completing your weld on steel or stainless steel. The thermal protection with a warning light will also notify you in the event of the welder beginning to overheat. Induces .030 and .035 tips.

  • 115-Volt, single phase; duty cycle: 10% at 90-Amp, 19-Volts
  • Wire capacity: 0.035 in. or 0.030 in.
  • Weld thickness: 18-gauge or 3/16 in. steel
  • 0-400 IPM wire feed speed control
  • Self regulating feed control
  • Thermal protection with warning light
  • 10 ft. cable clamp length
  • Weldable metals: steel or stainless steel



Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 


Engine Power 
Electric (AC) 
Maximum amperage output (amps) 
Minimum amperage output (amps) 
Power Tool Product Type 
Welding Supplies 
Tools Product Type 
Power Tool 
Torch included 
Voltage (volts) 
Welder Type 
Welding Supplies Product Type 
Arc/Stick Welder 

Warranty / Certifications

Manufacturer Warranty 
1 Year 

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Customer Questions & Answers

90-Amp Flux Welder
90-Amp Flux Welder

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How gd is the Speedway welder for house use

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May 11, 2016
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what type stainless steel wire does it weld with

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Customer Reviews

Rated 3.7 out of 5 by 10 reviewers.
Rated 4.0 out of 5.0 by Perfect for getting started on welding projects! I have started trying to become more proficient at welding so I can work on small scale projects around the house and on my car. This welder has been a great starter welder for me as I have been trying to learn from a few friends that have more practice. I have been able to successfully use it on some of the small projects and hope to keep working with it. It has been a great addition to my tools! Definitely recommend! July 9, 2016
Rated 4.0 out of 5.0 by A good homeowner's welder This welder would be perfect for light duty fixes. It will only weld 18g or 3/16" steel which is adequate for most home owners. It was a little challenging assembling it due to confusing directions but it went together ok. I was surprised there was no flux core wire included. I had to buy some separately so keep that in mind. It worked nicely on 1/8 thick steel for my snow blower skids. I added little skis to help it float over a gravel driveway better. Make sure you purchase all safety equipment when using the welder May 29, 2014
Rated 4.0 out of 5.0 by Quality Welder for Homeowner Tasks, Simple Operation, Adjustable Current This 90 amp wire feed welder by Speedway is good enough to get a lot of basic welding tasks around the home or garage done. You plug it into regular house voltage, no special power lines are required, just make sure the outlet you are using has a 20amp breaker/fuse. It's not a professional welder of course, but if you need to fix a trailer, weld some yard art, work on the 4x4 here and there, it gets the jobs done. It's packed in styrofoam, but the wires are just rammed into the box. Take some time to straighten them out so they aren't so tangled up. It makes using the welder much easier. This welder is supposed to have two different sized tips included. .030(.8mm) and .035(.9mm). Mine didn't. It had two tips included, both .035 size. I wanted to use .030 wire so I had to go buy a tip for it. I wasn't very pleased about that. It should have been in the box. Also so you know in advance, no welding wire is included. Go to Home Depot and pick up a small spool (max size 2lb spool) of the wire size you prefer, either .030 or .035. NOTE: This welder will not fit ten pound spools. The manual is poor, the writing is obviously translated from another language and it doesn't help much. It will get you set up and running, but after that you're on your own for the most part. Read up on wire feed welding if you have never done it. The welder has an adjustable current output, you get a "Low" and a "High" setting. The manual and the welder do not tell you the amperage that each switch gives. For thicker metal and deeper penetration of the weld, use the high setting. For thin metal use the low setting. It takes practice to know which setting, but you'll get the hang of it. The manual says it will weld steel up to 3/16th inch thick and I agree with that. Maybe even just a bit thicker if needed. It has an overheat warning light if you push it too much. It has a duty cycle of 10% at 90 amps. The wire feed speed is also adjustable, there are no numbers on the dial to tell you how many inches per second you'll be feeding wire at. Again with this welder, it's a learning curve and you'll quickly find out how fast to feed wire while you weld. The welding handle itself and the ground clamp has cords about six feet long each. The welding handle fits nicely in a gloved hand and the feed lever is easy and comfortable to operate. WELDING: I was able to get some nice welds with it. I am not in any way shape or form a professional welder and I do not pretend to be. I practiced, I watched videos online and I read all about it. After a few hours of messing around, I was able to get strong welds that weren't totally sloppy. I'm still learning of course, but I think this is a good welder to start with. It's not complicated and it works good. No gas is needed, wire for it is not expensive at Home Depot and it has plenty of power to get the type of jobs I've been doing around the house and garage done. Get a welding helmet (mandatory), some welding gloves and get to work. PROS: Works easily and reliably Adjustable wire feed speed Adjustable welding current (two settings) Carrying strap included Welder is light enough to move around to jobs Loading wire, changing spools is easy CONS: Packed poorly Manual is poorly written, gives little help Didn't have two different tip sizes as listed May 23, 2014
Rated 5.0 out of 5.0 by 90-AMP FLUX WELDER excelent product Small machine , excelent product, nice job with the 90-AMP FLUX WELDER August 29, 2015
Rated 3.0 out of 5.0 by The tips As for the tip i think it comes with one size that is supposed to work for both size wire. It says TB1.0"" so it must be 1.0 tip whichis 1 size bigger than .035 and two sizes bigger than .030. July 20, 2015
Rated 1.0 out of 5.0 by worst purchase made I order this flux welder on line & had it shipped to my home. When it arrived I opened it & the nubs where busted, so I return it to the store with no problem. I did not reorder another because I didn't want to wait for another week for it to arrive & it be busted too. I went to a competitor that had one in stock & got the same thing for $30.00 cheaper and have had no problem with it. April 14, 2015
Rated 2.0 out of 5.0 by Weak welder Welder is too weak should only make welder a with minimum of 100 amps April 22, 2014
Rated 5.0 out of 5.0 by very pleased with gift my husband is thrilled with this welder. He thinks it is even better than another one he was looking at at another competitor. He stated he felt that this had even more features and is better quality. January 8, 2013
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