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Do they make a flux core nozzle for the Miller guns?

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BrooklynBravest

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Discussion starter · #1 ·
using a multimatic 200 for this project at work. Running it flux core and I bought the only miller gasless nozzle i can find. Turns out its for the mdx-100 series which is the consumer level gun.

The MM200 uses the acculock mdx-250, for which it appears no nozzle exists. Bit odd considering its a jobsite style portable machine?

I destroyed the gas shielded nozzle by running it without cleaning enough on flux core wire basically.
 
#4 ·
me i would buy one of the mdx100 fluxcore nozzles and see if it wont fit the mdx250. if it doesnt fit it might be as easy as slighly enlarging the nozzle backend opening so it can slip on the mdx250 diffuser. but im a problem solver with stuff like that and find a way
 
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#5 ·
To be clear, I guess.................I run flux core without the gas shield. I like to run a short stickout + you can't see crap(at least I can't) with the bulky gas nozzle in the way.

I bought the Lincoln K2651 gun many many years ago. It was the first that was built like a regular stinger you'd use for stick welding. I'm mostly a stick welder, and can't really stand the way the handles are made on the MIG guns.

I looked at the Lincoln website, and the page no longer exists for this gun. It may have been discontinued. Amazon has it https://www.amazon.com/Lincoln-Electric-K2651-2-Semiautomatic-Welding/dp/B008BJI9WS Best gun I've ever used, I love it.

View attachment ln25.JPG

With the tapered contact tip, I can look directly at the puddle when going uphill without having to move off to the side, or look up from underneath. It's like welding with a stick welder.

View attachment ln25 8.JPG (Never mind that big blob of porosity..........a bunch of spatter stuck to the contact tip worked loose, and traveled with the wire into the puddle. Pretty common with NR211) You need to pinch the crud off the tip once in a while.
 
#6 ·
cornchip said:
me i would buy one of the mdx100 fluxcore nozzles and see if it wont fit the mdx250. if it doesnt fit it might be as easy as slighly enlarging the nozzle backend opening so it can slip on the mdx250 diffuser. but im a problem solver with stuff like that and find a way
Click to expand...
Along those lines, now that you've got me thinking............I could probably get some copper round stock, and turn it so it fits my diffuser tight enough to stay on when running self shielding wire. Keep the dingle berries from plugging the holes:waving:
 
#7 ·
Take a regular nozzle for that torch, make a few slits in the end of it and hammer them. In other words, just make the opening of the nozzle smaller so spatter can't get in it.

AFAIK, the smaller opening on the FCAW nozzle is the only thing that makes it special... that and I guess it's made of some sort of molded plastic.
 
#9 ·
farmersammm said:
Along those lines, now that you've got me thinking............I could probably get some copper round stock, and turn it so it fits my diffuser tight enough to stay on when running self shielding wire. Keep the dingle berries from plugging the holes:waving:
Click to expand...
I wrap mine in aluminum tape. You might want to try it. Just gotta keep in mind what the adhesive is gonna do. The stuff I use is a Nashua product. I think the adhesive is acrylic. Comes off pretty easy with brake cleaner.
 
Discussion starter · #12 ·
cornchip said:
me i would buy one of the mdx100 fluxcore nozzles and see if it wont fit the mdx250. if it doesnt fit it might be as easy as slighly enlarging the nozzle backend opening so it can slip on the mdx250 diffuser. but im a problem solver with stuff like that and find a way
Click to expand...
Its sitting next to me, very thin wall will likely not survive surgery.

If need be i will just print one.

tapwelder said:
Print one.
Click to expand...

Probably what is going to happen, but I was trying to avoid modeling one. I guess a slip fit one is easy.
 
#14 ·
Don't use a nozzle at all. Spray down your diffuser with ceramic anti-spatter once every 8 hours, or if you just like having a nozzle spay everything down. As long as you don't kill the coating by smacking it to knock off the spatter, one can will last for months. The first time put on a few coats to build it up, at least I do. 1 can isn't cheap but it will last longer than 3 cans of normal anti-spatter so it evens out. Loctite Anti Spatter Welding Aid, 9.5oz/269g SF 7900 1616692 | Zoro
 
#15 ·
My miller's I change to Tweco out of box.

Dave

BrooklynBravest said:
using a multimatic 200 for this project at work. Running it flux core and I bought the only miller gasless nozzle i can find. Turns out its for the mdx-100 series which is the consumer level gun.

The MM200 uses the acculock mdx-250, for which it appears no nozzle exists. Bit odd considering its a jobsite style portable machine?

I destroyed the gas shielded nozzle by running it without cleaning enough on flux core wire basically.
Click to expand...
 
#17 ·
BrooklynBravest said:
Its sitting next to me, very thin wall will likely not survive surgery.

If need be i will just print one.




Probably what is going to happen, but I was trying to avoid modeling one. I guess a slip fit one is easy.
Click to expand...
No clue what this would fit, but here's a start. https://grabcad.com/library/nozzle-24

That design looks 3D print friendly. Just needs a steeper taper and a smaller opening. I like the 4 tabs at the bottom to allow for clamping. something like a Oetiker clamp could work well for that.
 
#18 ·
Lincoln Miller and Profax all make a gun designed special for self-shielded wire...they are all made alike and the parts are pretty much the same and all wil fit except for the adapter on the wire feeder end..I think one company makes all of them. Miller is an Ironmate Fc 1260...Im not sure what the Lincoln gun is called but it has the same number...1260. Profax makes both of the guns for Miller and Lincoln. Ther is a FC 1150 available as well..it is a heavier duty gun. Tis for miller and Lincoln too. I use an Ironmate 1260 all day long 6 and 7 days a week wide open and have no troubles. The gun itself lasts a lot longer than a regular gun for gas shielded wire.

Popeye
 
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