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spiral 02-01-2009 07:40 AM

Which welding machine to buy?
I have 100Volt and 200Volt power.
I have a 12 inch girder 2 storey building originally built for heavy use. I just need to weld angle iron clips on to the girders. It also has uses C-channel for the curtain wall and I would like to enlarge the window sizes.
In another life I spent some time welding in a factory I just do not know what to buy.

Thanks for any advice

Bondo 02-01-2009 09:30 AM


A 220V Stick Welder will do what you want to do....

Aggie67 02-01-2009 10:26 AM

Is this a house, or are you a contractor? Sounds a little funky. I have to ask, is this for commercial work or residential, and are you the homeowner. The question is a little odd, so it makes it look like welding to structural members of a building appear to be over your head. I do it for a living, and we won't modify or increase the load to a structure's envelope (roof, curtain walls, etc) or increase opening sizes without a sealed drawing or a permit, for insurance reasons. We also don't let our guys weld structural until they are qualified to the D1.1 structural welding code, using our in-house weld procedures.

Also, do you know what rod are you going use?

BTW, we use Miller XMT304's, Miller Dynasty 200's, Miller Maxstar 180's, Miller Bobcat 250's, Lincoln Ranger 250's, and we have an old Shopmate with a wire feeder.

spiral 02-02-2009 02:14 AM

Thanks for the response.

I own the building and I am in the process of doing a partial renovation.
The building is an odd shape 40 meters long and 7 meters deep with the long side facing the ocean. The structure I won't touch and honestly some of it I do not understand. Before touching any of it I would bring in an engineer.
The curtain wall is made up of C-channel with sheet metal covering and then almost 3/4 of an inch of sprayed stucco concrete. This is very rusty in parts and I will replace the worst of it for now. I was planning to replace some of the C-channel and the exterior. Still unsure what I will use for the exterior.
The first floor maybe rented to a cabinetmaker and the second is for me to play in.


ponch37300 02-02-2009 01:56 PM

I'm not a pro like Aggie but I do do a fair amount of welding. From what I have seen/read most buildings are done with a stick welder. I have done some stick welding but not alot, mostly mig. I do have a miller xmt304 like aggie and I also have a miller s64 wire feed attachment for it. The xmt will do stick and the s64 will let the xmt do mig. The xmt will also do tig with a few other attachments.

Now when shopping for a welder you need to decide what process you are going to be doing, stick, mig, tig. I choose the xmt because it will do all of these very nice with a few accesories. Then you need to decide how much you are willing to spend, you can get a cheap stick welder for a couple hundred. If I were you I would get the size of the metal you are going to be welding and go to a local welding supply house. I am from wisconsin and have an account with Airgas. They are good to work with and have pretty knowledgable workers. You are going to need to buy some supplies when you do this so it doesn't hurt to establish a friendship with a supply house.

Also look for used welders, alot of people are selling things they don't use everyday because of the economy and for the most part welders are a pretty solid machine if you buy a good one.

spiral 02-05-2009 11:49 PM

Thanks for the advice.

I saw the selfdarkening masks. They did not exist when I was welding. I guess they would take me some getting used to. Maybe that why I have this crick in my neck from flipping my mask down all day.


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