M116a3 Welding trailer build.

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Robby116a3

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New member here not sure if this is where to post this, but, I’m Converting a M116a3 trailer I acquired acouple weeks back into a welding trailer, just finished mounting some Surplus OSKOSH mud flaps on it and also finished up wiring the 7 pin plug to fit my truck. Coming together.
 

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tobyS

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I don't know about you, but I always want a cut off torch handy. I used an 1101 and lay 2 oxygen (oxygen can lay down) tanks next to the welder, and have a place for 2 20# LP tanks. I went with a smaller tire to bring mine level.

Looks like a good start. If you go for a roof, put some slope on it so it doesn't pool water.
 

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Robby116a3

New member
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8
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Location
Massachusetts
I don't know about you, but I always want a cut off torch handy. I used an 1101 and lay 2 oxygen (oxygen can lay down) tanks next to the welder, and have a place for 2 20# LP tanks. I went with a smaller tire to bring mine level.

Looks like a good start. If you go for a roof, put some slope on it so it doesn't pool water.
Interesting, wasn’t planning on building a roof for mine but now that you mention it; it seems like a decent idea....
And that was one of my concerns is where I was gonna put the oxy acetylene tanks, thought of cutting out one of the floors and having them lower than the trailer platform but then I lose some ground clearance.
 

simp5782

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I am currently building the same intention project with a m200 trailer. My welder is an old air cooled dc unit. Going to add a MEP002 or 3. My hypertherm 900 plasma with a 60gal air tank and torch. One trailer with everything that only a big truck can pull and stop to detour folks from stealing it. Looking at doing an overhead cover for the trailer as well
 

Robby116a3

New member
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8
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Location
Massachusetts
I am currently building the same intention project with a m200 trailer. My welder is an old air cooled dc unit. Going to add a MEP002 or 3. My hypertherm 900 plasma with a 60gal air tank and torch. One trailer with everything that only a big truck can pull and stop to detour folks from stealing it. Looking at doing an overhead cover for the trailer as well
I was looking at the m200s but for some reason I thought they had air brakes and I figured they had to be pulled buy a truck of decent size, I think this m116a3 will work perfect and I’m hoping my 3500 diesel truck will be able to handle it which I’m guessing it will. From the sounds of it your setup is going to be heavy duty! A hypertherm 900 is a decent sized plasma if I’m correct.
 

98G

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I was looking at the m200s but for some reason I thought they had air brakes and I figured they had to be pulled buy a truck of decent size, I think this m116a3 will work perfect and I’m hoping my 3500 diesel truck will be able to handle it which I’m guessing it will. From the sounds of it your setup is going to be heavy duty! A hypertherm 900 is a decent sized plasma if I’m correct.
You made the right decision. An M116A3 is a much better choice for a trailer that will be pulled with a pickup truck.

I've had both. I like the M200A1s but they require an airbrake truck to activate the brakes.
 

tobyS

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I wanted some space to carry up above. It has a really solid headache rack at the front. I should use aluminum but will probably use gavanized to enclose it. I tried to make a bit of overhang at the back with a rain gutter to have a place to work I have a nice hose reel for the torch and hang my cables (some changes since photo). I use it so much, I havnt wanted to empty it and finish. I like my little Hobart...has lots of copper in the generator and a good high frequency start for stick. But I can't do mig with it.

Edit. Here is my altered tongue to keep the surge brake. On my surge unit, I put a bolt through to pin it solid until I rehook and bleed the brakes.
 

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Robby116a3

New member
7
8
3
Location
Massachusetts
I wanted some space to carry up above. It has a really solid headache rack at the front. I should use aluminum but will probably use gavanized to enclose it. I tried to make a bit of overhang at the back with a rain gutter to have a place to work I have a nice hose reel for the torch and hang my cables (some changes since photo). I use it so much, I havnt wanted to empty it and finish. I like my little Hobart...has lots of copper in the generator and a good high frequency start for stick. But I can't do mig with it.

Edit. Here is my altered tongue to keep the surge brake. On my surge unit, I put a bolt through to pin it solid until I rehook and bleed the brakes.
Sounds like you have yourself a sweet setup! Those Hobart Engine drives are really good machines for the money! I just went with Miller because of personal preference from what we use at work. I was looking at your trailer photo and I saw the leveling jacks that it has on the two back corners, I really like that feature. Back to the roof idea, I’m really digging it, keeping the rain and snow (depending where you are) off of all your expensive equipment is really nice. Looks good.
 
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