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Milermatic 135 question

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  • Milermatic 135 question

    I am begining to build an enclosed ATV trailer and I have a Milermatic 135 and use with flux core wire (too windy and no garage). Some people are telling me the 135 is not strong enough to weld 3/16 channel and angle. Any thoughts? I am having the tongue welded at a trailer shop that has a monster mig welder so I am not worried about that part.

  • #2
    The 135 should be fine for 3/16 with flux-core. Ive welded up to 1/4 with it. Now that i have a 251 i can see how limited the 135 was though. And for the coupler, just bolt it on.

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    • #3
      3/16 i think would be pushing the limits of that machine my opionion!!!! you could tapper the edges and making two passes

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      • #4
        I welded some racks that were 1/4'' mild steel with a 75/25 mix with my 135 (single pass) and the racks are holding 3 tonnes each. I did taper the channel though before i welded it.

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        • #5
          Originally posted by kelly'$mygirl
          I welded some racks that were 1/4'' mild steel with a 75/25 mix with my 135 (single pass) and the racks are holding 3 tonnes each. I did taper the channel though before i welded it.

          Thanks for the response! The heavy welds will be done at the trailer shop.

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          • #6
            3/16 with flux core is definitely within the limits of that machine. With proper care, 1/4 may be possible. I have done a lot of 3/16 with mine. Now anything over 1/8 with solid wire is definitely pushing it. It will give a cold 1/8" weld at best, but it will barely do it. If you have good single pass 1/4's, then you got very lucky since the recommended range (according to the Miller calculator) for 1/4" steel starts at 180 amps....way more than the 135 can put out.


            One key to getting good output with the 135's is the power input. They need to be on a dedicated circuit. If you must use an extension cord, use a heavy one and keep it as short as possible.

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            • #7
              I have a 30 amp circuit just for my 135. Before when i ran it off a 15 amp circuit i was always tripping the breaker. It was spattering all the time and the welds seemed cold.

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              • #8
                Originally posted by kelly'$mygirl
                I have a 30 amp circuit just for my 135. Before when i ran it off a 15 amp circuit i was always tripping the breaker. It was spattering all the time and the welds seemed cold.
                Thanks again,
                We just took delivery of a Haulmark trailer at work. So I figured why buy plans when I have a full size model to work off. So I crawled under it to snap some pics to start the plans. WHAT A P.O.S. and we paid almost 10K for it. The frame is made with 2X6X1/8 rails (actually I think it's thiner than that) and 5x1/8 C channel. The welds look like a 4 year old did it. For strenght they welded to channels together in certain places.


                The trailer I am starting is a 18' x 7' toy hauler with living space. Rear ramp for loading the ATVs and a bunk area up front. 5200 watt generator and A/C (gets hot in South Florida). I will post pics during the process. Thanks again!

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                • #9
                  P.S. I just talked work into buying a Miller plasma cutter....he he it's good to be the king.

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                  • #10
                    Originally posted by Rufridr069
                    Thanks again, .......

                    The trailer I am starting is a 18' x 7' toy hauler with living space. Rear ramp for loading the ATVs and a bunk area up front. 5200 watt generator and A/C (gets hot in South Florida). I will post pics during the process. Thanks again!
                    That's going to be pretty big project for MM 135. I'd get a bigger machine.

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                    • #11
                      Yeah, I too definitely agree that a small 120 V unit isn't a good choice for this project. A small 230V 175/180 amp unit would be my minimum for this project.

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                      • #12
                        Thanks,
                        You guys are giving me ammo on how to tell the wife I need another welder....see there is a method to my madness.

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                        • #13
                          Originally posted by Rufridr069
                          Thanks,
                          You guys are giving me ammo on how to tell the wife I need another welder....see there is a method to my madness.
                          If your wife asks.....I'm going to tell her I said no such thing!
                          Last edited by wb5jhy; 04-01-2006, 01:04 PM.

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                          • #14
                            Remember........it is easier to ask for forgiveness than to ask for permission. ( the wifee taught me that one. )


                            That and.... he who dies with the most toys wins.....are wise words to live by.

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                            • #15
                              mm135

                              Originally posted by Rufridr069
                              I am begining to build an enclosed ATV trailer and I have a Milermatic 135 and use with flux core wire (too windy and no garage). Some people are telling me the 135 is not strong enough to weld 3/16 channel and angle. Any thoughts? I am having the tongue welded at a trailer shop that has a monster mig welder so I am not worried about that part.
                              as the picture states, you can go a little more than 1/8" , with flux core wire, and, maybe a few multiple passes , for the thicker you might wanna stick weld it,

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