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Miller 350P

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  • Miller 350P

    Hi guys I dont post here a lot, but i read quite often. I work in a plant that has quite a few mig welders. In the dept. i work in we have an old Miller CP250SM with a hobart 17 feeder. One of our other depts has 2 MM350P that they are not using anymore. I was thinking of trading out the CP250SM for the 350P. However the Engineer that is in my dept says the CP250 is a better welder because it is bigger in size "It is bigger and more powerfull" remeber he is an engineer. From everyting i have heard the MM350P is the Cats meow. Am I worng. We mostly weld Thick wall square 1.5" tubing and plates that are no greater than .5" to that tube. Thanks for your help.

  • #2
    the 350p is an awesome machine and you wont do wrong for using it. the pulse feature is alot of fun on the thin stuff

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    • #3
      Sorry i was a little unclear about this. Our current CP250SM is about the size of a school bus. So the guy i work with thinks that is has to be way more powerfull than the 350P. I cannot find anythin on the CP250SM, so i am not sure what it truly is. It has about 5 coats of orange paint on it so, the only thing i can read on it is the model. The dial to turn up the voltage has numbers written on it in permanant marker. It is so old, I think Moses may have used it to weld togther the Ark.

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      • #4
        My GUESS would be that the 250 machine is only 250 amps, and the 350P is 350 amps... which would tell me that your engineer just thinks a bigger machine is more powerful. Perhaps the old machine is a transformer machine.

        Either way, power's not everything. The 350 will handle the work you have. It could also save countless hours of cleaning up spatter or other defects. The pulse feature is nice, even on heavy materials, and can reduce spatter. You also may find yourself with much less downtime due to tips burning. The 350P can use one tip for longer than any machine I've ever worked with.

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        • #5
          An engineers job....

          50 years ago sized mattered. I think I know what machine you are talking about and if it's what I'm thinking about it was our grandparents answer to challenge O/A in that time period. Again, if it's what I think it is, it's a multi transformer (stepped) system to produce the huevos to dig into 1/2 to 1 1/2" steel. Worked great but was hard to take to the job. Remember; engineers will always default to "bigger is better" I have done enough residential structural/spec work to see this fact in action. It seems if they are unsure of a paticular load, stress or other spec, they simply apply the maximum support to cover their a$$.

          Go for the 350P, I along with several others here have one and I'm not sure but I don't think you will have any luck finding anything in it's class that comes close?

          Good Luck...

          TacMig

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