Announcement

Collapse
No announcement yet.

Millermatic 252 Eats Tips and about 1 in 10 bad Starts

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Millermatic 252 Eats Tips and about 1 in 10 bad Starts

    I have a Millermatic 252 and it eats tips like M & Ms This is very annoying and expensive any Ideas

  • #2
    Originally posted by Richard Baird View Post
    I have a Millermatic 252 and it eats tips like M & Ms This is very annoying and expensive any Ideas
    tough to speculate without...

    what you are welding.. material & thickness

    machine settings

    gas & flow rate

    wire type and size... brand...

    contact tip size and style...

    wire stickout

    not to mention some pics of the "eaten tips"

    Last edited by H80N; 10-07-2014, 02:43 PM.
    .

    *******************************************
    The more you know, The better you know, How little you know

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
    Dynasty 350DX Tigrunner
    Dynasty 200DX
    Millermatic 350P w/25ft Alumapro & 30A
    Millermatic 200

    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

    Comment


    • #3
      If your using real Miller tips, you likely won't have this problem. If you are then its obvious that your wire is slipping.

      See, we don't read minds, absloutely no idea how old your gun is, if you've ever changed a liner, if your using clone (cheap) tips, condition, or correct size of your driver rollers,

      Comment


      • #4
        How is it eating tips? Is it burning back and fusing the wire, or actually melting the tip?
        Obviously, I'm just a hack-artist, you shouldn't be listening to anything I say .....

        Comment


        • #5
          Sorry, I just went back and re-read your original post, and the title. Sounds like you are burning back and fusing the wire to the tip.

          If it is not due to incorrect voltage/wire speed settings, open the machine up, check your capacitors. This happened to me with my LN-25, the capacitors were broke loose, bouncing around at the bottom, we replaced them with new, more secure mountings, no more burning back, or wasting tips.
          Obviously, I'm just a hack-artist, you shouldn't be listening to anything I say .....

          Comment


          • #6
            Extremely unlikey in a 252, it would mean that his drive is bouncing around, and that would throw an error. His wire is slipping to eat tips. Whether or not its a failed liner, rolls, to cheapo tips is an unknown.

            Comment


            • #7
              A welder such as the MM252 could burn tips and stick the wire if, as mentioned above, the wire is slipping in the rollers. Also, the user could have set way too much voltage and too little wire speed. It could also be a dirty liner or corroded wire.

              On my MM252, I changed the outer cover on the original torch to the one that permits a 1/8" recess for the tip. This shields the tip a bit more. I've yet to burn a tip, however, after a year of intermittent usage. I use only original Miller parts.
              Miller Syncrowave 200
              Milermatic 252
              Lincoln AC/DC "Tombstone"

              Comment


              • #8
                Originally posted by Synchroman View Post
                A welder such as the MM252 could burn tips and stick the wire if, as mentioned above, the wire is slipping in the rollers. Also, the user could have set way too much voltage and too little wire speed. It could also be a dirty liner or corroded wire.

                On my MM252, I changed the outer cover on the original torch to the one that permits a 1/8" recess for the tip. This shields the tip a bit more. I've yet to burn a tip, however, after a year of intermittent usage. I use only original Miller parts.
                I did just the opposite. Tip flush and no issues

                Comment


                • #9
                  Originally posted by ericher69 View Post
                  I did just the opposite. Tip flush and no issues
                  The idea behind reccesing the tip, is for gas to wire coverage, and to prevent the tip from shorting to the work. Flush means that your working in a PERFECT enviroment, ie, no outside air movement, kinda silly really, as you may be using more gas than is required.

                  Comment


                  • #10
                    Millermatic 252 Eats Tips and about 1 in 10 bad Starts

                    It is PERFECT! In the shop with NO air movement.

                    Silly is chastising someone without knowing what works for them.

                    Comment


                    • #11
                      Originally posted by ericher69 View Post
                      It is PERFECT! In the shop with NO air movement.

                      Silly is chastising someone without knowing what works for them.


                      Gee.... if it were me...

                      I might have a tendency to listen to Cruizer's voice of experience.

                      instead of getting all chafed......
                      Last edited by H80N; 10-12-2014, 05:50 PM.
                      .

                      *******************************************
                      The more you know, The better you know, How little you know

                      “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                      Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                      My Blue Stuff:
                      Dynasty 350DX Tigrunner
                      Dynasty 200DX
                      Millermatic 350P w/25ft Alumapro & 30A
                      Millermatic 200

                      TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

                      Comment


                      • #12
                        Millermatic 252 Eats Tips and about 1 in 10 bad Starts

                        Just stating what works for my use.

                        Home hobbyist
                        No air movement
                        3/8-1/2" steel
                        0.035 wire
                        No production work
                        No issues

                        Comment


                        • #13
                          I bought off brand tips for my M-25 gun, as the LWS didnt have any Miller tips. I have been having similar issues with the gun using them. It keeps shorting to the tip, and I have gotten a bunch of birdnesting with .035 wire. I have never had issues with birdnesting with.035 before. Going to change back as soon as I get to the weld shop again. What a pain.

                          Comment


                          • #14
                            Guys-

                            Recessed and flush is all about transfer mode. Are you short arcing or spraying? Very important to get the arc length right. If i spray arc with an M25, flush 1/2" nozzle, i'm sure i would get lots of burnback.

                            Comment

                            Working...
                            X