? wire size does MM200 like ?

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Hey all ! I'm in automotive field,wanna dedicate my ol mm200 to the heavier stuff, frame work at approx.3/16" steel , MAYBE 1/4" max.Will occaisionally use on lighter stuff, maybe,not necessarily,(also have a synchro 250).I've heard (read)mention that certain welders run better with XX size wire . Anyway,wanna replace liner for maintenance purposes,figure nows the time ta find out. Whats your opinion?? Also, does liner need to be changed with every wire size change ,like say from .030 to .035 , or just on bigger changes from say, .035 to .045 ?? Thanks in advance !                                                                                                  Tony
Reply:It's not so much a matter of what wire size the welding power source likes, it's more what the material being welded and required amperage needs.As for liners, I've run .023 wire in a liner capable of running .045 but liner cleanliness and overall condition will play a roll in how successful a particular machine and set up is.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:O.K. D55 , Thanks for input ! Yeah was wanting to get the new liner, spool, wire set-up for .045 , figured keep the beast set up for the max( can always use the synchro for light guage stuff),but thought I read somewhere , prettier results from MM with "XXX" size wire??? Also , good ta here-I could swap from .045 , to say.030 in a pinch for , say  , some odd -outta position welding,which wouldnt be practical for Synchro .
Reply:Setting the unit up to run an .045 wire for 3/16" or 1/4" seems over kill to me. I'd go with an .030/.035 liner and set the unit up with an .035 wire. Realize at the 140 - 200 amp range that you might possibly use to weld 3/16" - 1/4" steel, an .035 solid wire is going to have a higher current density (higher energy arc) then an .045 wire, resulting in the .035 wire having the potential to produce a deeper penetrating weld. In the same 140 - 200 amp range .030  is going to have higher current density then an .035. At home, I mainly weld 16 ga - 1/4", for this thickness range, I prefer .030 as my general purpose wire size.ESAB Migmaster 250 Hobart Ironman 230Multimatic 215TWECO Fabricator 181i & 211iHH125EZ - nice little fluxcore only unitMaxstar 150 STH - very nice
Reply:Awesome insight Dan ! Great , Great info ! This is the kinda stuff I was lookin for-Enlightens , gets a rookie like me goin in the right direction  ! much appreciated !
Reply:I should have clarified - the .023 wire thru the .045 liner was with a 400A gun that I had to use in a pinch when the gas hose in the regular GA-20C gun took a dive.  I agree with Dan on going with a .030/.035 liner as standard - that can be used with confidence with .023 wire - and have the .045 liner available if you ever think you'll ever be going or need to go that big.  Just be sure to use the correct contact tip in any case to assure the best performance.My typical wires are .030 and .035 and for what I usually do if I had to choose one it would likely be .035.  But that's for me.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:I run 035 in my MM200, seems about right for most.Tim Beeker.
Reply:IMO. .030 will do just about anything you need in the automotive world. You might struggle a bit running .035 and trying to do sheet metal work, the lowest voltage recommended for that size wire will probably still put to much heat into thin gauge stuff. I run .035 in my migmaster and I was just doing some sheet metal stuff tonight, it did 'ok' but its still do hot and I have to really watch burn through.ESAB MigMaster 275Miller Econotwin HFMiller Syncrowave 250
Reply:I was doing lap welds with .035 tonite too on trailer fenders no problem.   Careful on how folks define sheet metal. I was doing 16ga but 24 or thinner is common on newer vehicles.    I would say .035 if u r doing 16 ga to say 1/4" a lot.  .023 if doing almost al sheet metal and .030 if u r in between doing a bit of bothBased on your post I would go with .035045. Is too big for your machine for general use.   You really a 250 class machine for 045.Last edited by soutthpaw; 08-19-2011 at 10:32 PM.Tiger Sales:  AHP Distributor    www.tigersalesco.comAHP200x; AHP 160ST; MM350P,  Spoolmatic 30A; Everlast PowerTig 185; Thermal Dynamics 60i plasma.  For Sale:  Cobra Mig 250 w/ Push-pull gun.  Lincoln Wirematic 250
Reply:If you have to ask a question about what size wire to use, you need to stay away from welding on any frames or structural componenets on vehicles. You simply don't have the knowlege to do this right and you are a long way from there at this time. Most manufacturers specificly say not to weld on frames, but to replace them. Those that do, have very specific procedures for this and frequently satndard E70 mig wire is not correct for this application if the frame is using high tensile steel or is heat treated. Most newer vehicles use these sorts of steels to save on weight. Stick to welding up  nonstructural sheetmetal body parts..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Thats my fault, i didn't clearly read your post. You said you'd be using it on 3/16 to 1/4 stuff. For sure go with .035.ESAB MigMaster 275Miller Econotwin HFMiller Syncrowave 250
Reply:I have my MM 200 loaded with .045 Hobart FabTuf 960 and it runs great.For general automotive stuff short of body sheet metal .035 is a good choice.
Reply:Originally Posted by DSWIf you have to ask a question about what size wire to use, you need to stay away from welding on any frames or structural componenets on vehicles. You simply don't have the knowlege to do this right and you are a long way from there at this time. Most manufacturers specificly say not to weld on frames, but to replace them. Those that do, have very specific procedures for this and frequently satndard E70 mig wire is not correct for this application if the frame is using high tensile steel or is heat treated. Most newer vehicles use these sorts of steels to save on weight. Stick to welding up  nonstructural sheetmetal body parts.
Reply:i like .030 in my lincoln 180ctackleexperts.comwww.necessityjigs.comhttps://www.facebook.com/groups/mach...dingequipment/