Twentieth Century Welder Help
RSS | Subscribe | Contact Us | Advertise | About Us
Results 1 to 16 of 16
  1. #1
    Join Date
    Apr 2018
    Location
    Twin Cities, MN
    Posts
    2

    Twentieth Century Welder Help

    Hi All- First time post, brand new to welding and looking for some help.

    I just picked up an old Twentieth Century Heavy Duty Welder and looking for any info that might be out there. I have scoured the web and can't find much of anything besides a couple auction sites that sold one of these.

    Looks like its 260 Amp, 230V, AC Only?

    Does anyone have a manual or know if these are decent machines? Here are a couple pics.

    Name:  IMG_8091.jpg
Views: 186
Size:  85.1 KBName:  IMG_8098.jpg
Views: 178
Size:  74.5 KBName:  IMG_8093.jpg
Views: 178
Size:  147.6 KBName:  IMG_8092.jpg
Views: 183
Size:  76.6 KB

    Any help or info would be appreciated.

    Thanks all.

  2. #2
    Join Date
    Jun 2012
    Location
    Bemidji MN
    Posts
    12,964

    Re: Twentieth Century Welder Help

    In my opinion, not much to know except choose the lowest amp range that has the welding current needed for your rod size and weld happy

    With the high output that thing has, it's likely very robust compared to a cheaper smaller machine.

    6011, 6013 and 7014 will run very nice on it. Some people like 7018AC rods too. (note, it will say AC on the rod)

    6010 is a DC only rod, so don't get those.
    7018 without the AC written on them will be hard to run on it, run better on DC.
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Airco 300 - Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  3. #3
    Join Date
    Nov 2005
    Location
    Nashville, TN
    Posts
    2,950

    Re: Twentieth Century Welder Help

    I had a 295 amp welder by them. Nice welder. All the wider info is on the machine. Keep as is, don't clean the faceplate. I cleaned mine and it faded.

    I believe there was history info on youtube. Salesman showed farmers how to tap directly into the electrical pole.

  4. #4
    Join Date
    Jun 2012
    Location
    Bemidji MN
    Posts
    12,964

    Re: Twentieth Century Welder Help

    Quote Originally Posted by tapwelder View Post
    I had a 295 amp welder by them. Nice welder. All the wider info is on the machine. Keep as is, don't clean the faceplate. I cleaned mine and it faded.

    I believe there was history info on youtube. Salesman showed farmers how to tap directly into the electrical pole.
    I saw some history on Forney salesmen doing that too - imagine the uproar if I went and tapped into my power pole now days
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Airco 300 - Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  5. #5
    Join Date
    Jun 2017
    Location
    AJO, ARIZONA
    Posts
    217

    Re: Twentieth Century Welder Help

    The shape of the housing's corners looks like my Mid States 300 Amp.
    NRA LIFE MEMBER
    UNITWELD 175 AMP 3 IN1 DC MIG/STICK/TIG
    MIDSTATES 300 AMP AC MACHINE 100% DUTY CYCLE
    DAD SAYS, "IF YA AIN'T GONNA USE YOUR HEAD, YOU BOUT AS WELL HAVE TWO A$$HOLES."
    GOD BLESS AMERICA!

  6. #6
    Join Date
    Apr 2018
    Location
    Twin Cities, MN
    Posts
    2

    Re: Twentieth Century Welder Help

    Thanks for all the quick replies and info! I will have to look for that youtube video, sounds pretty interesting

    I will probably start with some 7014 to learn with, it sounds like its easier than the 6011 to start with.

    Thanks again for the help.

  7. #7
    Join Date
    Jun 2012
    Location
    Bemidji MN
    Posts
    12,964

    Re: Twentieth Century Welder Help

    7014 is a nice smooth running rod. Easy restarts too. I think you'll like it.

    On AC, I like to run 1/8" 7014 about 130-140 amps (but they will run on lower amps too).

    If you have to use a long arc to keep them lit, the amps are too low. They should run very well even if the edge of the flux is lightly touching the metal or turn up the amps - in my opinion.

    General rule of thumb for rod selection. Don't use a rod that is thicker than the metal to be welded.
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Airco 300 - Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  8. #8
    Join Date
    Jun 2011
    Location
    Aiken SC area
    Posts
    1,019

    Re: Twentieth Century Welder Help

    Very nice welder. You may find an wiring schematic glued on one of the inside covers. The pins look fairly clean so does not look as if it was heavily used. Lots of output, and I like the crank to get you just the right amount of output. Bob

  9. #9
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    4,472

    Re: Twentieth Century Welder Help

    I have the 295 amp version, I'd guess it to be a bit more modern than yours. I bought mine new in 1974. Twentieth Century had a salesman who travelled around doing shows. I was the kid in the crowd he coached me through the welds. It was amazing how well it performed that night. I would use low, or mid voltage. 6011 is a great rod for this machine, but does give a lot of spatter. 6013 was a good filler to use. I had little success with 7018AC, but I suspect it may have been improperly stored.

    The stick welder I use now is the same age, but DC version. It is beat to Hell, all rusted out, but welds fine.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  10. #10
    Join Date
    Nov 2005
    Location
    Nashville, TN
    Posts
    2,950

    Re: Twentieth Century Welder Help

    It was probably a Fourney video, as Dave pointed out.

  11. #11
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    4,472

    Re: Twentieth Century Welder Help

    We didn't have anybody showing you how to steal power, but plenty of old timers felt it was OK if you were stealing from those who could afford it.

    The local farm supply went through 4 generations before a financial collapse. The second generation was the one who personally welded many tons of stolen railroad rail for structural function. He made hundreds of I beams by welding rail top to top. It holds up the buildings to this day. His son taught me to cut rail.

    As the story goes he was welding one day when the meter reader arrived. No difference was observed when he stopped. The meter reader investigated, to find the welder wired at the weather head, upstream of the meter. I don't know how it was resolved, but I'd bet no penalty was levied. Some people are exempt from laws that govern the middle class. The wealthiest in a very small town would in that day be excused as eccentric.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  12. #12
    Join Date
    Jun 2014
    Location
    Southern Illinois
    Posts
    368

    Re: Twentieth Century Welder Help

    I've got a Twentieth Century I bought at a auction because it had a pile of new 1/0 lead with it. I have it on Craigslist for sale. I cleaned it out and welded with it. I was surprised how well it ran 7014 and the continuous adjustment is great compared to tapped machines like the 225 buzz boxes. Twentieth Century changed their name to just Century and some point. They were bought out by Lincoln Electric in later years. Here is mine, and I had no luck finding manuals either



    Sent from my iPad using Tapatalk
    Steve

    Miller Dialarc 250 (1990)
    Miller Maxstar 140 STR (2003)
    Lincoln SA200 Redface Pipeliner (1966)
    Lincoln MP210 (2015)
    Victor and MECO torches

  13. #13
    Join Date
    Jun 2012
    Location
    Bemidji MN
    Posts
    12,964

    Re: Twentieth Century Welder Help

    Quote Originally Posted by Sparkie1957 View Post
    I've got a Twentieth Century I bought at a auction because it had a pile of new 1/0 lead with it. I have it on Craigslist for sale. I cleaned it out and welded with it. I was surprised how well it ran 7014 and the continuous adjustment is great compared to tapped machines like the 225 buzz boxes. Twentieth Century changed their name to just Century and some point. They were bought out by Lincoln Electric in later years. Here is mine, and I had no luck finding manuals either



    Sent from my iPad using Tapatalk
    Holy crap - 20% duty cycle at 250 amps

    That old beastie will weld forever at 125 to 150 amps
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Airco 300 - Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  14. #14
    Join Date
    Jun 2014
    Location
    Southern Illinois
    Posts
    368

    Re: Twentieth Century Welder Help

    Quote Originally Posted by MinnesotaDave View Post
    Holy crap - 20% duty cycle at 250 amps

    That old beastie will weld forever at 125 to 150 amps
    The moveable shunt in them is Mickey Mouse with a cable and pulley system to operate it, but it works. Mine was frozen up put with some penetrating oil I got it going


    Sent from my iPad using Tapatalk
    Steve

    Miller Dialarc 250 (1990)
    Miller Maxstar 140 STR (2003)
    Lincoln SA200 Redface Pipeliner (1966)
    Lincoln MP210 (2015)
    Victor and MECO torches

  15. #15
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    4,472

    Re: Twentieth Century Welder Help

    Quote Originally Posted by MinnesotaDave View Post
    Holy crap - 20% duty cycle at 250 amps

    That old beastie will weld forever at 125 to 150 amps
    Mine looked a bit different, but was rated as 100% duty cycle. It runs 5/32 6011 all day no problem, and has thawed plenty of frozen underground water lines.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  16. #16
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    4,472

    Re: Twentieth Century Welder Help

    I found another thread. It had lots of pictures, but they are gone Questions about old Twentieth-Century stick welder -- help, please
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
RSS | Home | Penton Media | Contact Us | Subscribe | For Advertisers | Terms of Use | Privacy Statement