Lincoln 225 AC/DC

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I am trying to find an old lincoln 225 ac/dc for sale online. I noticed that the duty cycle on one that i was looking at was only 20%. From what I've heard these welders are solid because there is nothing in them to go wrong, but what if the duty cycle is surpassed? I'm thinking that maybe the machine would just automatically shut off once reached a certain temperature. Not sure about that though, anyone out there know if that is for sure or not?
Reply:I have never reached a machines duty cycle. A 20% duty is 2 min out of 10 min that a machine can run giving It's optimal power. 2 min May seem like a little time but when you weld it does not take more then 30 sec to finish one complete rod. And that's even if you need to run a bead that long.  You have to take into mind what type of metal you are using what type of weld It's going to be. What are you planing to weld with the 225.
Reply:I believe the DC side is thermal protected, but the AC side isn't.  I might be totally wrong"Any day above ground is a good day"http://www.farmersamm.com/
Reply:Not a Lincoln but I did have my Miller 211 shut down due to overheating recently.   But I was doing 4 feet of welds on 4x4x1/4 tube to a 5/16" plate.   It was no big deal to take a break at that point in time.Ken
Reply:Originally Posted by k45Not a Lincoln but I did have my Miller 211 shut down due to overheating recently.   But I was doing 4 feet of welds on 4x4x1/4 tube to a 5/16" plate.   It was no big deal to take a break at that point in time.Ken
Reply:Well I was making an adapter for my 3 pt Woods scraper blade to the skid steer.   Yes, big (heavy welding) project.  Because of fear of warping the ss plate, I was only doing 3-4 inch stitch welds, but a bunch of them. It was a big job    There were four 4' long welds on that.I've only gotten to give it a short trial but it seems to work well.  Just after I finished the project a couple of weeks ago,  it started raining and has been too muddy to really test it. But it is strong enough to lift the skid steer off of the ground.When you are mostly working on farm and construction equipment (my primary interest), big heavy welds are the rule.Last edited by k45; 05-28-2012 at 07:25 PM.
Reply:Originally Posted by k45Well I was making an adapter for my 3 pt Woods scraper blade to the skid steer.   Yes, big (heavy welding) project.  Because of fear of warping the ss plate, I was only doing 3-4 inch stitch welds, but a bunch of them. It was a big job    There were four 4' long welds on that.I've only gotten to give it a short trial but it seems to work well.  Just after I finished the project a couple of weeks ago,  it started raining and has been too muddy to really test it. But it is strong enough to lift the skid steer off of the ground.When you are mostly working on farm and construction equipment (my primary interest), big heavy welds are the rule.
Reply:You're right about the Lincoln buzz boxes beIng pretty much bullet proof.  I agree with what angel85lx said about an electrode and duty cycle.  I doubt you'll reach the machine's limits for home use. After each rod, take a breather.  (beer sipp'n break) .  You could actually run several rods before having to stop to let the box cool down.  In fact today, I made nine umbrella stand bases for patio furniture.  I used those 3/4" thick railroad tie plates that weigh about 30lbs each.  I welded 2" diameter pipe using my buzz box and 7018's.  I only paused to change out rods and to drink beer in between.  The outside ambient temp today was 91*F.  My buzz box was in direct sunlight.   It never gave up the ghost and kept weldLincoln Power Mig 216Lincoln AC/DC-225/125Miller  625 X-Treme PlasmaMiller 211 Forney 95FI-A 301HF 91110Victor Journeyman O/PMilwaukee DaytonMakita  Baileigh NRA Life Member
Reply:You're right about the Lincoln buzz boxes beIng pretty much bullet proof.  I agree with what angel85lx said about an electrode and duty cycle.  I doubt you'll reach the machine's limits for home use. After each rod, take a breather.  (beer sipp'n break) .  You could actually run several rods before having to stop to let the box cool down.  In fact today, I made nine umbrella stand bases for patio furniture.  I used those 3/4" thick railroad tie plates that weigh about 30lbs each.  I welded 2" diameter pipe using my buzz box and 7018's.  I only paused to change out rods and to drink beer in between.  The outside ambient temp today was 91*F.  My buzz box was in direct sunlight.   It never gave up the ghost and kept welding.  Those Lincoln buzz boxes are the "Energizer bunnies" of stick welders.  They just keep going and going and going.Lincoln Power Mig 216Lincoln AC/DC-225/125Miller  625 X-Treme PlasmaMiller 211 Forney 95FI-A 301HF 91110Victor Journeyman O/PMilwaukee DaytonMakita  Baileigh NRA Life Member
Reply:Originally Posted by farmersammI believe the DC side is thermal protected, but the AC side isn't.  I might be totally wrong