View Full Version : Is this welder strong enough??
hexbinary
09-13-2008, 06:08 PM
Hi
totally new to welding/go kart building
I found this welder used at a good price and we wondering if the 70amp was strong enough for welding the go kart fame (thinking of the Dirt Devil).
http://www.chpower.com/webapp/wcs/stores/servlet/chPrd3_10051_10001_100001_-1_10681_10765_
I have another option of buying a 15 year old used stick welder which outputs 220amp. I hear that Mig is better/easier through, and I can't find any others for pretty cheap.
Any guidance is much appreciated.
Thanks
Kenny_McCormic
09-13-2008, 07:56 PM
70amp wont cut it for a full scratch build, go for the big stick welder, with the correct rod they are easy to use.
modelengineer
09-13-2008, 11:26 PM
"I hear that Mig is better/easier through"
Easier, yes. Better...
Get the stick welder and practice, practice, practice.
hexbinary
09-14-2008, 03:02 PM
have to wait for something better to come along. I only have 230v/40a in my garage, and that welder is 50a
Kenny_McCormic
09-14-2008, 03:03 PM
That just means you cant quite weld at full power, keep it under 175amps and you will be fine. Worst case it will just throw a breaker. You could have an electrician check out your wiring and see if a 50 amp could be installed.
fluxcored
09-15-2008, 02:30 AM
40A should be plenty strong. I'm running a 30A breaker in my garage and never had problems - the max that I weld at is around 180A tho.
But I suggest you follow Kenny's advice and try to get a 50A breaker installed coz I think if the rod sticks to the weld pool - happened often to me when I started out - it draws much more current and may cause the breaker to trip.
oscaryu1
09-15-2008, 09:41 AM
I have a welder rated on the box 120V @ 24A or something like that. I've done it on MAX and 10 for a few seconds no problem.
15A breaker.
Kenny_McCormic
09-15-2008, 01:36 PM
40A should be plenty strong. I'm running a 30A breaker in my garage and never had problems - the max that I weld at is around 180A tho.
But I suggest you follow Kenny's advice and try to get a 50A breaker installed coz I think if the rod sticks to the weld pool - happened often to me when I started out - it draws much more current and may cause the breaker to trip.
7014 rod helps A LOT with sticking because it automatically maintains proper arc length.
hexbinary
09-19-2008, 01:57 PM
I managed to pick up a LincWeld 225. I had to rewire my receptacle because it was a 4 wire one, otherwise things look good, and i'm hoping to do my first weld ever tonight
hexbinary
09-19-2008, 03:13 PM
http://i463.photobucket.com/albums/qq357/hexbinary/stuff/imgp2604.jpg
http://i463.photobucket.com/albums/qq357/hexbinary/stuff/imgp2605.jpg
fluxcored
09-23-2008, 04:46 AM
Looks like a very capable machine you've got there. Congrats!
Kenny_McCormic
09-23-2008, 03:00 PM
A welder like that is **** near indestructible, follow the duty cycle and it will outlive you.
kibble
09-23-2008, 09:05 PM
Nice welder! :thumbsup:
Scout
12-05-2008, 08:40 PM
40A should be plenty strong. I'm running a 30A breaker in my garage and never had problems - the max that I weld at is around 180A tho.
But I suggest you follow Kenny's advice and try to get a 50A breaker installed coz I think if the rod sticks to the weld pool - happened often to me when I started out - it draws much more current and may cause the breaker to trip.
Don't swap in a higher amp breaker. The breaker was chosen for the capacity of the circuit and trying to use more capacity can cause the wiring to overheat and start a fire.
I am welding a kart back together and my welder is on a 30 amp breaker. Max amp draw is 45a and even though I have shorted it I have yet to pop the breaker. It's a 225a Miller Thunderbolt.
fluxcored
12-08-2008, 04:58 AM
The breaker was chosen for the capacity of the circuit and trying to use more capacity can cause the wiring to overheat and start a fire.
Scout - you're right of course. I always upgrade the wiring as well.
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