Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

"Jud" wrote in message
...
Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

If you plug the welder directly into the generator a 20 amp 120 volt outlet
will run a SP100 for light welding.
Steve

On Mon, 12 Oct 2009 09:43:51 -0700 (PDT), Jud
wrote:

Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

My SP-100 works fine on a Honda 2500 watt genny

Gunner

"Lenin called them "useful idiots," those people living in
liberal democracies who by giving moral and material support
to a totalitarian ideology in effect were braiding the rope that
would hang them. Why people who enjoyed freedom and prosperity worked
passionately to destroy both is a fascinating question, one still with us
today. Now the useful idiots can be found in the chorus of appeasement,
reflexive anti-Americanism, and sentimental idealism trying to inhibit
the necessary responses to another freedom-hating ideology, radical Islam"

Bruce C. Thornton, a professor of Classics at American University of Cal State Fresno

"Jud" wrote in message
...
Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

AMPS X VOLTS = WATTS. Add a 30% safety margin and you should be able to run
its duty cycle.

A 2600 watt generator would not be adequate for full duty cycle in my
opinion, but a 3500 should handle it all day long.

Jud wrote:
Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

I'm not sure about the sp100t, but some inverters (MIG power supplies)
can be sensitive to voltage spikes, sags, etc. I had to replace a
varistor on my PowCon after it was loaned for some generator-powered
field work.

On Mon, 12 Oct 2009 16:14:48 -0700, Jeff wrote:

Jud wrote:
Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

I'm not sure about the sp100t, but some inverters (MIG power supplies)
can be sensitive to voltage spikes, sags, etc. I had to replace a
varistor on my PowCon after it was loaned for some generator-powered
field work.

The little Lincoln SP MIG boxes aren't inverters.

On Mon, 12 Oct 2009 14:44:07 -0700, "Bob La Londe"
wrote:

"Jud" wrote in message
...
Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

AMPS X VOLTS = WATTS. Add a 30% safety margin and you should be able to run
its duty cycle.

A 2600 watt generator would not be adequate for full duty cycle in my
opinion, but a 3500 should handle it all day long.

The welder itself is limited to 10% or 15% duty cycle at max output.

ha ha SP130 was too powerful , so they retagged it

SP170 ...


Lincoln SP130 had a much higher output than the [130]
should have .


but i bought Century for the dynamic voltage control .
this is needed for stitching and spot with MIG .

Some old MIG use input side relays to shut off a stitch ,

L-Tec MIG used 2 opposite SCR's , good Green Box .

But Hobart 250 did it wrong placing huge SCR in a Diode
bridge at high amps side . STUPID .

Thanks all. That's why this place is great - asked a question, got
good info, and learned a bunch of other stuff in the process.

appreciate you all.

On Tue, 13 Oct 2009 00:27:33 -0500, Don Foreman
wrote:

On Mon, 12 Oct 2009 14:44:07 -0700, "Bob La Londe"
wrote:

"Jud" wrote in message
...
Hi all - I haven't been here in a long time, but remember this to be
one of the most knowledgeable groups about all things metal...

I need to be able to power a small MIG welder (Lincoln SP-100T) with a
generator, but don't know enough about voltage, watts, etc to know
what size I need. It won't be continuous use, mostly spot welds or
joints that would require no more than 60 seconds of welding. This is
for an on-site found object metal sculpture.

Any help is greatly appreciated.

- Jud Turner

AMPS X VOLTS = WATTS. Add a 30% safety margin and you should be able to run
its duty cycle.

A 2600 watt generator would not be adequate for full duty cycle in my
opinion, but a 3500 should handle it all day long.

The welder itself is limited to 10% or 15% duty cycle at max output.


Correct.


"Lenin called them "useful idiots," those people living in
liberal democracies who by giving moral and material support
to a totalitarian ideology in effect were braiding the rope that
would hang them. Why people who enjoyed freedom and prosperity worked
passionately to destroy both is a fascinating question, one still with us
today. Now the useful idiots can be found in the chorus of appeasement,
reflexive anti-Americanism, and sentimental idealism trying to inhibit
the necessary responses to another freedom-hating ideology, radical Islam"

Bruce C. Thornton, a professor of Classics at American University of Cal State Fresno