The best welding inverter which will stand cattle station generator fluctuation?

Submitted: Friday, Jul 26, 2002 at 00:00
ThreadID: 1581 Views:10347 Replies:4 FollowUps:3
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For my next 4WD trip around the Gulf, I'll get a portable welder (inverter) to plug on any type of single phase , 240 volts generator.
I am trying to choose the best welding inverter for the job.
I am looking at welding WELDALL 3.25mm sticks or Stainless stick 4 mm and General Purpose 6112.
The main concern when plugging into a cattle station generator are the propable fluctuation of the genrator.
This fluctuation may harm the electronic board of the welding inverter.
I have looked at internal cooling fan, duty cycle 100 % at 120 amps and 50% at 140 amps,
multivoltage to detect the slowing down of a generator, minimum input to be used on the domestic grid as well.
I have to choose between BOC 140, WIA Induro 145, Selco Genesis 1500, Lincolnv140-s, Cig 131s and Powermax2 from Eutectic.
What would you recommend? and would this portable welder stand my application?
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Reply By: alreadytaken - Saturday, Jul 27, 2002 at 00:00

Saturday, Jul 27, 2002 at 00:00
why do you need an inverter? most, if not all gensets these days are ac so your average welder should run off a 3.6kva genset ok(depending on its duty cycle of course). 2.5 rods should suffice for most auto jobs I'dve thought.......stainless?
AnswerID: 5185

Follow Up By: Frank - Saturday, Jul 27, 2002 at 00:00

Saturday, Jul 27, 2002 at 00:00
Alreadytaken if you check what a "inverter welder" is, you'll see how compact and efficient they are. Most of "inverter welder" weld DC sticks, excellent arc burning compensation to 3.25 mm. Nothing to do with 12 volts inverters. Toatally different product. Guy
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FollowupID: 2214

Reply By: mike - Saturday, Jul 27, 2002 at 00:00

Saturday, Jul 27, 2002 at 00:00
I've been useing a hobart 140amp inverter welder off of a 8kva genset on my service vehicle for about 3 years with no problems. however I mostly use 2.5 low hyd rods & sometimes 3.25. Stainless will be no problem but I question 4mm rods of any type to be ran from a remote power source. NB 3.25mm 6112's takesb all of 8kva to run. Good Luck.
AnswerID: 5189

Follow Up By: Frank - Saturday, Jul 27, 2002 at 00:00

Saturday, Jul 27, 2002 at 00:00
Mike, I never heard of an "Hobart" inverter welder. Where did you buy it? The new BOC 140 is suppose to run 4 mm sticks from only a 3.5 KVA and it has cut off protection. I found all these information strange. That's why I try to check it out. I have seen the Power Max2 from Eutecnic burning 3 sticks 4 mm diameter.
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FollowupID: 2215

Reply By: Peter - Monday, Jul 29, 2002 at 00:00

Monday, Jul 29, 2002 at 00:00
Frank,
My Dad fitted an alternator on his vehicle that would weld anything that he required.
It was almost the same size as the standard alternator, and provided a 240 VAC output socket.
AnswerID: 5217

Reply By: MIKE - Sunday, Aug 04, 2002 at 00:00

Sunday, Aug 04, 2002 at 00:00
A company called AWISCO in Brisbane used to sell Hobart Welders, BOC gases has now taken it over. I believe that a Miller brand is very similar to Hobart. From my experience all of the dearer welders are about the same.I believe that the problem of useing generators to run these welders is more the user overloading the geni resulting in a rpm drop & resultant voltage drop which fries the circuit board in the welder.
Good luck up the Gulf.
AnswerID: 5391

Follow Up By: Frank - Sunday, Aug 04, 2002 at 00:00

Sunday, Aug 04, 2002 at 00:00
Mike, thanks for this important info. I've asked about the Inverter Welder slowing the generator down and every salesperson told me" No, it is NOT possible". But I was told in the bush that actually generators will slow down during welding specially on 4 mm stick. Now I understand what it means. Depending on the type of welder you are, you can upset the genrartot so much that it will slow down and having more chance of frying the Printed Board. A drop in the geni will transfer itself in a drop of out put but also of frequency below 50 Hz. Great information which allows me to understand better what may happen.
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FollowupID: 2327

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