gas/gasless welder weirdness

[chunkolini]

I borrowd a friends welder over the weekend for one of my sculpture workshops, so we could have two welders on the go, cant remember the make, but it is a 240 volt 180 amp welder that takes 15kg reels of wire. It has 'Gas/Gasless' on the side. it had a cyclinder of Argoshield on it.
Copmpared to my 180amp Butters welder it seemed very 'fierce in use, lots of spatter and was very noisy, not nice for novices.
I changed the torch to a new one and it made hardly any difference, so not the liner.
I wondered if it might be a polarity issue, dim memories from probably this forum about changed polarity for the two options. The gal who own it has of course lost the manual and never read it. Says 'Oh it always does that' and commented on how quiet my welder was in comparison.
Here is a photo of the inside.

The labels are to say the least a bit vague.
Is it wired up the right way round? presuming these are the leads that get changed.

 

[Robotstar5]

Yes it's wired correctly for gas use.

 

[chunkolini]

Okey dokey, that's that out of the way.
Whey else might it be so 'fierce'. If it helps I will get a photo of it in a day or two.

 

[mike 109444]

Could be that yours has better smoothing of the DC output (capacitor/inductor) Does your Butters have a large (size of a bakebean can) or a bank of medium sized (can't think of any comparison so 1 1/2" dia by 3" ish)?

 

[chunkolini]

Que??
No idea, it is a very smooth welder to use, and especially at low power.
A lucky buy.
Did as I was told.

 

[Drains]

It sounds like an inductance issue. More inductance is required at the higher voltage ranges whilst in short circuit transfer. It helps smooth the arc and wet the weld etc. Larger welders often have adjustable inductance or a choice of connectors for low or high inductance. Smaller ones tend to be preset. I doubt you can adjust it if there's no obvious setting adjustment etc. Just have to put up with the spattering!

You can also mess about with the voltage/wire speed settings to try and minimise it, but it'll always be a struggle, probably.

 

[chunkolini]

That sounds like the case, mine was a bit pricier, hers looks and feels like a built down to a budget thing. Does the job adequetly but not nicely.