Used ~200amp plasma power sources?

[DennisCNC]

I have looking on google for a few weeks and only found two machinery dealers that had a 200 amp plasma power sources for sale, any one stumble across other used power sources in the 200 to 300 amp range?

Thanks

[Weldtutor]

200 amp plasma power sources for sale

A 200 amp plasma arc cutting power source certainly is unusually large.

Perhaps you are confusing this with some of the multi purpose machines that have a welding output of 200 amps, with plasma arc cutting amperage output quite a bit lower.

Often this is in the 20 to 40 amp range for plasma.

[DennisCNC]

I need a plasma power source that will cut 1" at 100% duty and pierce 2" steel from edge.

A thermal dynamics unit is ~$19,000 with a torch. I just what to see if a used one is available for less.

[xjdubber]

[QUOTE=Weldtutor;387083]A 200 amp plasma arc cutting power source certainly is unusually large.
[QUOTE]


unusual??

200A and up plasma's are hard to come by, they dont usually leave the machine that they are coupled to.

You could also include an HPR 130 in your search they are capable of cutting 1" at 100% duty cycle

edit: just saw that you wanted to edge pierce 1" HPR-260 then (yes im hypertherm biased)

[JBurgess]

Dennis,

Hypertherm 200 amp plasmas will do what you need. This is my experience with them:

The first was a MAX 200, but the electrode life was poor 100 to 200 starts.

The other was a HT 2000 had good electrode life about 1000 starts per electrode.

Both machines used the same torch head, but the HT 2000 started the arc in a "friendly" environment.

The chopper units in them do not tolerate phase imbalance well, best if you can power them with a full delta or Y from the utility rather than an open delta.

[DennisCNC]

^^Thanks for the info, I was just looking at a Max 200.

[DennisCNC]

If you have a 200 amp machine that you want to sell let me know or if you know of one for sale.

Thanks

[jimcolt]

Dennis,

If you contact the Hypertherm Rep (I think he lives in Gainsville area) he may be able to help you find a used Max200. His name is Robin Chandler...... robin.chandler@hypertherm.com

Jim Colt

[DennisCNC]

Patience has paid off, got a Thermal Arc 500 amp power source with everything included. Will be here monday. The thing weighs 2000lb and will cut 2" steel at 30IPM and pulls 360A at 230v 3 phase.

[jimcolt]

Last I knew....the TAC500 was designed for use with nitrogen as the plasma gas and carbon dioxide as the shield gas. This gas combination will not do a good job on steel. Anything over about 3/4" will normally have heavy dross and a nitrided edge. This machine does a great job on stainless and aluminum.

You need to use either air or oxygen as the plasma gas to get decent cuts on carbon steel.

It may be possible to retrofit the system (or maybe it has been retrofitted) with a more modern torch and gas flow control that can handle air or oxygen.

Jim

[DennisCNC]

This machine was used to cut 1 3/4" steel circles. Here is pic of it over all. On top is the cooler and wires:


The transformer in the power supply is huge! The diodes have wires 5/8" thick coming out of them.


And here is the torch:

[xjdubber]

wow thats quite the machine, show us some samples when you get it up and going!