If you mean the HG 500 plasma, don't waste your money. A friend has a Sip plasma, different model, cost him over £1000 & it struggles to cut 6mm steel. From what I can see it is a rebadged Chinese unit with a very hefty price tag just for the Sip name.
He has used my cheap Lidl plasma costing around £100 & it knocks spots off his unit, I have cut 16mm steel with it!
For that sort of money there are much better units out there, IFL & Rtech come to mind. You should have a read through the posts in this section & you'll see that most questions have been asked before, there's also a search function on this site.