CNC plasma cutter options

[Muzzer]

That connector is actually a German "Schuko" Type F plug which is rated at 16A - it's not a US plug as you believe you were told.

Our UK plugs are massively overdesigned and won't break a sweat at 13A or even 16A if you buy a decent brand and of course the ring main behind the socket will be fine supplying 30A. However, your plasma cutter will only have a limited duty cycle anyway and even that will be specified at full power. Bottom line, Just put a decent quality 13A plug on it and be done. The fuse won't blow unless you subject it to over 30A continuous.

Those airline fittings are almost certainly "Euro" (aka XF) style ones, like you get on Lidl gear - I have quite a few of them in my workshop as a result. I swapped some of them for the more normal "UK Standard Adaptor" (aka PCL) fittings found on our air tools but the thread at the rear was the same, presumably 1/4" BSP or similar. You could probably just unscrew the XF and replace with a PCL.

I'm pretty certain you've got a German spec machine there....

AliExpress is offering me this for £265 all in, inc delivery to the UK. Only one left currently but I'm not looking to buy.