It just so happens I was looking at compressors yesterday, as I've just ordered a vacuum table for the mill, and can't bear the thought of listening to the 3hp combined motor/pump rattling away much more. Plus it's now got that much piston leakage it blows the dipstick out once it reaches about 7 bar

I was searching to see if you can get smaller screw compressors that run on single phase, which you can, however you'll need to at least add an extra zero onto the price of the one you've listed, for a 2.2KW one.

It all depends on how much air you require.
I still need to find a suitable calculator to see just how big a compressor I'll need, but I've not got that far yet.


I'm also considering rigging a hydrovane into the existing compressor tank, as I have a 1.5hp tankless one buried somewhere, but not sure if it'll provide enough air.