We intent to buy a plasma cutter, rated at 30A.
We should also buy compressor, but I am a bit unsure about its performance.
Is compressor 3hp, 130-150 l/min, tank=50 litar, oil lubricated..., quite enough?
Of course with additional air purification group.
Plasma only need reg set to around 60psi. Any more and it'll get messy. I was using a little 6L nail gun hobby compressor. Kicks in fairly regular but still manages fine. Out of preference if you don't need a biggie, I'd go for a 24 or 50L 2hp hobbies. Cheap enough.
I have a cut40 plasma cutter, I have a little £99 2 hp 7cfm with around 5 cfm fad and that works the plasma cutter no problems. it only needs to run about 50-60% of the time I am cutting so not too bad.