The Powermax 30 air has an internal compressor and weighs just south of 14 kilos, making it a highly portable maintenance tool. All you need to start cutting is some power, then plug & play! It has a flexible power input capability, connecting to 110 or 240 volt and you can even run it from a generator.
The Powermax 30 XP is more affordable and still connects to all single phase power, but you will need compressed air capability of 113.3 l/min (4 scfm) at 5.5 bar (80 psi). Both models will sever 16mm mild steel.
Hypertherm's Powermax 45XP is the world's best selling plasma cutter and it's easy to see why. With a change of front end consumables to you can switch between cutting(up to 29mm), gouging and marking. It's light, portable & available in 240 or 415 volts. It can be run on 16 (giving you reduced capacity) or 32 amps and is generator friendly.