Air Compressor Sizing for Plasma Cutter

[DaveOmak]

arrabil, Good afternoon. I have a Hypertherm 350 plasma. It uses 60 PSI @ ???cfm regulated on the plasma. I added a 30 gallon tank in the line for extra stored air capacity because my compressor was too small. The dry/clean air supply is obtained using a "motor guard" filter. It is a toilet paper roll in a canister. Filters dirt and water very well. Install ahead of the plasma. The 30 gal tank gives me more than enough "air time". I also had an old transmission oil cooler that I installed between the compressor and the storage tank and a "condensate jar with drain" between the cooler and the tank to help remove the condensate. The system works very well. Hope that info helps. Dave

 

[arrabil]

Hope that info helps.

It does... it reinforces that you either find a way to get more air to the cutter or you buy the right size compressor. They obviously mean what they say in the manual...

I like the filter a lot! I'm getting an industrial one as part of the deal but I like your idea on the cheap!