An answer to a question I asked over in rec.crafts.metalworking got me curious as to just how dry the air feeding a plasma cutter really needs to be. The suggestion of what was required sounded overkill in comparison to the successful setups I have seen around my location, but then I do live in a less humid area than some folks and so that might make a difference. Just how much cooling and drying of the input air is required, and at what stages in the compression cycle (i.e. pre/post compressing)? I'm sure this varies by geographic location, and would be much different if I lived in, say, Louisiana instead of Southern California, but is there some basic guideline that can be followed in terms of humidity percentages? Personal experience with particular real world setups would be most appreciated. Thanks!
- posted
20 years ago