Regulating hand plasma air supply

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So I got a Lincoln Tomahawk 625. Getting everything set up....I have a regulator/filter/dryer combo coming off the compressor. I’ve attached necessary manual pages below...this is what I gather...1) Air coming into the back of the machine, should not exceed 110 psi2) I use the regulator on the machine to get to 75-80 psi for cutting3) 1 and 2 mean that if I want to run over 110 psi on my shop air for other tools to use concurrently with plasma (eg. 90° die grinder for dross cleanup), I’m gonna need a second regulator dedicated to the plasma line, so I don’t have to keep adjusting main regulator?


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Reply:You will find that most air tools say 90psi max. I keep my secondary regulator at 90 and adjust as needed.
Reply:

Originally Posted by Laggy

So I got a Lincoln Tomahawk 625. Getting everything set up....I have a regulator/filter/dryer combo coming off the compressor. I’ve attached necessary manual pages below...this is what I gather...1) Air coming into the back of the machine, should not exceed 110 psi2) I use the regulator on the machine to get to 75-80 psi for cutting3) 1 and 2 mean that if I want to run over 110 psi on my shop air for other tools to use concurrently with plasma (eg. 90° die grinder for dross cleanup), I’m gonna need a second regulator dedicated to the plasma line, so I don’t have to keep adjusting main regulator?



Reply:I think I’m gonna keep it simple cause I’m stupid. I’m never really going much above 90psi. Not looking to just throw money in the trash these days even if it’s on a $20 regulator. Thanks for responses.
Reply:I don't think it's a waste if you get a filter/regulator because what you really need is "clean" regulated air, especially when it concerns water vapor. Depending on the length of your hoses and size, your regulated line may not be the same pressure at the machine as the regulator, a regulator at the machine fixes that. All my shop air is regulated, filtered and has water reduction methods built in, but my plasma still has the regulator/filter on the back.250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
Reply:If you keep your air at 90 coming off the compressor, it should have an easy time running 75 at the plasma cutter.  I never have air starvation issues with mine.  Just a simple 80gal compressor.
Reply:I would put a dedicated water separator on anything to do with a plasma torch. Something like this or similar.https://www.tenaquip.com/product/mot...4aAhNLEALw_wcB
Reply:This is what I use on my CNC plasma table to dry the incoming air,  I reverse the flow and fill it with silica gel.  There is a kitty liter that is silica gel for a cheap filling.https://www.lowes.com/pd/A-O-Smith-A...tem/1000576415similar to how I do it. but I have a bigger dryer.this one shows the larger filter I use for the plasma.

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