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Tool Talk Discussion Forum

Air Tools...Max. PSI

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Glenn FitzGeral

03-08-2008 16:51:17




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I am gradually acquiring more and more air tools...drills, grinders, etc. The ones I've bought recently have 90 PSI max. In the past I have never paid any attention to the 90 PSI rating, and just used them freely with my compressors shutting off at 160. I am however, very dilligent in oiling them.

I run lower pressure with my body sanders (DA, board file, etc). Should I be staying at 90 with the grinders? I have not had any problems with the ones I've been using at 160 for years, but are the new ones more sensitive? My old ones may well be rated at 90 also.

This is only a hobby shop, so tools are not used daily, but when I do use them, it may be for hours of steady operation.

I like taking good care of my tools. Any advice for me?


Thank you,
Glenn F.

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Kentb of SWMO

03-09-2008 13:47:03




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 Re: Air Tools...Max. PSI in reply to Glenn FitzGerald, 03-08-2008 16:51:17  
90 psi is the max pressure allowed in an industrial setting by OSHA. That is why the tools are rated at 90 psi.

Kent



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IA Roy

03-08-2008 18:47:30




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 Re: Air Tools...Max. PSI in reply to Glenn FitzGerald, 03-08-2008 16:51:17  

If your system is set for a higher pressure, it does not mean that you are getting that much in use. If your hose or piping is too long and too small you may be getting a lot less when you are working with the tool. The best thing that you could do is get a regulator for getting it down to the correct pressure as close as you can comfortably get to the tool. If you want to know what you are getting now, put a tee in the line next to the tool with a gauge in it and see what your pressure is with the trigger pulled.

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circus

03-08-2008 18:27:58




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 Re: Air Tools...Max. PSI in reply to Glenn FitzGerald, 03-08-2008 16:51:17  
Considering the amount consumed by the tool the pressure at the tool often is much lower than at the compressor.



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Charles (in GA)

03-08-2008 17:45:48




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 Re: Air Tools...Max. PSI in reply to Glenn FitzGerald, 03-08-2008 16:51:17  
Might overspeed a wheel and blow it up. No sense in running the tools above their design pressure (at the inlet, you can expect some loss in the hose).

Virtually all air tools are designed for 90 to 100 psi inlet pressure.

Charles



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Joe Pro

03-08-2008 17:06:21




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 Re: Air Tools...Max. PSI in reply to Glenn FitzGerald, 03-08-2008 16:51:17  
If I were you I would run them at recomended presure, Older tools are higher quality than these new tools, I got a new Bostitch brad nailer it says use at 100 psi or something like that I would never put 150 to it or it would probably blow up it is about about as heavy as a feather, Its better to be safe than sorry tools are not cheap



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