[TheForge] Re: Air hammer score

Thu Apr 25 09:11:00 2002

        Thanks Grant, I was always wondering why this was written in
different manuals.  I never understood why.  Appreciate the explaination.

Ralph


----- Original Message -----
From: "Grant Neil Sarver" <[email protected]>
To: <[email protected]>
Sent: Wednesday, April 24, 2002 11:40 PM
Subject: Re: [TheForge] Re: Air hammer score


> Actually it's just that electric motors are rated continuous and gas
> engines are rated peak. When you bog down a gas engine it stalls. When you
> bog down an electric motor ig generates more torque. With the big flywheel
> on the hammer and engine he should have no problem.
>
> grant
>
> Mike Spencer wrote:
>
> > > Mike I was referring to the power required to turn a hydraulic pump.
> >
> > > It takes 2 Hp(elect) to deliver 2gals/min @1500 psi.  It would take
> > > 3 Hp(mechanic) to deliver 2 gals/min @ 1500 psi.  This is my
> > > understaning so you need slightly more umph on the mechanical Hp's.
> >
> > Huh.  Okay, that's clear.  Good.  I have a couple of months to think
> > about it.  I'll have to some reading and asking around.  May be some
> > confusion due to conventional definitions of "horsepower" in different
> > domains of engineering.
> >
> > Thanks, Ralph.
> >
> > - Mike
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