[TheForge] Krause/Nazel type air hammer

Tue Dec 3 20:06:00 2002

Tell me more about this mod.
I started to build a Krause/Nazel type air hammer. I was to the point where
I hyad the frame, hammer slide, hammer cylinder, power cylinder, crank and
motor in place. I had a 2 HP 3 PH motor powered with a variable frequency
drive. With an 88# hammer weight, 2 HP was not enough to work. As soon as I
connected the pump to the hammer cylinder it stalled the motor. It would
need at least 5HP and I didn't have that much power available at the forge.
So I bought the valves and a long air hose and converted it to a Kinyon
style hammer. I could use a little better control but what I have works
pretty good.

Darrell

----- Original Message -----
From: "Shannell Sugrue" <[email protected]>
To: <[email protected]>
Sent: Wednesday, December 04, 2002 7:35 AM
Subject: Re: [TheForge] Krause/Nazel type air hammer

> There is a valve that does have a square or rectangle opening, called a
plug
> valve I think. This  is a mod you can do to a kinyon to get more
progressive
> control
>
>
>
> > > i thought of that too. in fact i bought 2 three way ball valves
> > > from mcmaster carr. i still think it might work but i was
> > > dissuaded by someone. the problem (they said) was that the valves
> > > don't open progressively. that is because the opening in the
> > > valve isn't a straight sided opening like a square or rectangle.
> > > it starts opening with just a little crescent and then goes from
> > > there. you can visualize better than i can describe (i hope).
>
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