Re: [CAD_CAM_EDM_DRO] surplus pneumatics ( was Re: Sources for beltsand pulleys

Jeff,
the cost of hydralics is prohibitive to me at this time, it is 10 fold
compare to pneumatics.
Cylinders don't differ too much, but hydro station, valves, connectors -
thousands of $$.
Regards, Alex

----- Original Message -----
From: Jeff Goldberg <jeff@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, May 05, 2003 6:02 PM
Subject: RE: [CAD_CAM_EDM_DRO] surplus pneumatics ( was Re: Sources for
beltsand pulleys


> Guys:
>
> I didn't read the whole thread, so this suggestion may be off the wall.
> Have you considered hydraulic, rather than pneumatic? It's slower, but
> 10,000 psi (and much higher) is fairly common. While it doesn't make that
> fast punch, Greenlee, Enerpac and others make large punches designed to go
> through some pretty thick material.
>
> Regards,
> Jeff
>
> -----Original Message-----
> From: hllrsr@... [mailto:hllrsr@...]
> Sent: Monday, May 05, 2003 6:00 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] surplus pneumatics ( was Re: Sources for
> beltsand pulleys
>
>
> Alex,
> 250 psi? Don't be thinking so! Try 100 to 150 psi MAX!
> If you can generate 250 with an industrial compressor it's going to be a
> multi stage pump which is alot more money (and pressure) than most shops
are
> ever going to need. If you need that pressure, use a small booster inline
to
> kick the pressure up for the cylinder, or go with a larger piston and
> smaller contact area on your punch.
>
> Psi * piston area = available force
>
> Also, Health and Safety are going to be all over your butt if you run a
> system like that and it isn't properly certified!
>
> Iain
> Maintenance department
> Bateman Mfg.
> Barrie Ontario.
>
> alex wrote:
> >
> > Hi, Chris!
> > Thank you for a feedback!
> > Down here, in Ontario 250 psi is about normal for air - nobody is
> > complaining so far...
>
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