Re: [CAD_CAM_EDM_DRO] hi-freq motors[perske etc]

Hi, no, i have 4 driller spindles from advance control. they are air
sealed,bearings,power is a 3 phase motor which should be driven with a VFD
to get the 70,000 rpm output. cul brian f.

----- Original Message -----
From: <JanRwl@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, November 23, 2001 12:04 AM
Subject: Re: [CAD_CAM_EDM_DRO] hi-freq motors[perske etc]


> In a message dated 22-Nov-01 19:27:58 Central Standard Time,
> ka1bbg@... writes:
>
>
> > spindle motor/driller/grinder to rpms in the 300
> > thousand range and in many different hp. ratings
>
> I suspect ANYTHING above 36,000 RPM (if not just 28,000!) would be some
kind
> of air-turbine, rather than electrical, at ANY frequency!
>
>
> [Non-text portions of this message have been removed]
>
>
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