Re: [CAD_CAM_EDM_DRO] crank as hell

Hi Sven:
Have you considered using a clutch?
Then you could bring the motor up to speed and just engage the clutch when
you're ready to cast.
Cheers

Marcus
-----Original Message-----
From: Sven Peter, TAD S.A. <peteryco@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com <CAD_CAM_EDM_DRO@yahoogroups.com>
Date: Friday, April 20, 2001 5:56 PM
Subject: Re: [CAD_CAM_EDM_DRO] crank as hell

>
>Hello folks,
>a off topic question.
>For a actually working centrifuge (High frequency induction for metal
>casting)
>I shall put a new motor on that starts up much faster.
>The 7 kg cross beam of 73 cm length needs with the original 250 watt
>(1/3 hp)
>normal single phase motor two turns to come on speed.
>Result: The castings come out defective.
>First I thought about to put a 1 or 2 hp three fase motor on it.
>Are there other motor types that still have a better cranking at the
>start up???
>
>Sorry, but 95 percent of my daily bread experience is based on three
>fase motors.
>The rest is a closed book for me.
>Thank you for any response.
>Sven Peter