Re: hi-freq motors[perske etc]

> How about Onsrud/Danly (BIG spindles) and Rockwell/Precise?
> The Onsrud is definitely made as a wood router, the Rockwell/Precise
> is made for internal grinding, but could be used for other purposes.
> Where do you get the inverters to run these motors? I have
> figured out how to use late-model VFD's that go to 400 Hz, but
> that limits spindle speed to 24,000 RPM.
>
> Jon

Jon
I don't know if Onsrud will sell to guys like us! I have seen
inverters up to 1000hz,do a search for "dealerselectric.com"[i think]
seems the toughest inveters to find are 230v input for larger than
71/2hp plenty of them for 460 on ebay.
Carl