Mad Machinist
Cast Iron
- Joined
- Oct 24, 2006
- Location
- Sharon, PA
I've got a 50 HP boring mill with a 2 speed (900/1740) motor that I want to brake. It is not possible to put a mechanical brake on the thing. The duty cycle of an AC motor brake is no where near enough, at least the ones I have found. If anyone knows of one with a duty cycle that can handle frequent start/stops thats the way I would go. The local motor shop wants me to put a VFD on the motor. The problem is I need the 50 HP at 900 RPM so I need to run the motor in both speed ranges, without stopping first. Is it possible to do this?