swatkins
Titanium
- Joined
- Jul 24, 2011
- Location
- Navasota / Whitehall Texas
According to a motor shop that is the case.....
A friend of mine has been rebuilding an old 12" pedestal grinder that has a 1.5 220 volt motor... He has spent a lot of time painting, fixing and he also put in new bearings... Once together he started it up on his 10 HP American Rotary RPC and let it run.. After 10 minutes he smelled smoke and turned it off....
Today he took it to a motor shop to see about rewiring it and the repair man told him the motor was ok even though my friend saw it smoking...
The repairman asked about the RPC and said that was the problem as it was too large for the grinder's 1.5 HP motor. Never heard that before.. Repairman said a large company had machines running on a 30 HP RPC and after they took off a few machines they started burning up motors... An engineer told them they should add more idler motors back to the line, which they did, and the problem went away.
I run a 1.5 HP grinder on my 10 HP RPC and 5 HP machines on my 20 HP RPC all the time without problems...
What is the scoop on running a motor on a RPC three times the rating of the motor?
A friend of mine has been rebuilding an old 12" pedestal grinder that has a 1.5 220 volt motor... He has spent a lot of time painting, fixing and he also put in new bearings... Once together he started it up on his 10 HP American Rotary RPC and let it run.. After 10 minutes he smelled smoke and turned it off....
Today he took it to a motor shop to see about rewiring it and the repair man told him the motor was ok even though my friend saw it smoking...
The repairman asked about the RPC and said that was the problem as it was too large for the grinder's 1.5 HP motor. Never heard that before.. Repairman said a large company had machines running on a 30 HP RPC and after they took off a few machines they started burning up motors... An engineer told them they should add more idler motors back to the line, which they did, and the problem went away.
I run a 1.5 HP grinder on my 10 HP RPC and 5 HP machines on my 20 HP RPC all the time without problems...
What is the scoop on running a motor on a RPC three times the rating of the motor?