I need the right DC motor

[friogatto]

First, if this is in the wrong forum please let me know which one to look in / post.
I am in search of a DC motor. Here are some of the requirments.
Speed adjustable (future timer/driver controller)
Approx 1000 RPM - Max 2000 - min stop
For trial purposes up to 3000 rpm
Compact as possible
Maintenence free
continous duty rated
sealed if possible but not manditory
Trying to keep cost down.

This will be going in a saltwater environment. It will be moving a 1 1/2" diameter X 10" tall squirrel cage type impellar running 24/7. Enough torque will be required to start the impellar without to much wear on the motor.
I am new to this forum and know nothing about DC motors so any suggetions would be great. Especially +'s and -'s of particular motor features.
Thanks

 

[Skogsgurra]

Yes, you are in the wrong forum. Try "Electric motors & motor controls engineering" instead.

Anyhow: When you ask the same question in that forum, please add power data. It is almost impossible to guess what power you need from from your description. Also, what DC power do you have available? Volts?

And I wouldn't be surprised if you find out that you are better off with a PM AC motor - fed from a frequency inverter.

See you in the motor forum!