Can a geared DC Motor be controlled in an overhauling load situation such as a crane hoist motor? Raising load should no problem but will motor be controllable when lowering? If not would a servo motor be a better choice? Noise in this situation is an issue so a stepper motor would not work.
I would think that an over head load should be done with a gear motor that will not lower the load if power is lost. Also, you probably don’t want to constantly power the motor in a stall situation. For a lower gear ratio gear motor that would be the situation with a constant load on it.
In other words, you want a gear motor that will not back-drive. Worm drive motors are known for this ability. A high gear ratio spur gear motor would also be difficult to back drive.
I will mention that in any over-head load, you have a great responsibility to insure safety. Even a fairly light load, of a few pounds can be deadly if it free falls from high enough. If you are not confident of your design, then you really need to consult with someone who can be confident.
-Joe