i should go with?I need to use them to wind rope that will hold a load of about 30 to 50 pounds. Are these sufficient?Secondly, how can I control the motors. I am new to AC motors and not quite sure how to control them. I would like to implement a micro controller and have it be autonomous. It only needs to run at one speed, I don't need variable speed control.
Your links are cut off so we can't see what motors you're looking at. Any AC induction motor should work fine. However, you'll have to gear it down to hold that kind of force. Maybe you should look for a winch rather than a motor, the winch will have the gearing you need. The faster you want to wind the rope the more powerful the motor must be, but almost any AC motor is capable of pulling that force with the right gearing. The only question is what speed you'll get out of it. As far as controlling the motor, all you need is a mechanical relay. You can energize the relay from a micro controller with a transistor, a resistor and a diode.
