I need to control the speed of the lifting and lowering of a load with an electric hoist. The plan is to have a load be lifted to a specified height, then have it lowed back down in a cycle. I plan to use a load switching timer to do this.
The time it takes to lift or lower need to be controlled. I know pulleys are an option but not for this project. The travel of the cable will be about 30 feet vertical. Many of the electric winches state speed of 30 fpm. I want to slow this down so it takes about 45 min to and hour to travel the 30ft.
I have not bought the hoist yet since the ones I find are all AC. Does slowing down an AC motor with a PWM work?
I wish I could find a DC hoist. There are many DC winches but not hoists with mechanical brakes for overhead lifting.
The time it takes to lift or lower need to be controlled. I know pulleys are an option but not for this project. The travel of the cable will be about 30 feet vertical. Many of the electric winches state speed of 30 fpm. I want to slow this down so it takes about 45 min to and hour to travel the 30ft.
I have not bought the hoist yet since the ones I find are all AC. Does slowing down an AC motor with a PWM work?
I wish I could find a DC hoist. There are many DC winches but not hoists with mechanical brakes for overhead lifting.