 Rotary milking sheds (also known as Rotary milking parlor) consist of a turntable with about 12 to 100 individual stalls for cows around the outer edge.A "good" rotary will be operated with 24–32 (~48–50+) stalls by one (two) milkers.The turntable is turned by an electric-motor drive at a rate that one turn is the time for a cow to be milked completely.