One of the reasons that make using automatic or electric actuator is better than the manual actuator is that when you use the electric actuator, you will be able to save a lot of energy and effort. I know that you are not the one who needs to manage the heavy machineries in your factory; however, your employees need to take some rest too. If you force them to manage all of the heavy machineries without any help from the actuator, their effort will be wasted in only managing the heavy machineries while actually they can use their energy to do a lot of things.