(Controls)Industrial Door Openers Input voltage:240VAC lifting force:1000 ... ,rate of moto reduces jerking,ensures that the door operationis quieter,faster and smoother and extends the life ... ensures that if the path of the door is obstructed ,it immediatly stops.c.when opening or closing ,the ... electrical coding and scanning,precise position of door is possible (Controls)Industrial Door Openers,Operators