Central motor is a kind of motor, which is installed in the center of a shutter door, so we called it central motor. Central motor is a stable technology as this type of motor is easier for installation and repair,markets accept this motor as a popular choice.With about 50 years developing history in the world,now it is widely used for kinds of shutter doors and front-shops. Now we have already achieved a wide range of central motors for garage door,series torque range from 140NM/160Nm /170NM/180Nm 220V 110V.