Manual crank linkage actuator is mainly used for no power place or area inconvenient to install actuator, this kind of actuator is used more in the factory.
Crank linkage actuator is mainly used in factory workshop of more than a platoon fan, a door or window frame window of electric control, a motor is be used for linking multiple pair of rod to open several windows, which is very valuable.
According to the size and the number of linked windows, we can select the different linkage mode. The opening mode of rank linkage actuator is the perfect electric open manner for ventilation &smoke exhaust windows in factory.