Rolling Shutter Motors are suitable for the automatic rolling door andwindow system of dwelling house, office, shops, and hospitals.Features:1)Powerful strength, overheat protection when overloaded 2)In case in the absence of power, a release chain can be operateddoor manually 3)Loading up to 300kg/500kg/600kg/800kg/1000kg 4)Limit switch unit enables precise adjustment of door in both up anddown positions 5)Electric and manual operation 6)Control panel wiring available to safety device, alarm lamp and remote controller 7)Easy installation, legerity design, low noise, small power consumption 8)Overheat protection