Rolling Shutter Motors are suitable for the automatic rolling door and window system of dwelling house, office, shops, and hospitals.Features: 1)Powerful strength, overheat protection when overloaded2)In case in the absence of power, a release chain can be operated door manually3)Loading up to 300kg/500kg/600kg/800kg/1000kg4)Limit switch unit enables precise adjustment of door in both up and down position5)Electric and manual operation6)Control panel wiring available to safety device, alarm lamp and remote controller7)Easy installation, legerity design, low noise, small power consumption8)Overheat protection