Automatische Verschluss Türöffner

Automatic shutter door opener JD series of rolling shutter door motors applied to shopping centers, warehouses, garages, theaters, hotels, banks, factories and other buildings, rolling shutter door’s opening and closing, with electric and manual function. Roller shutter door’s opening and closing operation are power-driven, the up and down stroke was automatic controlled by limit switch. Accurate and reliable positioning, opening and closing security. Equipped with a motor winding overheating protection device, it will automatically cut off power supply when the temperature reaches 110 °,so as to protect the motors from being burned,and the device can start again when the temperature dropped to 70 ° (after about 8min). Features:1)Using 220V/380V power supply.2)In case in the absence of power, a release chain can be operated door manually3)Limit switch unit enables precise adjustment of door in both up and down positions4)Electric and manual operation5)Easy installation, legerity design, stable operation, low noise, small power consumption