Electric shutter door machine features:
1, the use of aluminum alloy shell, solid and lightweight, easy to install.
2, low noise during operation, less vibration, less power consumption.
3, thermal protection device to prevent damage to the roll door and the motor burned.
4, manual operation during power outage, convenient and labor-saving.
5, the chain after the fuse and automatically adjust the chain tensioning device (optional).
6, additional remote control, storage devices, burglar alarm equipment.