1.Rolling shutter opened and closed by the power-driven operation.
2. Limit switch unit enables precise adjustment of door in both up and down positin.
3. In case in the absence of powerm a release chain can be operated door manually.
4.Powerful strength, overheat protection when overloaded.
5.One-phase rolling door motor has the capacitance automatic dis charge device for security overhaul.
6.Easy installation, low noise, small power consumption.
