Specifications:

Working environment and conditions:
1) Air temperature change as well as season.
2) Relative humidity:90%(25°C).
3) Voltage and frequency is in line with the product nameplate.
4)Short hour working system, continuous operation not exceeding 5 mins.

Feature:

1) Shell : Aluminium alloy , solid and lingt but durable and easy to install.
2) Thermal efficiency protection device, protect rolling door from damage and motor burned.
3) When power failure, it convenient to manual operation.
4) Insurance device for chain broken,automatic slack adjuster for chain.
5) Equiped by a stand-by battery (14AH/12V) , and it works when the power off.
6) Remote control: long-distance operation.