5. Roller shutter door could be opened and closed by remote controller six. In accordance to lifting potential, range from 300KG,600KG,800KG,1000KG,1300KG,1500KG2000KG 7. Add-ons : Chain,Equipment,Chain Plate, Driving plate, Bracket for bearing,Shaft, End Plate, DC Rolling CZPT Facet Motor Series: With reduced voltage and robust energy.