Rolling Door Opener 1. Power supply: AC220V/50Hz 2. Output torque: 7N.M 3. Opening speed: 0.15-0.2m/s Rolling Door Opener1 ... time: ≤445. Max. lift weight: 30kg6. Power of transformer: 100VARolling door opener, roller shutter motor, roll up shutter operator1.It's used for ... open and close the rolling shutter of supermarket door, storehouse, cinema, hotel, roll up garage shutter, factory and so on.2.It ...