Roll Door operator BS-JM03 Power supply: 230V 50-60Hz Driving motor: 24V Motor power: 60W Continuous running: 20/h (under 30kg load) Running noise: <55db Min travel limit set: 3000mm Max lifting force: 400N Auto close time: 3min Door travel speed: 16cm/s Max lifting height: 3000mm Temperature range: -20oC +55oC