... the normal door operator ,you need to adjust the speed and buffer speed to a value ,then the door can work smoothly ... 36V,100W bruth motor with high torque 3400r/min ,Max speed 70cm/s with little noise lower than 30dbMore Safe1.CANbus ... -3000mm800-3000mmnDoor weight150kg150kg x 2Opening speed0.7m/s0.6m/sClsosing speed0.7m/s0.6m/sHold on time:0-20sMotorDunker motor GR 63 ...