370w sliding gate opener electric operator remote control automatic1m rack soft start to ensure a smooth start and smooth operation of the motor specificaitons rack materialcold rolled steel color silver fit forsliding door shaperack tooth width8mm tooth height10mm lengthabout 1m surface hardnesshard module4 tooth positionexternal motor power supply voltage ac 220v±10% 50-60hz motor power 370w motor speed 1400 revolutions/minute opening speed 10-12 meters/minute output torque 20n.