INTSUPERMAI 600kg AC Rolling Door Side Motor Electric Garage Door Remote Control Opener

100% copper winding material inside the motor, so it have a larger capacity and durable than other motors. Overheat protection :The motor is with overheat protect equipment. If the temperature up to 110, the power supply will be cut off automatically to protect the motor. Till the temperature down to 70, it can be used again. Mechanic Limit :Limit switch adjusts the door position in both "up" and "down" precisely and safely. You can through the manual button which makes the rolling door open and close. Noise reduction gear, special thread design, effectively reduce noise. High-strength stainless steel is thickened, stable and not swaying, and enhances service life. Double lightning protection, effectively prevent lightning strikes, safer to use.