VEVOR Automatic Gate Opener, 900W Electric Sliding Gate Opener for Doors up to 65.6ft 4409lbs, Chain Drive Rolling Door Motor with Infrared Sensor & 2 Remote Controls, Driveway Gates Opening SystemPure Copper MotorDurable Iron SprocketRobust Steel BaseWaterproof & DustproofVersatile ApplicationDurable & ReliableMotor Speed: 1400r/min,Frame: 14.17×5.51×7.87 inches / 360×140×200 mm,Max Travel Distance (Door Width): 65.62 ft / 20 m,Main Materials: Cast Aluminum + ABS Shell,Running Speed: 8m/min,Item Model Number: MD900W,Product Net Weight: 44.54 lbs / 20.2 kg,Rated Power: 900W,Load Capacity Range: 0-4409.24 lbs / 0-2000 kg,Main Unit: 10.79×7.87×11.81 inches / 274×200×300 mm