ALEKO Gate Opener AC2000ACC Accessories Kit designed with a 120-Volt AC (2HP equivalent) motor, this heavy-duty chain driven sliding gate opener provides exceptional starting torque and continuous operation, making it ideal for most applications. It opens gates weighing up to 2000 lbs. and up to 60 ft. in length. For your safety, this model will stop and reverse if it encounters an obstruction on closing and stops when it encounters an obstruction on opening. Constructed with an aluminum alloy chassis, it's corrosion resistant and light enough for one person to carry and install. It also includes a 20 ft. chain, if your gates are more than 20 ft. in length then you need to purchase an extra chain.