High Performance Commercial DC Barrier Gate Operators or Openers. The Liftmaster Mega Arm and Liftmaster Mega Arm Tower are DC-powered additions to the family of door gate operators. Designed with a 24V DC (1/2 HP equivalent) motor, these models provide exceptional starting torque and continuous operation, making them ideal for most applications. Constructed with an aluminum alloy chassis, they're corrosion resistant and light enough for one person to carry and install. The heavy-duty motor supports 6,000 cycles per day with an operator speed of 2.5 seconds to open or close.
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