Doorking 6400-081 Master Slave Residential Opener Underground Operator
Doorking 6400 installs underground making it virtually invisible and satisfies the most sophisticated automation needs without being detrimental to the original gate design. Invisible and powerful, the motor/drive mechanism is constructed in die-cast aluminum with a special corrosion-proof treatment, and because the drive unit is gear driven, there is no need to worry about hydraulic leaks, check valves or pumps. The underground self-supporting foundation box is built from corrosion-proof steel and has a galvanized steel cover. A lockable manual release lever is designed so that it can be operated from inside or outside the gate.
Doorking 6400 features built in limit switches that precisely control the start / stop speed, and travel of your gate. The microprocessor based electronic control board provides many advanced features typically not found in operators in this class, and with a 24 volt DC operating voltage, the 6400 is ideal for residential applications.