DoorKing, a leading manufacturer of vehicular gate operators for over 60 years, now offers a complete line of maximum security slide gate operators for perimeter vehicular access control. These operators are ideal for Airports, Seaports, Military Bases, GovernmentBuildings, Infrastructure (Electric Plants, Water Treatment Facilities, Dams, etc.) or for any application where a high degree of perimeter security must be maintained. Advanced features on these models include anti-tailgating, adjustable mid-stop and tamper proof internally driven limit switches. Options include adjustable speed control (1-2 ft/sec), slow-start, slow-stop and an emergency close feature on certain models that will close the gate at 6 ft/sec. These operators can handle gates up to 100 feet in length and weighing up to 10,000 Lbs.