SLIDESMART DC keeps your gate moving even after AC power loss. This commercial grade, continuous duty, electromechanical, chain driven slide gate operator is designed for millions of low maintenance cycles. SLIDESMART DC incorporates soft-start, soft-stop technology to gracefully operate gates up to 50 ft in length and up to 3,000 lb with independently programmable open and close speeds from 0.75 to 2.25 ft/s, depending on model. Unique "Ice Breaker Mode" powers through morning ice/snow buildup, reducing unnecessary service calls and user complaints. Adaptive IES (inherent entrapment sensor) optimizes gate resistance sensitivity and reduces false trips and unnecessary call backs. No heater required unless temperatures drop below -13° F (-25° C). The SlideSmart DC 10F, 15 low flex, zinc-plated chassis provides superior corrosion protection. Operator features an attractive, tight fitting, key locked, fade resistant cover. The HD25, HD30 models feature a sturdy steel enclosure.