SBTL2000 series swing brakes adopt DC brush motor for maintenance-free, new digital positioning, the product shell adopts international standard SUS 304 stainless steel material, beautiful appearance, rust-proof and durable, all of which are uniform cross-stripes. Therefore, under sunlight or indoor lamp irradiation, the swing brakes show linear vertical reflections, noble nature, no transition at the welded surface, no manual disorder. Unique voice function will have harmonious prompt voice when the user is in normal traffic, guard against illegal entry or non-standard traffic, which makes the user feel more cordial; swing the brake to configure fire alarm interface, when emergencies occur, the brake automatically opens, in a free access mode, to ensure that the passage is unimpeded, and to facilitate the timely evacuation of personnel.