DTR series rotary electric actuator has complete functions, including switching type, adjusting type, etc., it is small in size, light in weight, reliable in performance, bearings and key devices adopt imported products, worm gear output integration, eliminate coupling, gap, high transmission accuracy, small return difference; Special copper alloy forging, high strength, good wear resistance, aluminum alloy die-cast shell, beautiful and generous, small electromagnetic interference, installation at any angle, easy to use, anti-corrosion and anti-rust, no refueling. With double limit, overload and overheating protection, good safety performance. The full travel time is available at a variety of speeds, single-phase power drive, simple external lines, in addition, the DTR adopts advanced digital technology and highly integrated modules, and the mechatronic design can directly receive 4-20mADC or 1-5VDC standard signals output by computers or instruments to realize intelligent control and precise positioning of electric valves. In addition, we have organic external intelligent modules and in-flight intelligent modules for users to choose.