The SHD series intelligent electric actuator is a new generation product jointly developed based on the introduction of the latest international control technology. This product is an intelligent product that integrates various latest automatic control technologies such as absolute encoder technology, sensor technology, bus control technology, infrared remote control technology, LCD display, magnetic switch, and advanced manufacturing technology. The advanced concept of product design has the characteristics of small size, light weight, wide torque range, and high protection and explosion-proof level. This product is a device that controls the operation of the final control component (such as a valve) in an open-loop control system, that is, a product that meets the requirements for valve opening and closing. According to the working environment, it can be divided into two series: ordinary products and explosion-proof products. The performance indicators meet JB/T8528-97 "Technical Conditions for Ordinary Valve Electric Devices" and JB/T8529-97 "Technical Conditions for Explosion proof Valve Electric Devices" respectively.