Definition: Servo system is a kind of automatic drive and execution system that controls the speed, position and torque of the object according to the instructions, and tracks the execution of the feedback instructions, mainly used in the field of industrial automation control with high positioning accuracy and running speed requirements.

Structure: The servo system consists of a servo driver, a servo motor and an encoder, and the encoder is usually embedded in the servo motor. In the cost composition of the servo system, the driver accounts for 42%; Motor accounted for about 35%; The encoder consists of a code disc, a light source and a receiver, and the cost is about 11%.

5X00062G01 Working principle: The servo drive sends a drive signal to the servo motor, while the encoder in the servo motor feeds the motion parameters to the servo drive, and the servo drive summarizes, analyzes and modifies the signal. The whole working process precisely controls the output variables such as the position, speed and torque of the actuator in a closed-loop way.

Classification: Servo system can be divided into general servo and special servo, and there are great differences in product characteristics. Special servo to provide specialized special customized services, high altitude operation, dust and waterproof, operating environment, explosion-proof requirements, high temperature starting requirements, rated speed and flange stop can be customized according to demand; In terms of product technology, special servo products can maintain a high level of operation in different application fields, and its rated power is up to 7.5kW, which is more suitable for special industries. The operating environment of general servo is limited to industrial environment but the application field is broader, general servo products are mainly used in traditional industries, so there is no requirement for offshore/offshore anti-corrosion requirements, underwater operation and explosion-proof. From the perspective of market structure, in China’s servo market, the size of the general servo market accounts for about 80%, and the size of the dedicated servo market is about 20%, which has basically remained stable in recent years. The localization rate of dedicated servo systems has been close to 90%, so the focus is on universal servo systems.

Application fields: There are many downstream application industries of servo system, and the proportion of high-end manufacturing tracks continues to increase. At present, there are about 17 industries using servo systems, and the top five industries in 2022 are electronic manufacturing equipment (15.81%), battery manufacturing equipment (13.56%), industrial robots (10.44%), photovoltaic equipment (7.57%), packaging machinery (6.57%). In addition to packaging machinery are strategic emerging related industries. If the electronic manufacturing equipment, battery manufacturing equipment, industrial robots, photovoltaic equipment, semiconductor, laser industry is defined as high-end manufacturing track, the track application proportion has reached 65%, and in recent years is still increasing, while the traditional track application proportion is shrinking.

5X00062G01 Market size: The servo system industry has broad prospects and the market size continues to grow. Benefiting from the country’s industrial policy of vigorously developing high-end equipment manufacturing industry, with the gradual disappearance of the demographic dividend and the continuous improvement of the level of industrial automation, the field of intelligent manufacturing has gradually expanded, and the development prospects of China’s servo system industry are broad. According to the “2023 China General motion Control Market Research Report” released by Industrial control network, the market size of China’s servo system in 2022 will be 20.6 billion yuan; In the next three years, the market demand for servo systems will maintain a growth of about 6-9%, and the market size will reach 26 billion yuan in 2025.