The main function of the screw is to convert rotary motion into linear motion, or torque into axial repeated force, and at the same time both high precision, reversibility and high efficiency, so its precision, strength and wear resistance have high requirements, so its processing from the blank to the finished product of each process should be carefully considered. At present, ball screw is the mainstream product in the industry, compared with the common screw (trapezoidal screw), its advantages in self-locking, transmission speed, service life and transmission efficiency are obvious.
Ball screw vice, also known as ball screw, ball screw is composed of a screw shaft and a nut, which in turn is composed of a steel ball, a preloaded, a reverser, a dust collector, etc.
Ball screw is a further extension and development on the Acme Screw, and its important meaning is to change the bearing from sliding action to rolling action. The common ball screw includes self-lubricating ball screw, silent ball screw, high-speed ball screw and heavy-duty ball screw, etc. And from the circulation method, ball screw includes two kinds of internal circulation and external circulation, where internal circulation means that the ball is always in contact with the internal cycle means that the ball is always in contact with the screw during the cycle, and the external cycle means that the ball is sometimes out of contact with the screw during the cycle. Due to the small frictional resistance, ball screws are widely used in various industrial equipment and precision instruments.
Ball Screw Industry Chain
From the industrial chain, the upstream is the raw materials and parts of ball screw, the raw materials mainly include steel, etc. The downstream application areas are CNC machine tools, electric injection molding machines, machinery industry, etc.
In recent years, the demand for high speed, high precision and high-quality processing has been rising, especially in the application industries such as aircraft carrier aerospace, automobile industry, mold manufacturing, photoelectric engineering and instrumentation, which has given rise to a larger and more high-end market demand for ball screws. Specifically, according to the relevant data, the global ball screw market size reached 1.75 billion U.S. dollars in 2021, up 6.0% year-on-year, with a compound annual growth rate of 6.2%. The global market size is expected to reach USD 1.859 billion in 2022.
From the domestic market scale, China as one of the important consumer markets for ball screw products, the domestic market scale accounts for about 20% of the total global scale. According to statistics, the market size of ball screw in China is 2.5 billion yuan in 2021, and the market size is expected to reach 2.8 billion yuan in 2022.
Global Market Competition Pattern
In order to achieve high-speed or precision processing, in addition to the structural rigidity of the machine tool equipment to strengthen the design, must have both high-speed spindle system and high-speed feed system, in order to achieve high-speed material cutting process, which has high requirements for the manufacturing capacity and design ability of enterprises, from the market competition pattern, the current global major ball screw manufacturers are NSK, THK, SKF, etc., CR5 market share reaches about 46%, mainly from Europe and Japan, according to the relevant data, Japan and European ball screw enterprises occupy about 70% of the global market share.
Domestic Enterprises Scale Progress
Shanghai KGG Robotics Co., Ltd. is mainly engaged in the design, development, production and sales of precision micro motion control products based on ball screws, linear actuators, encoders, direct-connected motors and their components for medical, 3C electronics, semiconductor equipment and industrial automation.
After years of research, Shanghai KGG Robotics Co., Ltd. has formed its own miniature ball screw production system, and the quality of the product is on par with Japanese KSS company, which can realize the whole process of complete localization. Shanghai KGG Robotics Co., Ltd. has also formed its own production system for ball screw stepping motor actuators, and the quality of products has gradually converged with foreign leading manufacturers and started to replace them in the domestic IVD medical device field. With the further maturity of the company’s product technology and further penetration in the medical device field, the company’s precision miniature ball screw and linear actuator products are expected to be fully promoted in the larger market and embrace a larger blue ocean of growth.
Post time: Oct-26-2022