Domestic demand for micro-motors has been growing since the 1980s. China has introduced more than 50 production lines to realize large-scale and large-scale production of 25 major categories, 60 series, 400 varieties and 2000 specifications of micro-motors. The main products are brushed permanent magnet DC motor, low power AC motor, AC/DC series motor, shaded pole motor, stepping motor, vibration motor (for mobile phones) and so on.
In 1999, China's micro-electric motor production was about 3 billion units, of which private and state-owned enterprises produced about 250 million units, and the sole-owned enterprises produced about 1.2 billion units. Hong Kong's output is about 1.4 billion units (Dechang's 1.2 billion units), Taiwan. The region's output is about 180 million units. In 2000, the production volume was about 3.9 billion units, accounting for 60% of the global total.
Micro-motors with high technical content, such as precision brushless motor, high-speed synchronous motor, high-precision stepping motor, chip winding brushless motor, high-performance servo motor and new principle new structure ultrasonic motor have not yet formed commercial or mass production capacity in China. . Therefore, domestic high-precision micro-motors also rely on imports. According to customs statistics, the average annual use of foreign exchange increased by 26.9% from 1995 to 2000. Although it increased by 4.81% in 2001, it reached 1.197 billion US dollars.
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