The products mainly include wide temperature (-60ºC~+85ºC), high temperature (- 20ºC~200ºC), vacuum (10 -5 Pa ), cryogenic (-196ºC~+100ºC) stepper motors, servo Motors, radiation-proof motors, vacuum planetary reducers and other series of standard products. The motors adopt high-precision and low-bearing backlash special bearings, which significantly improves its service life and stability and ensures stable lubrication effect. After professional thermodynamic design, the wide-temperature stepper motor can adapt to extreme temperature environments, and its operating temperature range covers -60°C to +85°C, meeting various harsh operating requirements. The magnets are made of special materials with strong temperature resistance and weather resistance, allowing them to maintain excellent performance under high temperatures and harsh environments. While satisfying the speed and torque, the noise pollution and vibration wear of the equipment are reduced through advanced technological optimization.The high-temperature vacuum stepper motor adopts a new design, selects special materials, and completes the manufacturing and inspection of the special motor through a novel production process.the lowest working temperature can reach to -20ºC, the highest working temperature can reach up to +200ºC, and the vacuum degree is better than 10 ^-5 Pa. This series provides standard designed of 28mm, 42mm, 57mm, and 86mm frame size two-phase four-wire hybrid stepper motors. At the same time, motors of other specifications can be customized according to needs, or can be customized for special requirements such as radiation, mold resistance, impact resistance, and shaft output form. This series of products also performs well in high-cleanliness environments. Unique material selection and complete back-end processing technology ensure its excellentperformance in high-cleanliness environments. In addition, Zhonggu Weike can also provide high-temperature vacuum (planetary, harmonic) reducers of corresponding grades according to customer needs. In the process of technology development, through material selection, structural optimization design and special processes for key components of the motor, the low-temperature adaptability problem of the stepper motor in the -196°C condition has been solved, thus improving the products' life.