NJJC Precision Machinery Technology Group, a leading manufacturer of motor rotor cores and precision stamping parts in China, invested nearly RMB 30 million in the introduction of high-speed precision punches from Nidec Minster Corporation.
NJJC focuses on R&D, production and sales of motor stator and rotor cores and precision stamping parts. The main products introduced include mold design and manufacturing, motor stator and rotor, stamping products, etc.
The material used for the stator and rotor cores of the motor is electromagnetic steel sheet. Although the electromagnetic steel sheet itself does not have magnet-like magnetism, it will have good magnetism after the current passes through the coil and has the function of converting energy. This is the transformer, motor The working principle of electrical equipment such as generators and generators.
The precision of the motor stator and rotor core production process has a significant impact on the motor's power characteristics and efficiency. For transportation vehicles such as electric vehicles, the power transmission system mainly comes from motors and motors, which need to be able to output high torque, high speed and high efficiency to improve the acceleration characteristics and cruising range of electric vehicles.
Compared with the traditional motor stator and rotor cores, the stator and rotor cores for electric vehicles must have higher magnetic flux density, lower core loss and high-precision dimensional accuracy, and require high-level manufacturing technology and quality. The R&D and design team of Jingcheng Precision has successfully developed its related products based on its accumulated production experience over the years, which have been recognized and adopted by customers of electric vehicle manufacturers. At present, Jingcheng Precision's customers include new energy car companies such as Weilai Automobile.