


Motor core is the core electromagnetic structure of all kinds of motors, generators, commonly known as magnetic core, mainly by the stator and rotor two major structural components, is to determine the electromagnetic conversion efficiency of the motor, the stability of operation and the service life of the core accessories. The stator is a fixed structure, the rotor is embedded in the stator to complete the rotary movement, relying on the core’s excellent magnetic conductivity to build a stable magnetic flux conduction path, to realize the efficient conversion of electrical energy and mechanical energy, effectively reduce the loss of the magnetic circuit, to protect the overall performance of the motor operation.
Motor core is manufactured by JINMA Electric using international advanced high-speed stamping, precision stacking, self-bonding one-piece molding and other processes, and the entire automated assembly line production can continuously complete the blanking, finishing, trimming, automatic stacking, torsion and inclination stacking, rotary drop and other processes, with high precision and structural stability of the finished product.
Relying on high-quality raw materials and refined process control, motor core can effectively optimize the magnetic circuit structure of the motor, reduce magnetoresistance, vibration and energy consumption, and is widely applicable to automobiles, home appliances, industrial equipment, new energy power generation and other fields, and is a high-quality motor core accessory suitable for the international market.

Motor core is made of high-quality silicon steel with high magnetic permeability and excellent magnetic field conduction ability, which can generate a high-intensity uniform magnetic field under a small excitation current, greatly improving the electromagnetic conversion efficiency, effectively reducing the copper loss and energy consumption of the motor and optimizing the motor power factor, which is suitable for the research and development of energy-saving motors and ancillary needs.
The motor core adopts low-loss silicon steel sheet, amorphous alloy and other high-end magnetic materials, precisely controlling the hysteresis loss and eddy current loss, and the iron loss index reaches the international superior standard. It can significantly reduce the temperature rise of the motor, reduce the heat loss of the equipment, slow down the aging speed of the accessories, effectively prolong the overall service life of the motor, and fit for long time and high load continuous operation conditions.
Motor core saturation magnetic induction strength performance is excellent, can carry more magnetic flux, in the same volume of equipment to achieve higher power output, effectively improve the power density of the motor. It can meet the demand for high-power, miniaturized motors in new energy vehicles, aerospace, high-end industrial equipment and other international high-end fields.
Optimized materials and processes for high-speed motor operating conditions, the yield strength of the iron core rotor part of this motor is over 500MPa, which can stably withstand the high strength centrifugal force generated by high-speed rotation, eliminating problems such as operating deformation, cracking, and deflection, etc., and the mechanical structure is extremely stable, which is suitable for high-speed, high-load industrial motor operating scenarios.
Motor cores have been widely used in new energy passenger cars and commercial vehicle drive motor systems, and have been adapted to more than 200 types of automobile motors. Relying on the advantages of high power density, low loss and high stability, it can effectively improve the driving efficiency of new energy vehicles, reduce energy consumption, optimize the quiet effect of the whole vehicle, and adapt to the high-end supporting standards of overseas new energy vehicle enterprises, and help upgrade the green travel equipment.
It is suitable for mainstream home appliances, and can be used as the core components of AC motors and BLDC motors for air conditioners, refrigerators, vacuum cleaners and inverter appliances. With the advantages of low noise, low vibration, and low energy consumption, we have improved the stability of home appliances and the experience of using them, and our products are compatible with the international energy-efficiency standards for home appliances, and have been exported to a number of overseas countries and regions in large quantities.