The magnetization of automotive motors requires high magnetization precision and stable magnetic flux control; the entire process is carried out step-by-step, centered on core operations such as magnet feeding, positioning, magnetization, and demagnetization testing. In the initial stage, servo positioning and magnetic field simulation ensure precise magnet polarity and assembly angles; pulse magnetization and in-line magnetic flux detection are then performed to reject semi-finished products with substandard magnetic fields. Polarity verification and visual pre-inspection are added during the middle assembly stage to ensure that every product meets design requirements; In the final production stage, comprehensive testing of magnetic flux, temperature resistance, and demagnetization rate is conducted. The entire production line addresses the challenges of feeding multiple magnet models and reduces human error through simple automated fixtures, ensuring the core user experience of magnetization accuracy, efficiency, and stability for automotive motors while controlling costs.
Jiuju Motor Assembly Line: Automotive Motor Magnetization - 1 | Jiuju Motor Assembly Line
The shipping area outside the workshop was a hive of activity. After multiple rounds of full-machine commissioning, simulated mass-production validation, and factory quality inspection, a Jiuju DC motor automatic assembly line completed all factory-out procedures, was loaded onto trucks on schedule, and is about to depart for the customer's production base, helping the customer's project advance production implementation on plan.
There are significant differences between manual and automated motor assembly in terms of precision, efficiency, consistency, and cost. The video uses a side-by-side comparison to illustrate the value of upgrading to an automated production line.
A multi-pole architecture brings a high-frequency fundamental; at 10,000 rpm the fundamental frequency can reach several kHz. Traditional IGBTs suffer soaring switching losses and severe heating — it is the MHz-class switching capability of SiC MOSFETs that truly matches high-frequency multi-pole axial flux motors.
Jiuju Automation has launched an automated assembly line for brushless DC motors, suitable for applications such as fans, water pumps, power tools, and home appliances. The line integrates high-speed winding, automatic magnet insertion, and finished product testing into a single process.
Magnetizing automotive motors demands high precision and stable flux control. This video case shows the complete assemble-then-magnetize process and the quality assurance methods.