China Industrial Factory Tour: Jaw-Dropping Electric Motor Manufacturing Process

Introduction to Lu'an Jianghuai Motor00:00:00

An overview of the company history founded in 1969, its extensive product range of over 10,000 specifications, and its status as a major industrial motor manufacturer in China.

Stator Core Stamping00:01:14

The process begins with cold-rolled silicon steel sheets being stamped into stator and rotor laminations using CNC machinery, followed by alignment and pressure lamination.

Winding and Insulation00:05:12

Technicians install insulating paper, pre-form stator windings, and use automated machinery to embed coils and bind them securely to prevent operation failure.

Vacuum Impregnation00:15:01

The stator undergoes vacuum impregnation where it is placed in a tank to ensure insulating varnish penetrates all winding gaps for better mechanical strength.

Rotor Die-Casting and Balancing00:18:24

Molten aluminum is die-cast into the rotor mold, followed by precision grinding and dynamic balancing to minimize vibrations during high-speed operation.

Final Assembly and Testing00:22:13

The motor is assembled by pressing the stator into the frame, connecting electrical leads, fitting bearings, and performing final performance tests including load testing and voltage checks.