Undercoated aluminum winding wire for electric motors is a type of wire used to make windings in equipment such as electric motors and generators.

The conductor of undercoated aluminum winding wire is made of aluminum. Aluminum has a lower density and cost, making undercoated aluminum winding wire advantageous in lightweight designs and applications where economy is important.

Undercoating is the application of a layer of insulating material to the surface of an aluminum conductor. This insulating coating helps to improve the electrical insulation and temperature resistance of the winding wire, while also providing some mechanical protection.


The undercoating material for primed aluminum winding wire is usually a high temperature resistant insulating material such as Polyimide or Polyamideimide. These insulating materials have good temperature resistance and electrical insulation properties that protect aluminum conductors from damage and electrical interference.

   - Lightweight: The lower density of primed aluminum winding wire compared to copper conductors gives the motor a weight advantage for applications requiring lightweight design.
   - Good Electrical Properties: The electrical properties of undercoated aluminum winding wire meet the requirements of most motor applications, including resistance, conductivity, and insulation.

Undercoated aluminum winding wire is widely used in a variety of motors and generators, including industrial motors, household appliances, automotive motors, and power generation equipment. They are suitable for applications requiring high performance and economy.


   - Undercoated aluminum winding wires may have problems with galvanic corrosion when in contact with other metals. Care needs to be taken in the selection of appropriate connectors and adapters for connection and termination to prevent galvanic corrosion from affecting the performance and reliability of the line.
   - Undercoated aluminum winding wire usually needs to be used in conjunction with other electrical components (e.g., insulating materials, insulating paper, etc.) to ensure insulation and stability of the winding.