Interior Magnet Motors Extend Much Broader Traction Coverage
Manufacturers increasingly specify interior permanent magnet synchronous motors that deliver higher torque density than surface-mounted designs can support reliably across expanding mainstream electric vehicle traction programmes, where sustained efficiency matters more than the added engineering cost interior architecture introduces, with providers such as Nidec Corporation expanding interior magnet production capacity to meet rising specification demand across their growing OEM customer base worldwide. Interior magnet segment demand grows about 12% a year, and gross margins run 22% to 29% across the category. This trend continues accelerating through coming years across most major producing regions and application.
Market Impact: traction priorities add 3-5% growth








