top of page

30,000 rpm motors are not future talk.They are already entering mass production.

  • Writer: Murali krishna
    Murali krishna
  • Apr 23
  • 1 min read

Updated: Apr 25

More speed. Less material. Better efficiency.

30,000 rpm motors are not future talk.

They are already entering mass production.


I came across this PUMBAA update recently.

It got me thinking deeply.


Most EV motors peak near 6,000 rpm.

Beyond that, torque starts dropping.

That limits high-speed acceleration.


Now imagine pushing 30,000 rpm.

System design changes completely.


Higher speed means smaller motor size.

Less copper and magnet needed.

Even core material reduces significantly.


But rotor becomes the real challenge.

Centrifugal forces cross 40,000 g.


So what did they change?


They moved to 1000 MPa steel.

That doubles strength vs conventional laminations.


They used laser welding stacks.

Tolerance goes down to microns.


Magnet retention becomes critical here.

So they used expanding adhesive layers.


Topology also plays a role.

Double-layer U-shaped IPM helps.

Torque improves without extra magnets.


Now comes thermal challenge 🔥

Frequency hits around 500 Hz.

Hairpin windings handle this better.


Oil cooling directly hits copper.

Temperature spread stays very low.

And power electronics matters a lot.


1500V SiC enables faster switching ⚡

This is not just motor design.

This is full system engineering.


I see a clear industry direction here.

High-speed, compact, system-optimized drives.


Question is:

Will 30,000 rpm architectures become standard

for next-gen EV two-wheelers in India?


🔔 Follow me on Linkedin for insights on EV technology, electric motors & Tech.

🔥 Get EV updates directly on WhatsApp – join 600+ engineers: [Click here]


Original post on my Linkedin - Click here



Source: Natlawreview website

 
 
 

Comments


Phone

Please contact me

via Form

Follow Me

  • LinkedIn
  • Instagram
  • Whatsapp
  • Twitter

© 2026 By Murali Krishna Uriti.

bottom of page