Exploded view of an electric hub motor: cover plates, rim, magnet rings, stator with copper windings, and axle.

100% rare-earth-free hub motors.

A patent-filed ferrite design, for licensing to EV makers. Also available with 40 to 50% less rare-earth magnet, patent granted.

Talk to the founders See inside the motor
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Our design is inside the wheel.

A BLDC hub motor sits in the wheel and drives it directly. E-Samarp designs that motor for two-wheeler EVs. The same rare-earth-free approach extends to drone and commercial motors.

Open the motor. One part sets the supply risk.

Copper, steel and aluminium have many suppliers. Rare-earth magnets have very few.

For India, the magnets are the exposure.

  • ~90% of the world’s processed rare earths are controlled by China.1
  • ~30% of EV motor cost comes from rare-earth magnets.1
  • Apr 2025: China began requiring export licences for seven rare earths used in high-performance magnets.2

So we took them out.

100%

rare-earth magnet content

  • Neodymium
  • Ferrite

Ferrite hub motor, patent filed

No rare-earth magnet at all, and no exposure to its supply chain.

Reduced rare-earth hub motor, patent granted

40 to 50% less rare-earth magnet, for a one-to-one replacement.

Illustration only. This does not show the patented magnet layout.

Built for the line you already run.

Designed for existing controllers and production lines. The reduced rare-earth motor matches today’s hub motor one to one.

Peak power
2 to 4.4 kW
Battery
48 to 60 V
Ferrite motor
Scalable to 6 kW
Ferrite testing
No-load back-EMF validated

Designed in simulation. Checked on hardware.

Finite-element models shape the magnetic circuit before metal is cut. On the ferrite prototype, measured back-EMF was checked against those models at different speeds.

Three-phase back-EMFA B C

Illustrative visualisation, not FEA output or test data.

Rare-earth-free first. Five product lines around it.

One patent granted, one at final hearing, one filed on the rare-earth-free motor.

Indian patent filings, backed by four years of research and physical prototypes.

  1. Patent filedon the 100% rare-earth-free ferrite hub motor.
  2. Patent grantedon the reduced rare-earth hub motor, with a second at final hearing.
  3. Filing in progresson the drone motor range.
  4. 4+ yearsof sustained electromagnetic research and design iteration.
  5. Physical prototypesof hub motors across power ratings.
  6. Back-EMF validatedon the ferrite motor, measured hardware against FEA at different speeds.
Where each line stands
LineStagePatents
100% rare-earth-free ferrite hub motorPrototype built, no-load test with back-EMF validated at different speeds1 filed
Reduced rare-earth hub motorPrototype built, test results awaited1 granted, 1 final hearing completed
Drone motorsConcept established, designs in progressFiling in progress

IE4 and IE5 line-start PMSM: meets IS 12615, marketing and manufacturing plan under discussion. AI-based optimization: groundwork done, testing in process. Mid-drive versions of the reduced rare-earth motor are in progress. The ferrite motor has been tested at no load so far, so ask us for current load-test status.

Optimization, for motors you already make.

Many induction motors in production today were designed years ago, without computer-based tools. Redesigning them with FEM, multi-objective optimization and machine learning is intended to make them smaller, lighter, cheaper to build and more efficient. Testing is in process.

  • SizeReduce
  • WeightReduce
  • Material costReduce
  • EfficiencyImprove
  • Production lineLargely unchanged

The people behind the motors.

  • Dr. V. Rajini

    Dr. V. Rajini

    Director, Co-founder

    Professor and Head, EEE, SSN College of Engineering, Chennai.

  • Dr. V. S. Nagarajan

    Dr. V. S. Nagarajan

    Director, Co-founder

    Associate Professor, EEE, SSN College of Engineering, Chennai.

  • K R Anandakumaran Nair

    K R Anandakumaran Nair

    Co-founder, Mentor

    Former Executive Director, Lucas TVS. 45 years developing motor drive products in Tier 1 automotive.

  • Arun Mahapatra

    Arun Mahapatra

    Director, COO

    Senior business leader in IT, AI, consulting and enterprise technology. Selection panel member at venture capital firms.

  • Dr. Bharatiraja C

    Dr. Bharatiraja C

    Advisor

    Centre Head, Electric Mobility, and Professor, EEE, SRM IST. Fellow, Bhaskara Advanced Solar Energy.

Rare-earth supply is a global problem. We are solving it from Chennai.

A deep-tech design and innovation house, not a product company.

For investors

  • Strategic position. Rare-earth independence and Make in India.
  • Proprietary IP. A granted patent and filings across motor architectures.
  • Validated engineering. Prototypes built and back-EMF validation completed.
  • Capital-light model. Licensing, technology transfer and royalty revenue.
  • Large markets. Mobility, industrial, defence and textile.

info@esamarp.com+91 9962626677

Request the investor deck

For manufacturers

  • Two-wheeler OEMs. Hub motors with no rare-earth magnet at 48-60 V and 2-4.4 kW peak.
  • Motor plants. IE4 and IE5 line-start designs from 1.1 to 30 kW, to IS 12615.
  • Existing product lines. Optimization that improves a motor without changing how you make it.
  • Drone builders. High power density designs at 1, 4 and 12 kW.
  • How we work. Design, licensing and technology transfer. You keep your line.

info@esamarp.com+91 9962626677

Evaluate the hub motorDiscuss a licence

Talk to the people who designed the motor.

Ask about the rare-earth-free architecture, patent status, test status or licensing. The founders reply by email.

Intro call: talk to our expert

info@esamarp.com+91 9962626677

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