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DNA's Technology

DNA Link is building a stable and sustainable rare earth permanent magnet manufacturing business,

supported by the expertise of the world’s leading permanent magnet technicians.

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HREE-Reduction Technology

Neodymium permanent magnets, critical for HEV/EV drive traction motors, and lose their magnetic strength at high temperatures. To prevent this, heavy rare earth elements like dysprosium (Dy) and terbium (Tb) are typically added to enhance heat resistance. However, these heavy rare earths are rare and expensive, making cost efficiency a challenge for manufacturers.


At DNA Link, we have secured advanced technology to reduce the use of heavy rare earth elements, maintaining high quality while reducing costs. Our products are on par with the top five manufacturers in China and Japan, offering a competitive edge in the global market.

DNA's Top Notch Technologies


✓ Alloy Composition Design

Alloy Composition Design. Fine Strip Technology

✓ Sub-micron Pulverization

Sub-micron Pulverization Technology

✓ Analysis

Computer Simulation Analysis-Based Magnetic Field Molding Technology

✓ GBDP

Grain Boundary Diffusion Process

Target Products

DNA Link aims to produce permanent magnets, specifically targeting the N-45UH grade used in hybrid and electric vehicle drive motors.

We employ Tb-Free technology and Dy reduction techniques in the manufacturing process of these N-45UH grades.

Br Reference

(kG)

Normal

M

H

SH

UH

EV Traction Motor

EH

AH

14.5 ~ 15.2

N-54

N-54M






14.2 ~ 14.9

N-52

N-52M

N-52H

N-52SH

N-52UH



13.9 ~ 14.6

N-50

N-50M

N-50H

N-50SH

N-50UH



13.6 ~ 14.3

N-48

N-48M

N-48H

N-48SH

N-48UH

N-48EH


13.2 ~ 13.8

N-45

N-45M

N-45H

N-45SH

N-45UH

N-45EH

N-45AH

12.8 ~ 13.4

N-42

N-42M

N-42H

N-42SH

N-42UH

N-42EH

N-42AH

12.5 ~ 13.1

N-40

N-40M

N-40H

N-40SH

N-40UH

N-40EH

N-40AH

12.1 ~ 12.7

N-38

N-38M

N-38H

N-38SH

N-38UH

N-38EH

N-38AH

11.6 ~ 12.2

N-35

N-35M

N-35H

N-35SH

N-35UH

N-35EH

N-35AH

11.3 ~ 11.8

N-33

N-33M

N-33H

N-33SH

N-33UH

N-33EH

N-33AH

11.0 ~ 11.4

N-30

N-30M

N-30H

N-30SH

N-30UH

N-30EH

N-30AH

iHc Reference

kOe

KA/m

≥12

≥955

≥14

≥1114

≥17

≥1353

≥20

≥1592

≥25

≥1990

≥30

≥2388

≥33

≥2625


 Dy, Tb Free         Dy GBDP         Tb GBDP         Ce Sintered


✓ Innovative Technology

✓ Grain Refinement, Equalization, Core Shell Formation

✓ Tb Free, saving more than 50wt% of Dy

✓ Br ↑, iHc ↑, Performance Score = 77 (MGOe +kOe)

✓ Design & Analysis

Mold Machine Design / Interpretation → Magnetic Field Mold Design → Anisotropic Rate Control  

→ Permanent Magnet Performance Prediction / Diagnosis

Target Products

DNA Link aims to produce permanent magnets, specifically targeting the N-45UH grade used in hybrid and electric vehicle drive motors. We employ Tb-Free technology and Dy reduction techniques in the manufacturing process of these N-45UH grades.

Manufacturing Process

High-performance permanent magnets are created through the following process.

Yesan Permanent Magnet Plant

*Currently undergoing remodeling as of 2024


Land25,195m²
Building8,259.97m²
Gross Area10,593.67m²