Notifications
Back

NdFeB Sintered

Permanent Magnet

JS Link is quickly positioning itself within the diversified supply chain—a critical global priority

amidst China's current monopoly over the rare earth market. 


By aligning with efforts to re-establish a rare earth value chain centered around Western countries,

JS Link aims to build a sustainable business in the manufacturing of rare earth permanent magnets.


HOME > MAGNET > PERMANENT MAGNET

High Performance Permanent Magnet

Every step in the process is crucial to manufacturing the highest-quality permanent sintered magnets. 

✓ The Finest Quality Metal

More than 99.8% Purity Level

✓ World-class Alloy Composition

SC Alloy Composition Know-how

✓ Mass Production Know-how

Technology Based on Decades of Experiences

Market Overview 


Permanent magnets are critical components across a wide range of industries, including robotics, automation, drones, vehicles, wind generators, elevators, fighter jets, air conditioners, refrigerators, and Urban Air Mobility (UAM). With ongoing industrial advancements, the demand for permanent magnets is projected to increase exponentially. As China continues to leverage its dominant position in the rare earth market, efforts are underway to restructure the global supply chain, focusing on Western countries and their allies.

✓ Demand Forecast of Permanent Magnets

Source: Korea International Trade Association

✓ Countries With Most Magnet Imports from China in 2021

Country

Volume (tons)

United States

6,656.81 

Germany

6,497.34

Republic of Korea

5,408.01

Vietnam

3,801.89
Italy2857.75
Thailand2,460.75
Taiwan1,912.42

Source: Global Information (Premium Market Research Reports), 2021

Key Components of the High-Tech Industry 

Permanent magnets are essential in various industries, including robotics, vehicles, wind generators, elevators, fighter jets, air conditioners, refrigerators, and drones in electric systems. 

Shifts in the Global Value Chain

The U.S. Congress and European parliament are offering subsidies and tax incentives for domestically produced permanent magnets. Several large companies from the U.S., Europe, and India are also entering the global supply chain, announcing plans to begin permanent magnet manufacturing.

China's monopoly, Japan's remaining market share 

China dominates over 80% of the global permanent magnet market, while major Japanese companies (T, S, H, etc.) hold the remaining share, focusing on high-quality, high-value-added magnets. 

Limited Technology Outside China and Japan   

Only a few companies in China and Japan possess the advanced technology and expertise needed for the mass production of high-value permanent magnets.

Types and Characteristics of Permanent Magnets


Permanent magnets are classified into four main types: neodymium (NdFeB), samarium cobalt (SmCo), ferrite, and Alnico magnets. Neodymium magnets are the strongest and most efficient, making them essential for powerful drive motors. Samarium cobalt magnets, with a high maximum operating temperature, are second only to neodymium in strength and are critical in defense applications, such as fighter jets, tanks, and missiles, where high-temperature environments are common.


Nd Magnet

SmCo Magnet
Ferrite Magnet
AlNiCo Magnet

Coercivity (kOe)

11~30
15~25
3~4
0.6~1.5

Max Temp.

80~180ºC
310~370ºC
250ºC
520~550ºC
BH Max (MGOe)
23~50
15~25
3~4
1.3~11

Source: Daishin Securities Research Center

  • NdFeB Magnet
  • SmCo Magnet
  • Ferrite Magnet
  • Alnico Magnet

NdFeB Magnet

The Strongest Magnet in the Planet.

  • The most powerful permanent magnet on the planet and is essential for manufacturing powerful and efficient motors.
  • Manufactured by composing NdPr, iron (Fe), boron (B), etc.
  • Used as a key component across all industries, including HEVs/EVs, UAMs, wind turbines, robots, elevators, and medical devices.

SmCo Magnet

Magnet used in special environments; has the second highest magnetic force after Nd magnets and has a high maximum temperature of use.

  • Manufactured by composing Samarium and Cobalt, etc.
  • High maximum temperature of use and a strong magnetic force; often used in the defense industry.
  • Essential in high-temperature environments such as fighter jets, tanks, and missiles.

Ferrite Magnet

Inexpensive magnet with iron oxide as its main component.

  • Magnetic force is weak; very strong against heat.
  • Low-end magnet that is relatively inexpensive and is common.
  • Used for products that do not require strong magnetic force, such as hoof magnets, toys, TVs, phones, and speakers.

AlNiCo Magnet

Magnet made of aluminium, nickel, and cobalt.

  • Most resistant against heat (up to 550 degrees Celsius).
  • Weak magnetic force, but does not easily break due to strong durabilty.
  • Used in products require weak magnetic force, such as sound devices, sensors, and voltmeters.

Types and Characteristics of Permanent Magnets

Permanent magnets are classified into four main types: neodymium (NdFeB), samarium cobalt (SmCo), ferrite, and Alnico magnets. Neodymium magnets are the strongest and most efficient, making them essential for powerful drive motors. Samarium cobalt magnets, with a high maximum operating temperature, are second only to neodymium in strength and are critical in defense applications, such as fighter jets, tanks, and missiles, where high-temperature environments are common.


Nd 

Magnet

SmCo Magnet
Ferrite
Magnet
AlNiCo Magnet

Coercivity

(kOe)

11~30
15~25
3~4
0.6~1.5

Max

Temp.

80~
180ºC
310~
370ºC
250ºC
520~
550ºC
BH Max (MGOe)
23~50
15~25
3~4
1.3~11

Bio Dept.

31, Magokjungang 8-ro 3-gil, Gangseo-gu, Seoul, Korea

TEL +82-2-3153-1500

FAX +82-2-364-4778

EMAIL office@jslink.co.kr

Magnet Dept.

47, Pildong-ro, Jung-gu, Seoul, Korea

TEL +82-70-4736-6115

FAX +82-70-4736-6152

EMAIL magnet@jslink.co.kr

Magnet Factory

2-6, Ochu-gil, Godeok-myeon, Yesan-gun,

Chungcheongnam-do, Korea

TEL +82-70-7771-0078

FAX +82-41-338-3433


Bio Division
31, Magokjungang 8-ro 3-gil, Gangseo-gu, Seoul, Korea
TEL
+82-2-3153-1500
FAX
+82-2-364-4778
EMAIL
office@jslink.co.kr
Magnet Division
47, Pildong-ro, Jung-gu, Seoul, Korea

+82-70-4736-6115

+82-70-4736-6152

magnet@jslink.co.kr
Magnet Factory
2-6, Ochu-gil, Godeok-myeon, Yesan-gun, Chungcheongnam-do, Korea

+82-70-7771-0078

+82-41-338-3433