17 Cobalt Magnet Manufacturers in 2024
This section provides an overview for cobalt magnets as well as their applications and principles. Also, please take a look at the list of 17 cobalt magnet manufacturers and their company rankings. Here are the top-ranked cobalt magnet companies as of November, 2024: 1.ChenYang Technologies GmbH & Co. KG, 2.Dura Magnetics, 3.Electron Energy Corporation.
Table of Contents
Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
What Is a Cobalt Magnet?
Cobalt Magnets are magnets that contain cobalt.
Most often, it refers to Samarium Cobalt Magnets. When the ferromagnetic Cobalt and the rare earth Samarium are alloyed in a composition of 1:5 or 2:17, they have the properties of a powerful magnet. Next to neodymium magnets, cobalt magnets have the strongest magnetic force and have excellent temperature characteristics, making them important magnets in industry.
Uses of Cobalt Magnets
Cobalt Magnets are superior to Neodymium Magnets in terms of temperature characteristics. Since its magnetic force does not decrease even at high temperatures, it is suitable for applications requiring temperature stability. On the other hand, they are fragile and easily broken, so care must be taken when using them in applications where strength is required.
The following are examples of applications of Cobalt Magnets:
- Electrical motors for office automation equipment.
- Industrial motors such as those used to drive electric vehicles.
- Rotary sensors.
- Medical precision parts.
- Acoustic equipment and generators.
Principle of Cobalt Magnet
Cobalt Magnet is a generic term for magnets with cobalt as the main component. It is created by alloying cobalt with other metallic elements.
Cobalt is a transition metal element with atomic number 27 and element symbol Co, and is ferromagnetic. It belongs to group 9 on the periodic table, the same group as iron, and has silvery-white color and iron-like properties. However, it is also hard and resistant to oxidation.
Types of Cobalt Magnets
Cobalt magnets are classified into two types: Alnico magnets and Samarium Cobalt magnets.
1. Samarium Cobalt Magnet
Samarium is a rare earth element with atomic number 62 and element symbol Sm. It has a grayish-white color and soft properties. Samarium itself is not ferromagnetic. When combined with cobalt to form SmCo5 (1-5 series) or Sm2CO17 (2-17 series) alloys, it becomes highly magnetic.
Because they are more thermally stable and corrosion resistant than neodymium magnets, they are used in automotive products such as magnetic sensors, actuators for smartphone cameras, and medical devices. On the other hand, its weak mechanical strength limits where it can be used.
When first developed, these magnets had a composition ratio of samarium 1 to cobalt 5. However, Dr. Yoshio Tawara, a Japanese physicist, developed a Cobalt Magnet with several transition metal elements such as iron, copper, and zirconium added in addition to samarium and cobalt. Research results have shown that this magnet has very high performance among Cobalt magnets.
An example of the composition of a samarium-cobalt magnet currently on the market is one that contains 51 wt% cobalt, 26 wt% samarium, 17 wt% iron, and 6 wt% copper. Although these magnets are superior to other magnets in terms of heat resistance, they tend to be more expensive because they contain more cobalt.
2. Alnico Magnet
Magnets made of an alloy containing aluminum, nickel, cobalt, iron, and titanium. The name comes from the initial letters of aluminum, nickel and cobalt.
It is characterized by its high magnetic susceptibility and heat resistance. It is generally used in industrial equipment such as audio equipment, motors, and generators. It is often used in high-temperature environments because its magnetic properties change with temperature.
There are several types of Alnico magnets, including Alnico 2, Alnico 5, and Alnico 8.
Alnico 2 has the strongest magnetic force of all alnico magnets and is used in pickups for audio equipment. Alnico 5 has stable magnetic force at high temperatures and is used in industrial equipment such as motors and generators. Alnico 8 has a stronger magnetic force than Alnico 5 and generates higher magnetic energy and is used in motors and generators for higher performance.
Other Information on Cobalt Magnets
Ignition of Cobalt Magnets
Cobalt Magnets can ignite under certain conditions and must be handled with care. In particular, they are easily ignited when the magnet surface is dry or cleanly polished and may burn at low temperatures.
In addition, Cobalt Magnets are easily chipped by impact, which may result in a fine powder of Cobalt alloy. Because of the risk of spontaneous combustion, this metallic powder is designated as a Class II flammable solid under the Fire Service Act. Cobalt Magnets should be used safely and avoid any usage that may cause the Cobalt Magnet to wear out and produce alloy powder.
List of 17 Cobalt Magnet Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- China
- Germany
- Japan
- United Kingdom
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Adams Magnetic Products Co.
Samarium Cobalt (SmCo) Magnets
Manufacturer Overview
Adams Magnetic Products was founded in 1950 and is based in Elmhurst, Illinois. The company is an engineer and custom manufacturer of magnetic products serving aerospace, medical applications, packaging, green energy, data storage, and several other industries. The company’s product divisions include sheet& strip magnets, magnet assemblies, rare earth magnets, alnico, and ceramic magnets. Magnets can be coated and plated with materials such as epoxy, nickel, chrome, and vinyl. The company provides application and design engineering assistance, testing, CAD services, and product planning services for customers.
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Arnold Magnetic Technologies
SAMARIUM COBALT MAGNETS
Manufacturer Overview
Arnold Magnetic Technologies is a manufacturer of magnets, magnetic assemblies, and precision thin metals based in New York since 1895. The company deals in permanent magnets, flexible composites, electromagnets, magnetic assemblies, and precision thin metal foils. The permanent magnets, such as L-Type Laminated ones have various applications in the aerospace, automotive, motorsport, and industrial markets. Similarly, alloy strips and foils are used in industries that need to improve the power density of motors, transformers, and batteries. The composite sheets and strips are used for X-ray and gamma-ray radiation absorption, and RFI/EMI shielding and electromagnets are vital for defense projects.
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MAGNETIC PRODUCTS, INC.
Pneumatic Magnetic Separation
Manufacturer Overview
MAGNETIC PRODUCTS, INC. was established in 1981 and is based in Highland, Michigan as a manufacturer and supplier of magnetic separation products. Its product portfolio includes magnetic separators, metal detectors, conveyors, magnets. The magnetic separation products offered by the company are crucial components in various processing and recycling systems, enabling safe and efficient removal of metal contaminants. The products are used in various industries such as food, pharmaceutical, chemical, mining, and recycling.
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Magnaworks Technology, Inc.
Cobalt Magnets
Manufacturer Overview
Magnaworks Technology, Inc., established in Bohemia, NY, in 1996 is a manufacturer of magnets that are used in bio-magnetics, motion control, and aerospace. Their product portfolio includes magnet types such as Bonded Neodymium, injection Molded Neodymium Iron Boron, Sintered Neodymium, Alnico and Hard Ferrite. The company's products find application in Electric Motors and Generators, Medical Devices and Magnetic Sensors. The company also offers customer services that include design, assessment; quality control and customized services.
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Bunting-DuBois
Cobalt Magnets
Manufacturer Overview
Bunting Dubois began in 1959 as Bunting Magnetics, Co. in Chicago, Illinois as a magnet manufacturer. Today, the company is based in Bunting, Pennsylvania, has attained ISO 9001:2015 certification, and manufactures a full range of magnetics manufacturing with both ferrite and rare earth compounds for consumers around the world in industries spanning aerospace, automotive, medical, and industrial manufacturing. The company seeks to source magnetic material outside of China in conflict-free areas and performs 100% of manufacturing inside the United States. The company assists customers by providing engineering and application support to produce solutions, especially in the case of rare earth magnets.
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Alliance LLC
Cobalt Magnets
Manufacturer Overview
Alliance LLC is a supplier of permanent magnets and a manufacturer of customized magnetic assemblies for the automotive, industrial, medical, alternative energy, and communication industries. The company has several locations in the US, including Indiana, Kentucky, California, and Texas, and one outside the US, Mexico. Additionally, the company has ISO9001:2015 certification, and all suppliers within the Alliance LLC group are certified with ISO14001 Environmental Standards. Alliance LLC offers various neodymium discs and blocks for developmental and prototype projects. In addition to manufacturing custom designed magnetic assemblies, the company also has an extensive inventory of Ferrites, NdFeB, and Bonded magnets.
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MASTER MAGNETICS , Inc.
Samarium Cobalt (SmCo) Magnets
Company Overview
Master Magnetics, founded in the year 1976, and based in Florida, USA, is a manufacturer and supplier of a wide variety of magnets. Their product portfolio includes flexible magnetic material, rare earth magnets, neodymium magnets, ceramic magnets, samarium cobalt magnets, and alnico magnets. The company also offers custom cutting solutions, printing, and caring for flexible magnets services. The products are used in multiple industries which include automotive, hardware, cow or animal magnets, home improvement, and hobby magnets.
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CITIZEN FINEDEVICE CO.,LTD.
Samarium-cobalt sintered magnet
Manufacturer Overview
CITIZEN FINEDEVICE CO., LTD. is a Japanese manufacturer headquartered in Fujiyoshida, Yamanashi. It was established in 1959 through the merger of three Japanese companies: Citizen Miyota Co., Ltd., Citizen Finetech Co., Ltd., and Citizen Seimitsu Co., Ltd. The company specializes in precise metal parts for automobiles and other products, including quartz oscillators and ceramic components. Production processes are supported by various technologies, such as precise metal part machining, thin-film technology, and sealing technology, catering to different applications. Since 2019, CITIZEN FINEDEVICE, along with its holding company CITIZEN Group, has actively implemented Responsible Minerals Procurement Policy and Environmental Policy.
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Eclipse Magnetics
Samarium Cobalt Magnet Material
Manufacturer Overview
Eclipse Magnetics is a British ISO 9001 manufacturer of permanent magnets that was established in 1914, and has been operating as a subsidiary of Spear & Jackson Group since 2001. Based in Sheffield, the company produces over 20,000 magnetic products for various uses including lifting, clamping of assemblies, filtration or separation, detection, and heating. Their products are primarily used by clients in the automotive, food production, chemical processing, and metal fabrication sectors. Eclipse Magnetics also provides customization, design, engineering, and prototyping services for full magnetic assemblies or new products.
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ChenYang Technologies GmbH & Co. KG
SmCo Magnets
Manufacturer Overview
ChenYang Technologies GmbH & Co. KG is a manufacturer based in Germany, specializing in the development and production of quality magnetic sensors, Hall sensors, and magnetic measurement technology, established in 2002. There is a broad range of magnetic sensor products, including fluxgate sensors, and magnetoresistive sensors. The company's fluxgate sensors known for accuracy in measuring weak magnetic fields. ChenYang's magnetoresistive sensors are highly sensitive and used for various applications, including position detection, speed measurement, and contactless switching. These sensors find applications in several industries, such as automotive, aerospace, industrial automation, and renewable energy.
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Electron Energy Corporation
ULTRA-HIGH TEMPERATURE SAMARIUM COBALT MAGNETS
Manufacturer Overview
Electron Energy Corporation, founded in the year 1970, based in Pennsylvania, USA, is a manufacturer and supplier of rare earth magnets and special magnets. Their product portfolio includes permanent magnets, neodymium magnets, alnico, magnetic assemblies, and specialty magnets. The products are used in various industries which include aerospace, defense, medical, industrial, oil & gas, and telecommunications. The company also provides services that include prototyping, finite element analysis, engineering, research, and development with in-house manufacturing.
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Shin-Etsu Chemical Co., Ltd.
Magnet
Company Overview
Shin-Etsu Chemical Co., Ltd., founded in 1926 in Japan, is a manufacturer and distributor of synthetic chemicals and electronic materials, such as semiconductor silicon and rare earth quartz. The company offers a wide range of products, including silicone sealants and rubbers, as well as cellulose derivatives used in foods and pharmaceuticals, and rare earth magnets. The company has four core business segments, including infrastructure chemicals, electronics materials, silicone-based functional agents, and specialized engineering for the development of plant design, construction, and maintenance.
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Seiko Inn Sur
DIANET
Company Overview
Seiko Inn Sur was established in 1937 and headquartered in Chiba-shi, Japan is a manufacturer of electronic components, mechanical precision parts and printing devices. The company boasts an extensive and diversified product portfolio including miniature ball bearings, thermal printers, superior performance Co-Ni alloy products, and rare earth magnets among others. These products span a wide spectrum of industries and sectors including commercial printing companies, healthcare facilities, automotive, household appliances, and in the production of musical instrument accessories.
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Cobalt Magnet Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | ChenYang Technologies GmbH & Co. KG |
16.7%
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| 2 | Dura Magnetics |
8.3%
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| 3 | Electron Energy Corporation |
8.3%
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| 4 | MAGNETIC PRODUCTS, INC. |
8.3%
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| 5 | MASTER MAGNETICS , Inc. |
8.3%
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| 6 | Adams Magnetic Products Co. |
8.3%
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| 7 | Magnaworks Technology, Inc. |
8.3%
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| 8 | Shin-Etsu Chemical Co., Ltd. |
8.3%
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| 9 | CITIZEN FINEDEVICE CO.,LTD. |
8.3%
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| 10 | Magna Co., Ltd. |
8.3%
|
Derivation Method
The ranking is calculated based on the click share within the cobalt magnet page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- Shin-Etsu Chemical Co., Ltd.: 24,954
- Magna Co., Ltd.: 30
Newly Established Company
- Apex Magnets: 2003 (21 years ago)
- ChenYang Technologies GmbH & Co. KG: 2002 (22 years ago)
- Magna Co., Ltd.: 1984 (40 years ago)
Company with a History
- Shin-Etsu Chemical Co., Ltd.: 1926 (98 years ago)
- Adams Magnetic Products Co.: 1950 (74 years ago)
- CITIZEN FINEDEVICE CO.,LTD.: 1959 (65 years ago)
Cobalt Magnet Manufacturers in United States
*Including some distributors, etc.
- Dura Magnetics
- Adams Magnetic Products Co.
- Arnold Magnetic Technologies
- MAGNETIC PRODUCTS, INC.
- Magnaworks Technology, Inc.
- Bunting-DuBois
- Alliance LLC
- MASTER MAGNETICS , Inc.
- Apex Magnets
Global Distribution of Cobalt Magnet Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
|
9 | 60.0% |
Japan
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3 | 20.0% |
United Kingdom
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1 | 6.7% |
Germany
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1 | 6.7% |
China
|
1 | 6.7% |
List of Cobalt Magnet Products
55 products are listed.
Magna Co., Ltd.
Samarium cobalt magnet micromagnet
100+ people viewing
Last viewed: 5 hours ago
There are two types of rare earth magnets (rare earth magnets) and two types of neodymium magnets (Neoji ND-FE-B) and summer cobalt magnets (Samako...
Magna Co., Ltd.
Iron, Chrome, Cobalt magnet, etc.
100+ people viewing
Last viewed: 5 hours ago
A magnet that is cast by iron, chrome and cobalt as the main component. It has a characteristic that is easier to process than the Arnico magnet. C...
Magna Co., Ltd.
Iron / Chrome / Cobalt magnet
90+ people viewing
Last viewed: 5 hours ago
A magnet that is cast by iron, chrome and cobalt as the main component. It has a characteristic that is easier to process than the Arnico magnet. C...
Magna Co., Ltd.
Samarium cobalt magnet square type
40+ people viewing
Last viewed: 5 hours ago
There are two types of rare earth magnets (rare earth magnets) and two types of neodymium magnets (Neoji ND-FE-B) and summer cobalt magnets (Samako...
Magna Co., Ltd.
Samarium cobalt magnet diameter magnetic type
30+ people viewing
Last viewed: 5 hours ago
There are two types of rare earth magnets (rare earth magnets) and two types of neodymium magnets (Neoji ND-FE-B) and summer cobalt magnets (Samako...
Magna Co., Ltd.
Samarium cobalt magnet ring type
30+ people viewing
Last viewed: 5 hours ago
There are two types of rare earth magnets (rare earth magnets) and two types of neodymium magnets (Neoji ND-FE-B) and summer cobalt magnets (Samako...
Magna Co., Ltd.
Samarium cobalt magnet round type
40+ people viewing
Last viewed: 5 hours ago
There are two types of rare earth magnets (rare earth magnets) and two types of neodymium magnets (Neoji ND-FE-B) and summer cobalt magnets (Samako...
Magna Co., Ltd.
Samarium cobalt magnet bar type
40+ people viewing
Last viewed: 5 hours ago
There are two types of rare earth magnets (rare earth magnets) and two types of neodymium magnets (Neoji ND-FE-B) and summer cobalt magnets (Samako...
