Samarium Cobalt Magnets

Arnold Magnetic Technologies’ industry leading RECOMA Samarium Cobalt (SmCo) magnet materials break the performance barriers of other magnetic components. Offering several operational advantages, our top-of-the-line RECOMA 35E is currently the most power dense samarium cobalt magnet on the market, and is specifically created for the most demanding environments, including high speed (100,000 RPM+), high temperature (above 150°C) and highly corrosive environments, such as aerospace, motorsports, and automotive industries. As the market leader in high performance SmCo, Arnold Magnetic Technologies continues to push the boundaries of magnetic performance, while maintaining an integrated and sophisticated supply chain.

All locations in our RECOMA product’s supply chain are registered with ITAR and can adhere to DFAR clauses.

RECOMA GRADES 33E & 35E PROVIDE RECORD-BREAKING PERFORMANCE UNDER EXTREME CONDITIONS — FROM MOTORSPORTS TO AEROSPACE.

KEY BENEFITS OF SAMARIUM COBALT MAGNETS

• Performance at temperature extremes – RECOMA samarium cobalt magnetic materials offer the world’s highest stability and magnetic output at elevated temperatures.
• Broad-based source of supply – Unlike neodymium (Nd) magnets, which need high levels of rare dysprosium (Dy) to function at moderate temperatures, SmCo magnets use materials that are more widely available and are inherently stable at temperatures well above the Curie point of NdFeB. This makes SmCo pricing more stable and less prone to market changes.
• Breadth of applications – Use Arnold’s RECOMA 35E to achieve higher performance and efficiency in your automotive, motorsports, aerospace, defense, or industrial application.
• Custom properties – Since we are an integrated supplier, we can adjust the composition of your material for performance at extreme temperatures up to 550°C, or for much lower temperature coefficients for sensitive applications.

Arnold’s custom SmCo magnets are made to your specification and project requirements.

RECOMA samarium cobalt grades 33E and 35E are ideally suited to the following applications:

• High Efficiency Rotors
• Drive Components
• Electric Motors
• Couplings
• Generators
• Sensor Systems
• Actuators
• Energy Recovery Systems

All locations in our RECOMA product’s supply chain are registered with ITAR and can adhere to DFARS clauses.

RECOMA® SAMARIUM COBALT MAGNETS GRADES AND PROPERTIES AT-A-GLANCE

Available in standard grades 18-35E, custom grades for high temperature and low reversible temperature coefficient, and in any shape needed for your application.

RECOMA® GradeBH maxBH maxBrBrHcbHcbHcjHcjReversible Temp. Coef. of InductionMax Oper Temp*

kJ/m 3

MGOe

T

kG

k A/m

kOe

k A/m

kOe

%/K

°C

18

143

18

0.87

8.7

650

8.2

2400

30

-0.045

250

20

160

20.1

.90

9.0

700

8.8

2400

30

-0.045

250

22

175

22

.94

9.4

730

9.2

2400

30

-0.045

250

25

200

25.1

1

10

775

9.7

2400

30

-0.050

250

24HE

195

24.5

1.02

10.2

765

9.6

2000

25

-0.035

350

26

205

25.8

1.04

10.4

765

9.6

2000

25

-0.035

350

26HE

215

27

1.07

10.7

800

10.1

2000

25

-0.035

350

28

225

28.3

1.1

11

800

10.1

2000

25

-0.035

350

28HE

225

28.3

1.1

11

805

10.1

2000

25

-0.035

350

30

230

28.9

1.12

11.2

820

10.3

1600

20

-0.035

250

30HE

230

28.9

1.12

11.2

830

10.4

2000

25

-0.035

350

30 S

235

29.5

1.12

11.2

845

10.6

2150

27

-0.035

350

32

240

30.2

1.15

11.5

835

10.5

1350

17

-0.035

250

32 S

245

30.8

1.15

11.5

850

10.7

1790

22.5

-0.035

250

33E

251

31.5

1.16

11.6

865

10.9

2100

26.4

-0.035

350

35E

265

33.3

1.19

11.9

880

11.1

1800

23

-0.035

300

SAVE TIME – COLLABORATE EARLY

To learn more about our Samarium Cobalt high temperature magnets, and whether SmCo is the right material for your custom assembly, contact a specialist today.