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RECOMA® 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.

RECOMA grades 33E & 35E provide record-breaking performance under extreme conditions — from motorsports to aerospace.

Key Benefits

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

RECOMA material is DFARS compliant and meets ITAR regulations.

Samarium Cobalt vs Neodymium Iron Boron

RECOMA® Samarium Cobalt 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®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
 
18
26HE
30
30 S
32
32 S
33E
RECOMA®
Grade
BH max Br Hcb Hcj Reversible Temp. Coef. of Induction

Max 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
26HE 215 27 1.07 10.7 800 10.1 2000 25 -0.035 350
30 230 28.9 1.12 11.2 820 10.3 1600 20 -0.035 250
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 11.6 867 10.9 2100 26.4 -0.035 350
35E 255 32 1.17 11.7 860 10.8 2100 23 -0.035 350

RECOMA SmCo Samarium Cobalt