SmCo Magnets made of VACOMAX

Rare-Earth Permanent Magnets for High Temperature Applications

Samarium-Cobalt magnets made of VACOMAX® have particularly high coercivities with simultaneous high saturation polarization and excellent temperature and corrosion stability. 

Benefits:

  • Suitable for high temperature applications (depending on alloy up to max. 350 °C)
  • High corrosion resistance against aggressive media 
  • Usually no coating necessary
  • Low decrease of magnetic properties with increasing temperature due to high Curie temperature
  • Servo motors
  • Automotive applications (e.g. sensors...)
  • High end sport cars
  • Aviation

Magnets out of VACOMAX are produced by sintering using powder metallurgical processes. Depending on form, quantities, dimensions, tolerances and magnetic properties the magnets are produced out of bigger (isostatically) pressed blocks or die-pressed.

The magnetic properties are influenced by the alloy composition and the pressing method. Three different processes are possbile which are reflected in the alloy name with the letters HR, TP or AP. HR (High Remanence) refers to isostatically pressed magnets. In die-pressed design we differentiate between TP (Transverse-Pressed) and AP (Axial-Pressed)

When die-pressing, the powder particles are aligned by strong magnetic fields parallel (axial field for AP-grades) or perpendicular (transverse fields for TP-grades) to the direction of pressing depending on the geometry of the part. Isostatically or transverse-field pressed parts have an about 5 to 8 % higher remanence compared to axial-field pressed magnets. 

  • Servo motors
  • Automotive applications (e.g. sensors...)
  • High end sport cars
  • Aviation

Magnets out of VACOMAX are produced by sintering using powder metallurgical processes. Depending on form, quantities, dimensions, tolerances and magnetic properties the magnets are produced out of bigger (isostatically) pressed blocks or die-pressed.

The magnetic properties are influenced by the alloy composition and the pressing method. Three different processes are possbile which are reflected in the alloy name with the letters HR, TP or AP. HR (High Remanence) refers to isostatically pressed magnets. In die-pressed design we differentiate between TP (Transverse-Pressed) and AP (Axial-Pressed)

When die-pressing, the powder particles are aligned by strong magnetic fields parallel (axial field for AP-grades) or perpendicular (transverse fields for TP-grades) to the direction of pressing depending on the geometry of the part. Isostatically or transverse-field pressed parts have an about 5 to 8 % higher remanence compared to axial-field pressed magnets. 

Our VACOMAX Alloys made of Samarium-Cobalt

Btyp. [T]:  0.9 - 1.19  T
Br min. [T]:  0.85 - 1.15  T
HcB typ. [kA/m]:  660 - 875  kA/m
HcB min. [kA/m]:  600 - 844  kA/m
HcJ min. [kA/m]:  640 - 1990  kA/m
(BH) typ. [kJH/m3]:  160 - 262  kJ/m³
(BH) min. [kJH/m3]:  140 - 243  kJ/m³
Product Download Br typ.
[T]
Br min.
[T]
HcB typ.
[kA/m]
HcB min.
[kA/m]
HcJ min.
[kA/m]
(BH)max typ.
kJ/m3
(BH)max min.
kJ/m3
TK(Br
RT-100°C)
[%/°C]
TK(HcJ
RT-100°C)
[%/°C]
TK(Br
RT-150°C)
[%/°C]
TK(HcJ
RT-150°C)
[%/°C]
VACOMAX 145 S0.90.856606001990160140-0.04-0.14-0.045-0.15
VACOMAX 225 HR1.11.038207201590225190-0.03-0.18-0.035-0.19
VACOMAX 225 AP1.040.977606801590200170-0.03-0.18-0.035-0.19
VACOMAX 240 HR1.121.05730600640240200-0.03-0.15-0.035-0.16
VACOMAX 170 HR1.010.957557101195200170-0.04-0.21-0.045-0.22
VACOMAX 262 HR1.191.158758441750262243-0.04-0.26-0.04-0.255
VACOMAX 225 TP1.071.037907201590215190-0.03-0.18-0.035-0.19

Downloads

Rare-Earth Permanent Magnets VACODYM • VACOMAX

Product Information

Magnet Assemblies VACODYM • VACOMAX

Product Information

VACOMAX 262 HR

Product Information

Motor Optimization using High Performance Magnetic Materials and Technologies

Product Information

VACODYM 80X TP Dysprosium-reduced Magnets for Highest Performance

Product Information

VACODYM 131 TP / VACODYM 131 DTP for Low Temperature Applications

Product Information

Related Products

VACODYM

Neodymium-Iron-Boron magnets made of VACODYM have the highest energy density available today.

VACODYM

Magnet Assemblies

We deliver state-of-the-art magnet assemblies for various applications made of permanents magnets based on NdFeB or SmCo alloys.

Magnet Assemblies
Motor and Generator

Electric Drives

Whether you are looking for materials, permanent magnets, or complete stator and rotor assemblies, we provide a  comprehensive range of solutions for electric drives.

Electric Motors and Generator

Contact UsThink Global - Act Local

We are looking forward to support you.

Find Your Local Support

Contactform