Globa Elements Solutions

SmCo Disc Magnets

SmCo (Samarium Cobalt) disc magnets are widely used in aerospace (high-temperature sensors, navigation systems), medical equipment (MRI components, precision surgical instruments), industrial motors (high-temperature motors, generators), electronic devices (high-precision sensors, instruments), and energy sectors (wind turbine components) due to their excellent high-temperature resistance, corrosion resistance, and superior magnetic stability. Their outstanding high-temperature performance and resistance to demagnetization make them an ideal choice for critical technologies in extreme environments, particularly in applications exceeding 300°C where they are irreplaceable.

Description:

Samarium Cobalt (SmCo) Disc Magnets are high-performance rare-earth magnets known for their exceptional temperature stability, corrosion resistance, and strong magnetic properties. They are widely used in demanding applications where reliability under extreme conditions is required.

Specifications:

  • Material: Samarium Cobalt (SmCo)
  • Shape: Disc (Round)
  • Tolerance: ±0.1mm (standard)
  • Grade: SmCo26 or SmCo28 (high-energy grades)
  • Plating/Coating: Typically uncoated (inherent corrosion resistance) or optional gold/nickel plating
  • Magnetization Direction: Axial or Diametrical
  • Maximum Operating Temperature: Up to 350°C (depending on grade)

Key Features:

  • High-Temperature Performance – Maintains magnetic properties at extreme temperatures (up to 350°C).
  • Corrosion Resistance – Does not require coating for most environments (optional plating available).
  • High Magnetic Strength – Strong magnetic output with excellent stability.
  • Demagnetization Resistance – Superior resistance to demagnetization compared to other magnets.

Common Applications:

  • Aerospace & Defense – Sensors, actuators, and navigation systems.
  • Medical Devices – MRI components and surgical instruments.
  • Industrial Motors – High-temperature motors and generators.
  • Electronics – Precision instruments and sensors.
  • Energy Sector – Wind turbine generators and other high-performance systems.

SmCo Disc Magnets

The most popular grades for Samarium Cobalt Disc Magnets are YX-10, YX-18, YXG-26, YXG-28, YXG-28H, YXG-26M.
Part No.GradeSizeWeight(Oz)Magnetic(Face)Pull Force (Lbs)Surface Field (Gauss)
SM-D777YXG-26M6mm dia x 4mm thickness6mm dia0.664200
SM-D778YXG-26M10mm dia x 5mm thickness10mm dia2.653000
SM-D779YXG-26M2mm Dia x 2mm Thickness0.012mm Dia
SM-D780YXG-26M1/4″Dia x 1/10″ Thickness0.011/4″ Dia
SM-D781YXG-26M1/4″Dia x 1/4″ Thickness0.011/4″Dia
SM-D782YXG-26M1/2″ Dia x 1/16″ Thickness0.021/2″ Dia
SM-D783YXG-26M3/4″Dia x 3/16″ Thickness0.083/4″ Dia
SM-D784YXG-26M1″Dia x 1/8″ Thickness0.081″ Dia
SM-D785YXG-26M1″ Dia x 3/8″ Thickness0.141″ Dia

Inquiry to GES Materials

Please describe the product(s) for which you would like more information/quotation.Items marked with an asterisk(*) are required.