Technomag Inc. manufactures Sintered Samarium-Cobalt magnets in various sizes and specifications. We meet the highest quality standards set by MMPA (Magnetic Materials Producers Association).
Applications
Sintered Samarium Cobalt (SmCo) magnets are widely used in applications that demand high magnetic strength, thermal stability, and resistance to corrosion. These rare-earth magnets are particularly suited for environments with extreme temperatures, making them ideal for aerospace, military, and automotive industries. They are commonly employed in precision motors, actuators, sensors, and magnetic couplings, where reliable performance is essential under harsh conditions. Additionally, their excellent magnetic properties and stability make them valuable in medical devices such as MRI systems and surgical instruments, as well as in high-end audio equipment and scientific instrumentation.
Key Features
- Material Composition: Samarium and cobalt alloy (primarily SmCo₅ or Sm₂Co₁₇), often with iron, copper, and zirconium for property enhancement.
- Manufacturing Methods: Powder metallurgy process involving compaction, sintering, heat treatment, and machining.
- Magnetic Strength: High magnetic strength, though generally lower than NeFeB; offers a high energy product (BHmax) and excellent thermal stability.
- Shapes & Complexity: Typically limited to simple shapes; complex geometries achieved via post-sinter machining.
- Mechanical Properties: Very hard and brittle; even more prone to cracking than NeFeB, requiring careful machining and handling.
- Magnetic Orientation: Strongly anisotropic; magnetic alignment is achieved during compaction in a magnetic field.
- Surface Protection: Inherently corrosion-resistant; usually does not require protective coatings, especially Sm₂Co₁₇ types.