Product Overview:
These block-shaped samarium cobalt magnets are sintered permanent magnets produced from a SmCo alloy. They are selected in applications where thermal stability and long-term reliability are priorities. Compared with many other magnet materials, SmCo retains magnetic strength at elevated temperatures and resists demagnetization under thermal cycling and mechanical stress.
The block form factor offers flat faces for easy integration into assemblies, whether bonded into housings, clamped in fixtures, or fitted into precision mechanical systems. Designers often choose this shape when they need predictable magnetic behavior in compact spaces.
Material and Performance
SmCo magnets are part of the rare-earth family and are distinguished by their combination of high coercivity (resistance to demagnetization) and relatively stable performance at elevated temperatures. These characteristics make them suitable for industrial motors, instruments, and control systems where other magnets may degrade.
- Composition: Sintered samarium cobalt (SmCo)
- Shape: Rectangular block
- Magnetization: Axial or custom direction per drawing
- Temperature Capability: Stable magnetic output up to ~250 °C; depends on grade and environment
- Corrosion Resistance: Cemented ceramic-like surface; coatings optional but generally not required for indoor/industrial use
Because SmCo is inherently more brittle than some other magnet types, geometry and tolerances should be matched to support structures to avoid stress concentrations during assembly.
Dimensional and Custom Options
Block magnets can be produced in a wide range of sizes, with tolerances controlled for precision fit:
- Length, width and thickness tailored to application requirements
- Magnetization direction specified by engineering design
- Optional edge chamfers or cutouts to assist in mechanical assembly
- Custom grades supplied for specific temperature or field requirements
Please provide CAD/STP files or detailed dimension sheets to confirm feasibility and final tooling notes.
Typical Applications
These block magnets are used where stable magnetic properties are required under mechanical and thermal stress:
- High-temperature motor and generator segments
- Industrial sensors and actuators
- Aerospace control modules
- Scientific instruments and measurement devices
- Precision positioning systems and magnetic fixtures
In these contexts, SmCo's stable flux, low irreversible loss and predictable behavior across a range of conditions reduce maintenance and failure risk.
Application Fields
High Quality Block SmCo Magnets
We support both small sample quantities for engineering evaluation and production supply for larger programs. Our standard process includes:
- Submit part specification or drawing
- Sample fabrication for fit and magnetic testing
- Production order with batch quality control
- Delivery with packing appropriate to size and magnet strength
Documentation such as dimensional inspection reports and magnetic property test data can accompany shipments to support your quality assurance procedures.
FAQ
Q: Can I choose a magnetization direction other than axial?
A: Yes - specify your preferred direction on the drawing; we produce accordingly.
Q: Are coatings necessary?
A: SmCo magnets have good inherent corrosion resistance. Coatings are optional depending on environment.
Q: Do you offer volume pricing and long-term contracts?
A: Yes - we support OEM and production supply arrangements with consistent quality and delivery.
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