A permanent magnet is a material that produces a persistent magnetic field without external power, used in moving coil mechanisms for precise motion control.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Weight | Varies by size and material | |
| Coercivity | 10-30 kOe (Hc) | |
| Dimensions | Custom per mechanism design | |
| Magnetic Strength | 1.0-1.4 Tesla (Br) | |
| Max Operating Temp | 80-200°C | |
| Corrosion Resistance | Coated (Ni/Zn/Epoxy) |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A precision electromechanical component that converts electrical current into rotational motion through electromagnetic interaction.
A precision electromechanical component that adjusts the position of camera lens elements to achieve optimal focus.
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NdFeB magnets offer higher magnetic strength and are cost-effective but have lower temperature resistance (typically up to 150°C). SmCo magnets provide better thermal stability (up to 350°C) and corrosion resistance but are more expensive and have slightly lower magnetic strength.
Degradation occurs through thermal demagnetization (exceeding Curie temperature), corrosion (especially in NdFeB), mechanical shock, and exposure to strong opposing magnetic fields. Proper material selection, coatings, and operating within specified parameters minimize degradation.
Yes, magnets can be engineered in custom shapes (arcs, blocks, rings), magnetic orientations (radial, axial), and grades to optimize magnetic field distribution, force output, and integration with coil and mechanical structures.
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