Temperature Limits: Avoid exceeding 350°C during operation to prevent irreversible demagnetization.
Mechanical Handling: SmCo magnets are fragile; use non-magnetic tools when installing to prevent chipping or cracking.
Magnetic Interference: Keep away from pacemakers, credit cards, and sensitive electronic devices as the magnetic field is strong.
Storage: Store in a dry environment to minimize the risk of oxidation, but additional coating is not usually required. This product combines advanced material science with rugged engineering design to provide unmatched performance for high-tech industries.
FAQ
Q1: Can SmCo magnets be customized to specific shapes and sizes?
A1: Yes, SmCo magnets are highly customizable. We offer a range of standard shapes (discs, rings, blocks, cylinders) and can also produce custom geometries through precision machining. Key considerations include:
Tolerance: ±0.05 mm for most applications (tighter tolerances available upon request).
Surface treatment: Nickel plating, epoxy coating or passivation for corrosion protection.
Magnetization direction: Radial, axial or multi-pole configuration to meet your design needs.
Example use case: A medical device manufacturer requested a custom 2 mm thick, diametrically magnetized SmCo ring magnet for a miniature MRI component.
Q2: How do SmCo magnets perform in high temperature industrial environments?
A2: SmCo magnets perform well in extremely hot environments. Depending on the grade (e.g. Sm2Co17 or SmCo5):
Continuous operation: Up to 300°C (depending on grade).
Short-term exposure: Some grades can withstand 500°C without irreversible demagnetization.
Retention: May retain ≥95% magnetization after 1,000 hours at 200°C.
Application example: A steel mill uses SmCo magnets in high-temperature sensors to monitor molten metal flow.
Q3: Are SmCo magnets suitable for underwater or corrosive environments?
A3: Yes, SmCo magnets are inherently corrosion resistant due to their cobalt-rich composition. However:
Saltwater/acid exposure: Extended immersion may require a protective coating (e.g., nickel plating).
Chemical resistance: Resistant to most solvents, but may react to strong acids (e.g., hydrochloric acid).
Example solution: A subsea sensor company added a triple nickel-copper-nickel plating to SmCo magnets for use in offshore drilling equipment.
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