Recommendation for Magnet Selection
1. Project Assessment
Begin by clarifying the application requirements:
● Application Scenario: Identify the purpose (e.g., industrial machinery, consumer electronics, medical devices).
● Force Requirements: Determine the necessary magnetic strength (e.g., high-precision motors require strong magnets like NdFeB)
● Temperature Range: Select materials based on operating temperatures. For example:
● N-series NdFeB: Suitable for ≤80°C.
● H/SH/UH/AH-series NdFeB: Higher temperature resistance (up to 230°C)
● Environmental Conditions: Consider corrosion risks (e.g., NdFeB requires nickel or epoxy coatings for humidity resistance)
2. Magnet Material Selection
Compare key magnetic materials (weakest to strongest):
1. Rubber Magnets: Low cost, flexible (ideal for signage, calendars, crafts)
2. Ferrite Magnets: Affordable, widely used in motors and speakers
3. AlNiCo Magnets: High-temperature tolerance (~500°C), stainless appearance (suitable for instruments)
4. Samarium Cobalt (SmCo): Heat-resistant (150–300°C), brittle but durable in harsh environments
5. Neodymium (NdFeB): Highest magnetic strength, cost-effective, but prone to oxidation (requires coatings)
3. Supplier Communication Strategy
When contacting clients (e.g., manufacturers or distributors):
● Key Questions to Ask:
● Do you provide customized shapes (e.g., discs, rings, blocks)?
● What certifications do your products hold (e.g., ISO, RoHS)?
● Can you share test reports for magnetic performance and durability?
● Sample Request: Request samples to verify quality and compatibility with your application.
● Cost and Lead Time: Compare pricing and delivery timelines across suppliers.