Osenc fornisce magneti a disco al neodimio per ingegneri, responsabili acquisti e costruttori che richiedono una forza di tenuta affidabile in una forma circolare compatta.
È possibile scegliere tra gradi N35–N56, diversi rivestimenti e magnetizzazione assiale o diametrale, con supporto alla campionatura prima della produzione in volume.
N35–N42 per impieghi generici. N52+ quando lo spazio è ridotto e la forza è determinante. N56 per la massima energia magnetica in dischi compatti.
Dry indoor: Nickel. Humid/splash: Epoxy/Plastic. Low friction: Teflon. Sensitive assemblies: Parylene. Decorative: Gold/Chrome.
Most disc magnets are axially magnetized; some assemblies require diametric magnetization for side-pole fields.
When selecting neodymium disc magnets, grade is only the starting point. For engineering use, the key values are maximum energy product (BHmax), remanence (Br), coercivity (Hcj), operating temperature, and the required magnetization direction.
Use the table to shortlist models by diameter, thickness, grade, coating, magnetization, tolerance, and estimated pull force. For pricing, choose either Samples or Bulk Quote—same product, two ordering paths.
| Product | Neodymium Disc Magnet (NdFeB / Rare Earth) |
| Forma | Disc (Diameter > Thickness) |
| Size Identification | Diameter × Thickness (e.g., D9 × 3 mm) |
| Available Grades | N35–N56 (high-temperature options available on request) |
| Direzione di magnetizzazione | Axial (common), Diametric/Radial (common); other directions available on request |
| Opzioni di rivestimento | Nickel, Zinc, Teflon, Gold, Chrome, Plastic, Epoxy, Parylene |
| Surface / Features | Smooth surface; high magnetic strength; compact size; large magnetic working area |
| MOQ | 1 piece |
| Lead Time | 7 days for regular shapes (fastest); 20 days for custom designs |
| Ordering Paths | Small Order (Sample/Pack) or Bulk Quote (same product, two ordering paths) |
| Applicazioni tipiche | Electric motors, speakers, sensors; consumer and industrial products; scientific and medical product design/manufacturing |
| Custom Capability | Custom sizes and thicknesses supported; coating and design options available to fit application requirements |
*Pull force values are reference estimates under ideal test conditions (clean, flat steel, direct contact, straight pull). Real holding depends on steel type, surface condition, air gaps, coatings, and alignment.
Pull force is a useful comparison number—but it’s not a promise in every assembly. The same magnet can behave very differently depending on the magnetic circuit and mounting surface.
What reduces holding in real use:
Air gaps (paint, tape, coatings, uneven surfaces).
Rough or thin steel, small contact area, misalignment.
Side loads/shear loads vs straight pull.
Rust, debris, and repeated impacts.
Practical rule: For critical holds, design with a safety factor and test the magnet in your actual setup.
Sensors, rotating assemblies, or when you need the strongest field across the diameter rather than thickness.
Contenuti correlati: Magnets & Magnetism
Osenc offers multiple coatings so your disc magnets match real environments—not just lab conditions.
Up next: sizes & tolerances—because fit matters as much as force in many builds.”
Disc magnets are typically specified by diameter × thickness. Standard tolerance works for most holding and closure uses. For alignment, sensing, or assemblies with press fits, tighter tolerances reduce rework and improve consistency.
What to send for accurate quoting:
Most standard NdFeB disc magnets are suited for typical ambient conditions. If your assembly sees elevated heat, confirm operating temperature early—temperature affects magnetic performance and long-term stability.
Suggerimento: Tell us your max operating temperature and duty cycle, and we’ll recommend a suitable material option.
Now let’s make selection easier with real-world use cases by industry.
Neodymium disc magnets are used when a compact round magnet needs to deliver strong holding, sensing, or alignment force in limited space.
The adhesive magnet has double-sided tape on its back. You can stick those magnets to a variety of surfaces. And there can be different types of double-sided tapes, which are designed for various applications.
Next: why Osenc—quality checks, traceability, and how we reduce procurement risk.
Written by Ben (Osenc) — focused on selection guidance for neodymium disc magnets used in industrial and commercial builds.
Specs are confirmed during quoting (size, grade, coating, magnetisation, tolerance). For critical loads, we recommend application testing and appropriate safety factors.
“Next: packaging & shipping—how we prevent chipping and unwanted attraction in transit.”
Neodymium disc magnets can chip and attract unexpectedly if packed poorly. We package to reduce collision, protect coatings, and keep parts separated for safer handling.
What we can align on:
Still deciding? The FAQ answers the most common buyer questions—including N56 availability.
Sì. Osenc può fornire magneti a disco fino al grado N56. Indichi le dimensioni (diametro × spessore), il rivestimento e la quantità per verificare la disponibilità e i tempi di consegna.
Per l’esposizione all’umidità, i rivestimenti epossidici o plastici sono scelte comuni; il Parylene è un’opzione per ottenere una protezione sottile e uniforme negli assemblaggi di precisione.
Nella magnetizzazione assiale, i poli si trovano sulle facce piane; in quella diametrale, sulle superfici laterali. La scelta più adatta dipende dalla direzione del campo richiesta.
Sì: invii un disegno tecnico oppure le dimensioni richieste, il grado, il rivestimento, la tolleranza e la quantità.
La forza di distacco è un valore di riferimento in condizioni ideali; la tenuta effettiva dipende dai traferri, dalle condizioni dell'acciaio, dalla direzione del carico e dall'allineamento.
Didn’t find what you were looking for? Contact us now and we’ll get back to you within an hour.
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