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NdFeB magnets
What are NdFeB magnets?
NdFeB (neodymium-iron-boron) magnets are the strongest common sintered rare-earth permanent magnets used in industry. Grades are labelled by energy product — for example N42 or N52 — roughly corresponding to MGOe. Arrowmatics Magnets supplies grades N35 through N52 for Malaysian factories and assemblers.
Is NdFeB N52 the strongest commercial grade?
Among widely stocked sintered NdFeB grades for general industry, N52 sits at the high end of the energy-product range (about 52 MGOe). Higher “N” numbers are stronger at room temperature but may have lower maximum operating temperature than specialty high-temp grades (e.g. H, SH, UH suffixes). We help match grade to duty cycle, temperature and coating — not just peak gauss on a datasheet.
Grades & energy product
Indicative room-temperature energy product bands. Confirm with your drawing and environment before ordering.
| Grade | Approx. energy product | Typical notes |
|---|---|---|
| N35 | ~35 MGOe | Cost-effective for general fixtures |
| N38–N40 | ~38–40 MGOe | Common OEM middle ground |
| N42 | ~42 MGOe | Popular motors / sensors balance |
| N45–N48 | ~45–48 MGOe | Higher pull for compact volumes |
| N50–N52 | ~50–52 MGOe | Top common sintered grades |
Coatings (NiCuNi, epoxy, zinc, etc.), shapes (blocks, discs, rings, arcs) and tolerances are quoted per RFQ. No published RM list prices.
Need high temperature or better corrosion resistance? See SmCo (samarium cobalt) magnets.
Where NdFeB is used
Motors & drives
Servo, BLDC and small industrial motors needing high flux in compact packages.
Sensors & switches
Hall sensors, reed actuation, position and proximity fixtures.
Jigs & holding
Magnetic fixtures, chucks and workholding for fabrication and assembly.
Speakers & acoustics
High-energy discs and rings for transducer OEMs.
Separators & assemblies
Rare-earth tubes and poles inside magnetic separator hardware.
Custom OEM kits
Matched sets cut to drawing for Malaysian manufacturers.
Request a quote
Three short fields. Photo optional. We aim to reply within 1–3 hours (Malaysia business hours).
Free 1-page selection checklist
What to measure, what to send and what to confirm before you order a magnetic separator.
WhatsApp for a written NdFeB quote
Send grade (or duty), dimensions, coating, quantity and any temperature limit. We reply with a written quote.
WhatsApp +60 12-211 2522