Custom magnet paths for brushed and BLDC motor programs, including EV traction and industrial drives. Mainrich reviews the magnetic circuit, operating temperature, corrosion exposure, and demagnetization margin before defining the part.
Mainrich supplies motor magnet deliverables from prototype sets to production lots, with geometry, material, magnetization, and inspection tied to the same drawing review.
| Arc segments | NdFeB / SmCo / ferrite |
|---|---|
| Multipole rings | Specified pole count + pattern |
| Stator options | Bonded + sintered routes |
| Rotor deliverables | Magnet + sleeve / fixture |
| Assembly route | Pre-glued segments or ready-to-integrate sets |
| NdFeB range | N30 to N58 |
| Temperature classes | Through AH / 230C |
| Coating paths | NiCuNi / epoxy / parylene |
| Magnetization | Magnetize after assembly when specified |
| Magnetic inspection | Matched sets + 100% flux mapping route |
Matched sets support stable torque and reduced cogging or torque ripple. Bonded magnet and sleeve or fixture routes can be delivered ready for integration.
Review servo and PMSM rotor magnetsMagnet selection is driven by required torque density, operating temperature, corrosion environment, and demagnetization margin. The compact answer is not always the same material path.
For motor programs, consistency matters as much as peak strength. Mainrich connects mechanical fit, magnetization, magnetic inspection, and release documentation.
Arc geometry, ring pole count, fit, operating temperature, corrosion exposure, and demagnetization margin are reviewed before the part moves into production.
For bonded rotor assemblies, the mechanical stack-up can be completed before final magnetization. Pole count and magnetization pattern remain tied to the drawing.
A 100% flux mapping route verifies magnetic output for the agreed release plan. Flux matching, batch consistency, and traceability records support stable motor performance.
Grade confirmation and magnetic property reporting for Br, Hcj, and BHmax are available as agreed. Coating adhesion or corrosion-performance verification is supported when required, with RoHS and REACH documentation upon request. Automotive IATF 16949 work runs through the network's certified plant.
Send the geometry, operating temperature, environment, and volume. An engineer responds within 1 business day. Pricing follows within 2 business days.