N48SH Neodymium Arc Magnets For Motor

Our N48SH Neodymium Arc Magnets are high-performance NdFeB segments designed specifically for permanent‑magnet motors, generators, and magnetic couplings where both strong magnetic output and elevated temperature tolerance are required. With precision arc‑shaped geometry and premium N48SH alloy, these magnets deliver stable flux even under demanding thermal and rotational conditions, making them an excellent choice for EV motors, industrial drives, and high‑efficiency rotor designs.

• Material: Sintered Nd–Fe–B (Neodymium Iron Boron)
• Grade: N48SH - a high‑coercivity grade capable of stable operation up to ~150 °C.
• Shape: Arc / Segment - customized inner/outer diameter, segment angle, and thickness per motor design needs.
• Magnetization Direction: Radial, axial or multi‑pole (as per design requirement)
• Surface Coating / Finish: Nickel (Ni), Zinc (Zn), Epoxy or alternative coatings - selected based on environmental conditions and corrosion resistance needs.
• Tolerance & Customization: Dimensional and angular tolerances controlled strictly; custom sizes accepted per OEM drawing / motor design.

 

 

• High Thermal Stability: Thanks to the N48SH grade, these arc magnets maintain magnetic flux up to ~150 °C, reducing risk of demagnetization in high‑temperature motor environments (e.g., high-speed motors, EV drives). dgcourage.com+1
• Optimized Arc Geometry: The curved, segmented shape reduces cogging torque in motors, suppresses vibration and noise, and improves motor smoothness - crucial for high‑performance or precision‑demanding applications. himagnet.com+1
• Flexible Magnetization & Customization: Whether for radial‑flux or axial‑flux motor designs, we support varied magnetization schemes and custom segment dimensions to match stator/rotor geometry.
• Wide Use Cases: Suitable for permanent‑magnet synchronous motors (PMSM), brushless DC motors (BLDC), generators, industrial drives, magnetic couplings - particularly those subject to heat, high torque load or compact design constraints.

• Bulk Order & OEM Supply Ready: We are equipped to handle large batch production, offering consistent magnetic performance and tight dimensional accuracy across orders - ideal for motor manufacturers and system integrators.
• Custom Magnet Orders Supported: Submit your rotor/stator design drawing and we'll tailor arc magnet segments (size, magnetization, coating) to suit your exact engineering specifications.
• Quality Assurance & Traceability: Every batch undergoes magnetic property testing (remanence, coercivity), dimensional inspection, and coating adhesion verification. We provide test reports and batch tracking for OEM quality control.
• Reduced Motor Noise and Improved Efficiency: By using curved arc magnets optimized for motor design, you can minimize cogging torque and achieve smoother rotation - valuable for EV motors, appliances, and precision machinery.

Arc magnets are individually wrapped with non‑magnetic separators to prevent magnetic attraction during transport. For bulk orders, magnets are packed in magnet‑safe crates or shielding boxes, labeled with batch number and QC report. Customized tray packaging is available to support assembly‑line integration and inventory management.

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