BRM, a high-tech enterprise backed by CISRI (China Iron & Steel Research Institute), is proud to announce its participation in Coiltech North America 2026, one of the premier trade fairs for coil winding, electric motors, and magnetic materials. The event takes place on June 10–11, 2026 at the Coiltech Center in Detroit, Michigan, USA. BRM will be showcasing its latest advances in sintered NdFeB (Neodymium-Iron-Boron) permanent magnets at Booth M05.
As industries worldwide push for higher energy efficiency, miniaturization, and power density in electric motors and generators, the demand for high-performance rare-earth magnets has never been greater. BRM's sintered NdFeB magnets deliver the magnetic performance required for next-generation applications, from electric vehicle traction motors to direct-drive wind turbine generators and industrial servo systems.
Product Range and Performance Grades
BRM manufactures a comprehensive range of sintered NdFeB magnet grades to meet diverse application requirements. The following table outlines the key performance parameters across standard grades:
| Grade | Remanence Br (T) | Coercivity Hcj (kA/m) | Max Energy Product (BH)max (kJ/m³) | Max Operating Temp (°C) |
|---|---|---|---|---|
| N52 | 1.44–1.48 | ≥ 876 | 398–422 | 80 |
| N48H | 1.38–1.42 | ≥ 1353 | 366–390 | 120 |
| N45SH | 1.33–1.37 | ≥ 1592 | 342–366 | 150 |
| N40UH | 1.28–1.32 | ≥ 1990 | 302–326 | 180 |
| N38EH | 1.24–1.28 | ≥ 2387 | 286–310 | 200 |
| N35AH | 1.18–1.22 | ≥ 2626 | 263–287 | 220 |
Each grade is engineered for a specific operating envelope. Standard N series grades (N35–N52) offer the highest magnetic energy for room-temperature applications, while H, SH, UH, EH, and AH series grades progressively sacrifice some remanence for significantly higher intrinsic coercivity and thermal stability.
Custom Coating Solutions for Harsh Environments
Sintered NdFeB magnets are inherently susceptible to corrosion due to their porous microstructure and rare-earth-rich grain boundaries. BRM offers a full spectrum of protective coatings to ensure reliable long-term performance in demanding environments:
| Coating Type | Thickness (µm) | Salt Spray Resistance (hrs) | Typical Applications | Relative Cost |
|---|---|---|---|---|
| Zinc (Zn) Plating | 8–15 | ≥ 24 | Consumer electronics, sensors | 1× (baseline) |
| Nickel-Copper-Nickel (NiCuNi) | 20–40 | ≥ 72 | Motors, generators, automotive | 1.5–2× |
| Epoxy Resin Coating | 20–50 | ≥ 200 | Wind turbines, marine, pumps | 2–3× |
| PTFE (Teflon) Coating | 15–30 | ≥ 500 | Chemical processing, food equipment | 3–4× |
| Everlube / Solid Lubricant | 10–25 | ≥ 100 | Sliding friction assemblies, bearings | 2–3× |
| Aluminum Ion Vapor Deposition (Al/IVD) | 15–25 | ≥ 1000 | Aerospace, defense, high-corrosion | 4–5× |
Coating selection depends on the operating environment, cost budget, and dimensional tolerances. BRM supports rapid prototyping of coated samples, allowing customers to validate corrosion resistance before committing to mass production.
Applications Across Key Industries
Sintered NdFeB magnets have become the enabling technology for high-efficiency electric machines and magnetic systems. BRM supplies custom-shaped magnets for a broad range of industries:
| Industry | Typical Application | Recommended Grade | Coating Preference | Annual Volume (typical) |
|---|---|---|---|---|
| Electric Vehicles | Traction motor rotor magnets | N48SH / N45UH | NiCuNi + Epoxy | 50k–500k units |
| Wind Energy | Direct-drive generator poles | N45SH / N40UH | Epoxy + Al/IVD | 1k–20k segments |
| Industrial Automation | Servo motor rotors | N48H / N45SH | NiCuNi | 10k–200k units |
| Medical Equipment | MRI gradient coils, actuators | N40UH / N38EH | NiCuNi + PTFE | 500–5k units |
| Consumer Electronics | Speakers, vibration motors, sensors | N52 / N50 | Zn / NiCuNi | 100k–50M units |
| Aerospace & Defense | Actuators, magnetic bearings, sensors | N38EH / N35AH | Al/IVD | 200–5k units |
BRM's engineering team works closely with OEMs to optimize magnet geometry, grade selection, and coating specifications for each unique application, balancing performance requirements with cost targets.
Manufacturing Capabilities and Quality Assurance
Backed by decades of research and production experience from CISRI, BRM operates a vertically integrated NdFeB manufacturing facility covering the complete production chain:
Melting and Strip Casting: Alloy preparation with precise composition control using advanced strip-casting technology for uniform columnar grain structure.
Hydrogen Decrepitation (HD) and Jet Milling: Controlled particle size distribution (3–5 µm) via hydrogen decrepitation and inert-gas jet milling systems.
Press and Sinter: Isostatic pressing up to 300 MPa followed by vacuum sintering at 1060–1100 °C, achieving > 95% theoretical density.
Precision Machining: Multi-axis CNC grinding, wire EDM, and slicing for tight dimensional tolerances (IT6–IT8 on critical features).
Surface Coating: Automated coating lines with inline quality inspection for thickness, adhesion, and pinhole detection.
Magnetization: Custom multi-pole magnetization fixtures for arc, segment, ring, and block geometries.
Quality assurance includes 100% magnetic flux testing, dimensional inspection, and salt spray testing on every production batch. BRM holds ISO 9001:2015 and IATF 16949 certifications, ensuring consistent quality for automotive and industrial applications.
Visit BRM at Coiltech 2026
Coiltech North America 2026 is the ideal venue to connect with industry professionals across the electric motor, coil winding, and magnetic materials supply chain. BRM invites all attendees to visit Booth M05 to:
Review physical samples of sintered NdFeB magnets across multiple grades, coatings, and geometries.
Discuss technical requirements with BRM's magnetic materials engineers, who bring hands-on experience from R&D through volume production.
Receive a preliminary quotation for custom magnet designs within 48 hours of specification submission.
Explore partnership opportunities for long-term supply agreements with engineering and quality support.
Event Details:
Show: Coiltech North America 2026
Dates: June 10–11, 2026
Venue: Coiltech Center, Detroit, Michigan, USA
BRM Booth: M05
Contact: sales1@brm-metal.com
Phone: +86-021-5512 8901
Don't miss this opportunity to discover how BRM's advanced sintered NdFeB magnet solutions can power your next-generation products. We look forward to welcoming you at Booth M05!