Solutions

Magnetic components for demanding applications

Sintered and bonded NdFeB solutions and magnetic assemblies developed for motors, sensors, industrial equipment and critical applications.

01 — Sintered

Sintered NdFeB magnets

Produced by powder metallurgy with Nd₂Fe₁₄B as the main magnetic phase, they have the highest magnetic properties of any permanent material and the best cost-performance ratio available today. Remanence up to 1.45T, intrinsic coercivity up to 2.786 kA/m.

Standard grades N, M, H, SH, UH, EH and AH — 80°C to 230°C.

Grain boundary diffusion (GBD) grades: more coercivity with fewer heavy rare earths.

Block, cylinder, ring, segment and custom geometry formats.

Grade selection guide — sintered NdFeB

Grade	Process	BHmax (MGOe)	Hcj (kOe)	Tw (°C)
N35–N56	Standard	35–56	12–14	70–80
35M–56M	Standard	35–56	14–15	100
35H–54H	Standard	35–54	17–20	120
35SH–54SH	Standard	35–54	20–25	150
28UH–52UH	Standard	28–52	25–30	180
28EH–50EH	Standard	28–50	30–33	200
28AH–45AH	Standard	28–45	33–35	230
38AH–45AH	Grain boundary diffusion	38–45	33–35	230
40EH–50EH	Grain boundary diffusion	40–50	30–33	200
48UH–52UH	Grain boundary diffusion	48–52	25–30	180
50SH–54SH	Grain boundary diffusion	50–54	20–25	150
52H–54H	Grain boundary diffusion	52–54	17–20	120
56M	Grain boundary diffusion	56	14	100

Grain boundary diffusion (GBD) reduces dysprosium/terbium use by 30% to 50% compared to the standard process, while maintaining the required coercivity.

Surface treatment options

Coating	Thickness	Salt spray	Max. temp.	Performance
Zinc	5–10 µm	24–48 h	≤160°C	Good corrosion resistance, cost-effective
NiCuNi	10–20 µm	48–96 h	≤200°C	Excellent corrosion, thermal and humidity resistance
PVD Aluminum	5–15 µm	48–96 h	≤200°C	Superior corrosion, thermal and humidity resistance
Phosphate	1–3 µm	12–24 h	≤120°C	Temporary protection, low cost
Epoxy	10–30 µm	96–168 h	≤180°C	Excellent corrosion resistance, non-conductive
Multilayer	Variable	168–500+ h	Variable	Maximum corrosion resistance

Common applications

Sensors, micromotors, multipole components, actuators and parts with complex geometries.

02 — Bonded

Bonded NdFeB magnets

Suited for parts requiring dimensional precision, magnetic uniformity and complex shapes. The magnetic powder, coated with high-temperature resistant plastics, allows single-piece molding and multipole magnetization.

High dimensional stability and batch-to-batch consistency.

Complex geometries with multipole magnetization.

Direct integration into subassemblies and structural parts.

Grade	Br (T)	Hcj (kA/m)	BHmax (kJ/m³)	Tw
BNP-6	0.55–0.60	800–1200	48–56	≤100°C
BNP-8	0.60–0.65	800–1200	64–72	≤100°C
BNP-10	0.65–0.70	800–1200	80–88	≤120°C
BNP-12	0.70–0.75	800–1200	88–96	≤120°C
BNP-8H	0.60–0.65	1200–1600	64–72	≤120°C
BNP-10H	0.65–0.70	1200–1600	80–88	≤140°C
BNP-10SR	0.65–0.70	1600–2000	80–88	≤160°C

SR = high coercivity grades for high-temperature applications. Custom grades available on request.

03 — Assemblies

Complete magnetic assemblies

Functional components combining magnetic materials with metals and technical parts, ready to integrate.

Rotors and stators

BLDC motors, servo motors and stepper motors with precise placement and dynamic balancing.

Sensor rings

Multipole components for position sensors, speed sensors and rotary encoders.

Couplings

Hermetically sealed torque transmitters for pumps and mixers.

Separators and filters

Bar magnets and magnetic grids to remove ferrous contaminants in production lines.

Linear motors

Magnet tracks for precision motion control in CNC and semiconductor equipment.

Audio and VCM

Ring magnets and pot cores for speakers, professional audio and autofocus.