Technical Data
N35EH Technical Specifications
| Parameter | Value |
|---|---|
| Remanence (Br) | 11.7–12.1 kGs (1.17–1.21 T) |
| Coercive Force (HcB) | ≥10.9 kOe (≥867 kA/m) |
| Intrinsic Coercivity (HcJ) | ≥30 kOe (≥2388 kA/m) |
| Energy Product (BHmax) | 33–36 MGOe (263–287 kJ/m³) |
| Max Operating Temperature | 200°C |
| Temperature Coefficient (Br) | -0.12 %/°C |
| Temperature Coefficient (HcJ) | -0.45 %/°C |
| Density (typical) | 7.5 g/cm³ |
| Vickers Hardness (typical) | 550–650 HV |
Values per IEC 60404-5 / GB/T 13560. Actual production values fall within the range quoted; batch-specific BH-curve data is provided on every certificate of conformance.
Overview
What Is N35EH?
N35EH is specified where operating conditions push beyond what any other NdFeB family can handle, 200°C continuous, with very high margin against demagnetization. Applications include downhole oil-and-gas tools, high-temperature industrial actuators, and specialist instrumentation.
Applications
Where N35EH Is Used
N35EH is specified across the following application categories. Each links to a full application brief with design requirements and recommended grade combinations.
Industrial Automation
NdFeB magnets for stepper motors, servo drives, linear actuators, magnetic couplings, and factory automation equipment across European and North American manufacturing.
EV Motors
High-performance NdFeB magnets for electric vehicle traction motors, auxiliary drives, and e-axle systems, with the temperature stability and flux density required for continuous high-torque service.
Surface Protection
Recommended Coatings for N35EH
Coating choice is driven by operating environment and assembly method. For N35EH, the typical options are:
See our NdFeB Coatings Guide for a full comparison with salt spray data and decision framework.
Specifying
Design Considerations When Specifying N35EH
Key insight
Export controls apply rigorously to this grade's heavy rare earth content, factor licensing lead time into the program schedule.
FAQ
Frequently Asked Questions
What is N35EH NdFeB magnet?
+
N35EH is specified where operating conditions push beyond what any other NdFeB family can handle, 200°C continuous, with very high margin against demagnetization. Applications include downhole oil-and-gas tools, high-temperature industrial actuators, and specialist instrumentation.
What is the maximum operating temperature of N35EH?
+
N35EH sintered NdFeB is rated for continuous operation up to 200°C. This is the practical upper limit before thermal demagnetization begins to affect performance. For a safety margin, design for a working temperature at least 20–30°C below the maximum rating.
What is the BHmax of N35EH?
+
N35EH delivers an energy product (BHmax) in the range of 33–36 MGOe (263–287 kJ/m³). This is the maximum magnetic energy density the grade can produce, measured according to standard IEC 60404-5 magnetic testing.
What applications use N35EH magnets?
+
N35EH is typically specified for Industrial Automation, EV Motors. The grade's combination of 33–36 MGOe (263–287 kJ/m³) energy product and 200°C maximum service temperature determines its fit for any given motor or actuator design.
Request a Quote for N35EH Magnets
Factory-direct supply from Mainrich International. IATF 16949 certified production network, EU-office support from London, 97% on-time delivery. Share your dimensions, quantity, and target application — we will quote within two business days.