Rare-Earth NdFeB Permanent Magnet – H Grade

From: | Author:selina | Release time:2025-09-30 | 22 Views | Share:

Core Performance Parameters

Remanence (Br): approx. 1.1–1.3 T — Provides strong magnetic output with high flux density even in limited space.
Intrinsic Coercivity (Hcj): ≥ 17 kOe — Excellent resistance to demagnetization, ensuring stable performance under external magnetic interference and moderate temperature conditions.
Maximum Energy Product (BHmax): approx. 280–360 kJ/m³ — High energy density per unit volume, offering superior magnetic performance.
Maximum Operating Temperature: up to 120 ℃ — Higher thermal resistance compared to N and M grades, suitable for long-term operation in medium-temperature environments.

N Grade: Max operating temp ~80 ℃; ideal for low-temperature and general consumer products (e.g., small magnetic parts, toys), but limited thermal resistance.
M Grade: Max temp ~100 ℃; suitable for applications requiring slightly higher temperature stability, such as small motors and sensors.
H Grade: Balanced in magnetic performance and thermal stability, withstands up to 120 ℃. Offers cost-effectiveness and reliability, making it the most widely used mid-to-high grade option.
SH Grade: Withstands up to 150 ℃; ideal for demanding environments, though more costly.

Balanced performance-to-cost ratio: Combines high magnetic energy with reliable thermal stability.
Stable and reliable: Strong anti-demagnetization capability ensures long-term operation in medium-temperature conditions.
Wide applicability: Covers automotive, industrial, consumer electronics, and medical fields, making it one of the mainstream market choices.

Automotive motors: Electric windows, power seats, EPS (Electric Power Steering) systems — strong magnetism with stable thermal performance.
Home appliance motors: Air-conditioner compressors, washing machines, vacuum cleaners — enabling high-efficiency and energy-saving operation.