Special-Shaped NdFeB Magnets

Special-shaped NdFeB magnets have no fixed standard profiles. All are customized and processed in accordance with customers’ product structures and magnetic circuit designs. Complex shapes including steps, slots, chamfers, multi-curved surfaces, concave-convex positions and combined composite profiles can be realized. They fit special installation structures that standard magnets cannot adapt to, precisely match internal equipment space and optimize magnetic field output performance.

Performance Grades: Please refer to our grade performance datasheet.

Magnetization Direction: Freely customizable based on customers’ equipment magnetic circuits and assembly structures.

1. Material Composition

It is composed of neodymium metal, pure iron and ferroboron with the chemical formula Nd₂Fe₁₄B. Various metal elements are added in specific proportions and shaped via multiple precise metallurgical processes to deliver consistent and stable magnetic properties.

2. Product Classification

NdFeB magnets fall into two categories: sintered NdFeB and bonded NdFeB. All our special-shaped magnets are made of sintered NdFeB, widely known as the "King of Permanent Magnets". It outperforms bonded NdFeB drastically with powerful magnetic force, strong demagnetization resistance and long service life.

3. Manufacturing Process

Batching → Melting → Powder Making → Compaction → Sintering → Precision Special-Shaped Machining → Magnetization for finished products.

Special-shaped precision processing covers wire cutting, precision grinding, slotting, step machining, drilling, curved surface polishing and electroplating, with tightly controlled dimensional tolerances.

4. Surface Treatments

Common anti-rust coatings include zinc plating (color zinc, blue-white zinc, etc.), nickel plating, Ni-Cu-Ni composite coating and paint coating.

For harsh anti-corrosion requirements, optional special treatments are epoxy coating, electrophoresis, phosphating, gold plating, silver plating and chrome plating, suitable for humid, corrosive, outdoor and other complex working environments.

5. Application Fields

New energy motors, automation tooling fixtures, precision testing instruments, medical devices, smart wearable electronics, auto spare parts, special magnetic separation equipment and various non-standard magnetic assemblies.