Bonded NdFeB Magnet Properties

Name: Bonded NdFeB Magnet Properties
Brand: POLE MAGNET

This page lists the typical magnetic properties of bonded NdFeB magnets produced by injection and compression moulding, so you can compare them with sintered NdFeB and ferrite for your design.

Bonded NdFeB offers better temperature stability than ferrite at small sizes and far better shape freedom than sintered magnets, at a moderate cost between ferrite and sintered NdFeB.

Key Specifications

Specification	Value
Injection moulded	Br 4.5 – 6.5 kGs, (BH)max 4 – 8 MGOe
Compression moulded	Br 6.0 – 8.0 kGs, (BH)max 8 – 10 MGOe
Max working temp	100 – 150 °C depending on binder
Density	5.0 – 6.2 g/cm³
Features	Isotropic or anisotropic, multi-pole capable

All magnets are produced to order. Please provide grade, dimension (or drawing), magnetization direction, coating and quantity for quotation. Email sales@polemagnet.com or use the inquiry form — we reply within 24 hours.

FAQ

Bonded NdFeB Magnet Properties — FAQ

How does bonded NdFeB compare with ferrite?

Bonded NdFeB is roughly 2–3 times stronger than ferrite for the same size, and allows more complex shapes, at a higher material cost.

What maximum temperature can bonded NdFeB withstand?

Typically 100–150 °C depending on the polymer binder. For higher temperatures, sintered NdFeB, SmCo or AlNiCo are more suitable.

Do you provide free samples for testing?

Yes, sample orders are welcome. Send your drawing or specification together with the intended application so our engineers can recommend the correct grade, magnetization direction and coating before we prepare samples.

Can the factory produce to my drawing with special tolerances?

Yes. We machine, grind and inspect to customer drawing tolerances. For sintered NdFeB the standard machining tolerance is ±0.05 mm and can be tightened to ±0.02 mm with diamond grinding where the geometry allows.