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Magnetic Appliances

NEODYMIUM-IRON-BORON MAGNETS NEOMAX®
NEOMAX neodymium-iron-boron magnets
Overview

NEOMAX® magnets,comprised primarily of iron, boron, and rare earth elements (principally neodymium), are the worlds strongest and highest-performance permanent magnets. NEOMAX® has made possible smaller and more advanced electronic devices than everbefore.
The company was a pioneer in the field of magnet technology. and has continuously met industry's needs for advanced materials and technology, including reliable surface processing techniques. With NEOMAX, we created a new class of mass-produced magnet. Today NEOMAX® is not only the world's best-selling rare earth magnet, but is also viewed by scientists and researchers around the world as having limitless potential applications. In recognition of this groundbreaking technological achievement, The company was awarded the Okouchi Memorial Prize for NEOMAX® in 1993.

Properties
Magnetic Properties
Magnetic Properties
Physical properties (Reference data)
Phisical properties

Surface treatment of NEOMAX®

The neodymium-based sintered magnet now has enhanced corrosion resistance of the material itself due to structural refinement are compositional homogenization of sintered constituents. Moreover, the magnet's reliability has been improved considerably due to the application of surface treatment technologies such as aluminum and nickel coating. When it comes to surface treatment, greater importance is now attached not only to corrosion-resistance performance but also to such factors as adhesive durability andinsulation quality, the requirements for magnets used in motors. We have developed environmentally sound products that meet these needs. These products are used by customers with confidence.

Our surface treatment technology is in compliance with international environmental standards, such as the RoHS directive and the ELV directive.

If you need surface treatment, please let us know beforehand because we have to choose appropriate treatment processes and product types according to applications, the specific usage environment and required characteristics.

Surface Treatment Standard Coating Thickness
(µm)
Example Uses Moisture Resistance Salt water Resistance Bonding Durability Insulation Proof Surface Cleanness Dimensional Accuracy
Aluminum Eco Aluminum Coating 5~20 FA, Automotive Motors(EPS, A/C Compressor Motors etc), Sensors, Speakers, Optical pickups, Actuators good   very good     good
Pure Aluminum Coating Compressor Motors for Household Electric Applications, Totally Enclosed Motors good   very good     good
Nickel Coating 10~20 HEV, VCM, Sensors, Speakers, Wigglers, Undulators, Various Motors very good good     very good good
Titanium Nitride(TiN) Coating 5~7 Undulators, Wigglers           good
Simple Rust Prevention <2 HEV, Two-Wheel Motors, Compressor Motors for Household Electric Applications, Low-corrsion Environmental uses(Consultion provided for various uses)         very good good
Electro-Deposition Coating 10~30 EPS, Various Motors good very good good very good    

* The coating thickness shown above is a standard value and the optimum coating thickness varies depending on service conditions and other factors.
Please consult with us in advance.
* These are the standard specifications. Please consult with us separately for special specifications corresponding to the use and the environment of the usage.

[photo]Eco•Pure aluminum coating
Eco•Pure Aluminum Coating
[photo]Nickel Coating
Nickel Coating
[photo]Simple rust prevention
Simple Rust Prevention
[photo]Titanium Nitride(TiN) coating
Titanium Nitride(TiN) Coating
[photo]Without coating
Without Coating
 

Demagnetization Curve (PDF format)
Demagnetization Curve File
Nd-Fe-B Magnet NEOMAX®
Acrobat PDF format 158KB

Inquiries
NEOMAX Company
  Tel.: +81-3-5765-4202
  Inquiry Form

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