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Magnetic Appliances


NEODYMIUM ANISOTROPIC SINTERED RING MAGNET

Types of Anisotropic Ring Magnetic Field Orientation
Types of Anisotropic Ring Magnetic Field Orientation
Major Uses Features
1. Spingle motor for HDDs, FDDs
2. Servomotor for robots, machinery
3. Electrical motors for power steering in automobiles, etc.
4. Actuators


1. The cylindrical shape enables higher precision in external dimensions.
2. As a rotor, can achieve uniform magnetic density flux distribution.
3. Fastening the magnet is simple, enabling assembly-related cost reductions.
4. Highly reliability due to enabling rotor construction from a single magnet.
5. Optional magnetization, including free multiple magnetization, skew-type magnetization possible (Radial anisotropic magnet)
6. Can obtain sine surface inductive flux distribution (multi-pole oriented magnet)
Properties

Representative Magnet Properties (Radire anistropy)
Material Code Remanence
Br		 Coercivity Maximum Energy Type(BH)
(BH)max.
HCB HCJ
T kG kA/mkOekA/mkOekJ/m3MGOe
NMX-42R 1.24—1.36 12.4—13.6 923—1058 11.6—13.3 ≥1035 ≥13 295—351 37—44
NMX-40CR 1.20—1.34 12.0—13.4 891—1051 11.2—13.2 ≥1274 ≥16 278—343 35—43
NMX-38SR 1.14—1.29 11.4—12.9 819—1003 10.3—12.6 ≥1592 ≥20 246—319 31—40
NMX-35ER 1.10—1.24 11.0—12.4 803—970 10.1—12.2 ≥1871 ≥23.5 230—295 29—37
NMX-38R 1.20—1.30 12.0—13.0 891—1019 11.2—12.8 ≥1035 ≥13 278—327 35—41
NMX-35CR 1.15—1.25 11.5—12.5 859—980 10.8—12.3 ≥1274 ≥16 246—295 31—37
NMX-33SR 1.10—1.20 11.0—12.0 790—939 9.9—11.8 ≥1592 ≥20 230—279 29—35
NMX-30ER 1.05—1.13 10.5—11.3 772—884 9.7—11.1 ≥1871 ≥23.5 207—239 26—30
A Property Distribution Diagram
A Property Distribution Diagram
Representative Shape
Item Radial Anisotropic Magnet Multi-pole Oriented Magnet
Magnet diameter (mm) fÓ15—170 fÓ2—50
Diameter rate 0.75—0.95 0.6—0.8
Magnet length (mm) 5—60 5—60
  Number of poles Optional 2—24

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

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