Flexible Neodymium Magnet

Flexible neodymium magnet is a new type of flexible magnetic material. The material consists of neodymium (NdFeB) powder dispersed in plastic, flexible carrier, production process is calendering or extrusion.

Flexible neodymium magnet can be magnetized in many ways (most commonly used magnetizations are one side multipolar and axial magnetization). This material is much stronger than standard magnetic foil and has higher working temperature 120 ℃.

The main advantage to sintered magnets (ferrite, neodymium) is better workability and its flexibility - Flexible neodymium magnet can be cut, drilled, milled. Magnetic parameters are between sintered ferrite and neodymium magnets. Flexible neodymium magnet can replace hard ferrite magnets thanks to magnetic parameters while brings the advantages of rubber material - flexibility and workability. Main application areas are: flat speakers, sensors, miniature motors.

 

 

                      

 

Magnetic properties of Flexible neodymium magnet
Grade Residual Induction Coercive Force Intrinsic Coercive Force Maximum Energy Product
Br Hcb Hcj (BH)max
mT kA/m kA/m kJ/m3
[kGs] [kOe] [kOe] [MGOe]
R2 250-350 120-200 150-320 12.0-20.0
[2.5-3.5] [1.5-2.5] [1.9-4.0] [1.5-2.5]
R3 330-430 170-250 380-540 20.0-28.0
[3.3-4.3] [2.1-3.1] [4.8-6.8] [2.5-3.5]
R4 380-480 210-300 540-700 28.0-36.0
[3.8-4.8] [2.6-3.8] [6.8-8.8] [3.5-4.5]
R5 430-530 250-340 620-780 36.0-44.0
[4.3-5.3] [3.1-4.1] [7.8-9.8] [4.5-5.5]
R6 480-580 290-380 630-800 44.0-52.0
[4.8-5.8] [3.6-4.7] [7.9-10] [5.5-6.5]
R7 530-630 340-420 670-880 52.0-60.0
[5.3-6.3] [4.1-5.2] [8.4-11] [6.5-7.5]
R8 570-670 350-440 670-880 60.0-80.0
[5.7-6.7] [4.2-5.4] [8.4-11] [7.5-10]