Injection Molded NdFeB Magnet

- Aug 12, 2019-

Product Description

Permanent Injection Molded Magnets

General Description

    1, Injection molded ndfeb magnets can be of very simple shapes or very complex

    2, All or only part of the device may be magnetized

    3, It is sometimes cost advantageous to make an entire part out of the magnet material and just magnetize the portion requiring magnetic output
    4, Bonded magnets can be made from either hard ferrite materials or rare earth magnetic powder


1. Product Details


Injection Molded NdFeB Magnet


Shape:Disc, Ring,Block, Cylinder or customized
cathode electrophoresis coating,Parylene coating and epoxide resin coating
Size:produce according customized
Temperature:The max operation temp is up to 150 degree centigrade
Application:spindle motor, stepping motor, synchronous motor, DC motor and brushless DC motor

2. Shape Show

Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more. 
Customized shape are available.

3.Production Process

Raw materials mixing→Smelting →Powder Production→Molding→Sintering→Magnetic property testing→Fine machinery processing→Surface Coating→Finished Inspection→Magnetization and packing

4. Property

Injection Molded:

  • Binder Types / Nylon / PPS / Polyamide.

  • Temperature Range -40c 180c

  • Very Tight tolerances off tool ( 0.002 -0.003 Typical )

  • Very good mechanical strength

Compression Bonded:

  • Higher Magnetic Strength due to higher magnetic particle density.

  • Epoxy Binder / Resistant to normal industrial solvents and automotive fluids

  • Epoxy Coat after manufacturing to prevent oxidation

  • Temperature Range -40c 165c

  • "Tight" tolerances off tool

  • Good mechanical strength

Typical Bonded Magnet Applications:

  • Sensors

  • Brushless DC Motors

  • Household Appliances

  • Compressor

  • automatic door

General Bonded Magnet Applications:

  • Materials are isotropic and can be magnetized in any direction

  • Wide range of existing tool sizes are available in rings, discs and rectangles

  • Exsisting Multipole magnetizing fixtures for quick prototyping

  • Easily machined

  • Existing Multipole rings simplify assembly verse arc sepments

5. Application

1) Servomotor, step motor, DC motor and linear motor
2) Loudspeaker, headphone, earphone and microphones
3) Holding system equipment
4) Medical facility
5) Sound device
6) Wind power
8) Mobile accessory
9) Research and development, as well as many other applications