Compression bonded neodymium magnets Admin Edit

Compression bonded neodymium magnets,isotropic bonded neodymium magnets for Automobile Electric Motor Printers and Sensors,BNP-4 Polymer Bonded Magnet

  • Min. Order: 200 Piece/Pieces
  • Trade Term: FOB,CIF
  • Payment Terms: L/C, D/A, T/T, WU
  • Place of Origin: Zhejiang, China (Mainland)
  • Means of Transport: Ocean, Air
  • Production Capacity: 10,000 pc per day
  • Packing: cartons / pallets
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    Product Description

    Product Attribute

    Compression bonded magnets are available using many isotropic neodymium iron boron material grades as well as crushed & powdered samarium cobalt materials. Combinations of different material grades may also be used to create specific magnetic characteristics. Compression bonded magnets offers higher magnetic strength than injection molded magnets due to their higher magnetic particle density, but are limited to simpler geometries. The epoxy binder used is resistant to normal industrial solvent and automotive fluids. To reduce corrosion of the rare earth magnetic materials, they are further coated with epoxy after shaping. The normal application temperatures range from below -40°C to above 165°C.

    Compression bonding is most appropriate for relatively simple geometries due to limitations of the compaction process. The tooling costs for compression bonding is comparatively low, making it a better choice than injection molding where volumes are small. However, with modest automation, compression bonding can also be adopted for high volume manufacturing, with volumes upto millions of pieces per year.

    Production Flow Chart for Compression Bonded NdFeB
    Raw material (Mainly NdFeB powder and binder) preparation—Blending NdFeB powder and binder—Compaction molding—Machining—Surfacetreatment—Magnetizing—Final inspection—Packing—Warehousing

    Production Flow Chart for Injection Bonded NdFeB
    Raw material (Mainly NdFeB powder and binder) preparation—Blending NdFeB powder and binder—Injection molding—Machining—Surface treatment—Magnetizing—Final inspection—Packing—Warehousing

    The performance of the compression bonded neodymium magnets.



    BNP-3

    BNP-6

    BNP-8

    BNP-8SR

    BNP-9H

    BNP-10

    BNP-11

    BNP-12L

    Br (mT)

    450-510

    590-650

    620-670

    620-66

    650-700

    680-720

    700-740

    730-770

    Br (Gs)

    4500-5100

    5900-6500

    6200-6700

    6200-6600

    6500-4000

    6800-7200

    7000-7400

    7300-7700

    Hcb(kA/m)

    199-263

    302-374

    390-454

    405-470

    421-484

    413-477

    430-493

    366-430

    Hcb(kOe)

    2.5-3.3

    3.8-4.7

    4.9-5.7

    5.1-5.9

    5.3-6.1

    5.2-6.0

    5.4-6.2

    4.6-5.4

    Hcj (kA/m)

    477-597

    597-796

    636-796

    955-1114

    915-1034

    636-796

    636-796

    517-637

    Hcj(kOe)

    6.0-7.5

    7.5-10.0

    8.0-10.0

    12.0-14.0

    11.5-13.0

    8.0-10.0

    8.0-10.0

    6.5-8.0

    (BH)max (kJ/m 3)

    24-32

    44-53.6

    60-68

    65.6-72

    72-80

    76-84

    80-88

    84-92

    (BH)max (MGOe)

    3.0-4.0

    5.5-7.0

    8.0-9.5

    8.2-9.0

    9.0-10.0

    9.5-10.5

    10.0-11.0

    10.5-11.5

    Tw/ ℃

    120

    120

    120

    160

    160

    120

    120

    110



    The factory has over 15 years experience on manufacturing and technology on the plastic bonded magnets. With its own molding workshop, the factory can accomplish entire production process in-house from molding design, manufacturing and maintenance. The plant has obtained automatic production with rigorous Japanese-type management and precise equipments imported.

    Delivery Date: 10-18 days Shape: Ring
    Application: Motor Magnet Type: Permanent
    Composite: Neodymium Magnet Brand Name: LEC
    Size: Custom Br: 450 - 770 mT
    BHmax: 24 - 92 kJ/m 3 Hcb: 199 - 430 kA/m
    Hcj: 477 - 637 kA/m Certificate: ISO9001:2008
  • Min. Order: 200 Piece/Pieces
  • Trade Term: FOB,CIF
  • Payment Terms: L/C, D/A, T/T, WU
  • Place of Origin: Zhejiang, China (Mainland)
  • Means of Transport: Ocean, Air
  • Production Capacity: 10,000 pc per day
  • Packing: cartons / pallets
  • Delivery Date: 10-18 days
  • Shape: Ring
  • Application: Motor Magnet
  • Type: Permanent
  • Composite: Neodymium Magnet
  • Brand Name: LEC
  • Size: Custom
  • Br: 450 - 770 mT
  • BHmax: 24 - 92 kJ/m 3
  • Hcb: 199 - 430 kA/m
  • Hcj: 477 - 637 kA/m
  • Certificate: ISO9001:2008