Bonded NdFeB

Download: Bonded NdFeB

Descriptions of products

  1. Bonded NdFeB has the highest magnetic properties with free choice of magnetization direction. Ring magnets are capable of achieving radial and multi-polar magnetization, and can be produced in complex shapes. Mixed with heat resistant plastics and additives, the magnetic powder has excellent heart-resistant stability. Special resin coating enables Bonded NdFeB magnets good corrosion resistance.
  2. Bonded NdFeB is produced by molding compression from the NdFeB alloy powder with epoxy resin. Also can be made by injection or extrusion from NdFeB alloy powder mixed with plastic.
       
Multi-poles on outer circumference Multi-poles on inner circumference Multi-poles on one face Complex Multi-poles



Typical Magnetic Performance for Bonded NdFeB Magnet

Grade Br Hcb Hcj BHmax Density Tw Max
kGs mT kOe kA/m kOe kA/m KJ/m3 MGOe g/cm3 ℃
BN-2 3.50 350 2.50 200 7.00 560 20 2.50 4.80 160
BN-4 4.50 450 3.50 280 8.00 640 40 5.00 5.50 160
BN-6 5.50 550 4.50 360 8.00 640 52 6.50 5.80 160
BN-8 6.50 650 5.00 400 9.00 720 64 8.00 6.00 160
BN-8H 6.30 630 5.50 440 15.00 560 64 8.00 6.00 160
BN-8SR 6.30 630 5.50 440 12.00 560 64 8.00 6.00 180
BN-8L 6.50 650 5.50 440 9.00 560 68 8.50 6.00 160
BN-10 7.00 700 5.50 440 9.00 560 80 10.00 6.00 160
BN-10H 7.30 730 5.50 440 9.00 560 84 10.50 6.20 160
BN-12 7.50 750 6.00 480 10.00 560 92 11.50 6.20 160
BN-12D 7.50 750 6.00 480 10.00 560 92 11.50 6.20 170
BN-12L 7.80 780 5.50 440 7.00 560 92 11.50 6.20 150
BN-13L 8.00 800 5.50 440 7.00 560 96 12.00 6.30 150

Typical Magnetic Performance for Bonded NdFeB Magnets (Compression)

　 Grade JBM-2 JBM-4 JBM-6 JBM-8 JBM-8H JBM-8L JBM-9 JBM-10 JBM-12 JBM-12L
Residual induction
Br		 mT 300
-400		 400
-500		 500
-600		 600
-680		 600
-650		 650
-680		 600
-680		 680
-730		 710
-750		 720
-760
kGs 3.00
-4.00		 4.00
-5.00		 5.00
-6.00		 6.00
-6.80		 6.00
-6.50		 6.50
-6.80		 6.00
-6.80		 6.80
-7.30		 7.10
-7.50		 7.20
-7.60
Coercive  Force
Hcb		 KA/m 160
-240		 240
-320		 320
-400		 360
-440		 400
-480		 400
-480		 400
-480		 400
-480		 440
-520		 400
-480
(Koe 2.00
-3.00		 3.00
-4.00		 4.00
-5.00		 4.50
-5.50		 5.00
-6.00		 5.00
-6.00		 5.00
-6.00		 5.00
-6.00		 5.50
-6.50		 5.00
-6.00
Intrinsic  Coercive  Force
Hcj		 KA/m 480
-640		 560
-720		 560
-720		 640
-800		 1040
-1360		 900
-1120		 640
-800		 640
-800		 720
-880		 480
-640
KOe 6.00
-8.00		 7.00
-9.00		 7.00
-9.00		 8.00
-10.00		 14.0
-16.0		 11.00
-13.00		 8.00
-10.00		 8.00
-10.00		 9.00
-10.00		 6.00
-8.00
Max Energy  Product
(BH)max		 KJ/m³ 16-24 32-44 48-60 60-72 60-68 64-72 68-72 76-84 84-96 84-96
MGOe 2.00
-3.00		 4.00
-5.50		 6.00
-7.50		 7.50
-9.00		 7.50
-8.50		 8.00
-9.00		 8.50
-9.50		 9.50
-10.50		 10.50
-12.00		 10.5
-12.0
Relative Recoil
Permeability		 µH/M 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2
reversible temp. coefficient ％/℃ -0.11 -0.11 -0.11 -0.11 -0.12 -0.13 -0.11 -0.1 -0.1 -0.11
Curie Temp. ℃ 350 350 350 350 300 300 300 350 350 320
Maximum Operating Temp. ℃ 120 120 120 150 160 160 150 150 150 140
Density g/m³ 4.50
-6.00		 5.20
-6.00		 5.50
-6.00		 5.80
-6.10		 5.8
-6.2		 5.80
-6.20		 5.80
-6.20		 5.80
-6.20		 6.00
-6.20		 6.00
-6.20

Typical Magnetic Performance for Bonded NdFeB Magnets (Extrusion)

　 Grade JBZ-3 JBZ-4 JBZ-5 JBZ-6 JBZ-7 JBZ-8 JBZ-5H (PSS)
Residual induction 
Br		 mT 200--400 350--450 450--520 500--550 600-610 650--675 480--520
kGs 2.00--4.00 3.50--4.50 4.50--5.20 5.00--5.50 6.00-6.10 6.50--6.750 6.00--6.50
Coercive Force
Hcb		 KA/m 160--240 240--320 320--358 360--440 350-380 318--366 400--480
Koe 2.00--3.00 3.00--4.00 4.00--4.50 4.00--5.00 4.30-4.70 4.00--4.60 5.00--6.00
Intrinsic Coercive Force
Hcj		 KA/m 480--640 560--720 560--720 640--800 650-704 477--517 1040--1360
Koe 6.00--8.00 7.00--9.00 7.00--9.00 8.00--100 8.10-8.80 6.0--6.5 11.00--13.00
Max Energy  Product
(BH)max		 KJ/m³ 12--24 24--36 36--44 44--52 56-60 64--66 60--68
MGOe 1.50--3.00 3.00--4.50 4.50--5.50 5.50--6.50 7.00-7.50 8.00--8.30 4.50--5.50
Relative Recoil Permeability µH/M 1.2 1.2 1.2 1.2 1.2 1.2 1.2
reversible temp. coefficient ％/℃ -0.15 -0.13 -0.13 -0.11 -0.12 -0.12 -0.12
tensile strength(ASTM-D638) Kg/cm2 590 590 610 550 580 580 580
flexural strength(ASTM-D790) Kg/cm2 108 108 110 90 110 110 110
Impact Strength(ASTM-D256) Kj/cm2 20 20 18 10 15 15 15
Heat deflection temp. ℃ 150 150 150 150 150 150 150
Density g/m³ 3.90--4.40 4.00--4.50 4.50--5.00 4.50--5.50 4.50--5.50 5.5 5.2
Maximum Operating Temp. ℃ 110 120 120 130 150 120 150