Samarium cobalt magnet

Samarium cobalt magnet

For rare earth magnets (rare earth magnets),Neodymium magnetThere are two types: (neodymium Nd-Fe-B) and samarium-cobalt magnet (samarium-cobalt Sm-Co).
Samarium-cobalt magnet (Samarium-Cobalt Sm-Co) is one of the rare earth magnets with strong magnetic force and is resistant to heat.While neodymium magnets must be used at temperatures below 80 ° C, samarium-cobalt magnets are difficult to demagnetize even at high temperatures of 350 ° C and are resistant to rust, making them ideal for medical equipment and sensor parts.
Although there are some difficulties in mechanical strength, the product can be made smaller and lighter like neodymium.

Round shape

Unit: mm
OD x H Surface magnetic flux density Adsorption power
mT kG N kgf
 2φ x 0.8 160 1.6 0.41 0.04
 2φ x 2 280 2.8 0.84 0.09
 2.4φ x 1 190 1.9 0.56 0.06
 3φ x 1 180 1.8 0.81 0.08
 3φ x 1.5 200 2.0 1.23 0.13
 3φ x 2 260 2.6 1.57 0.16
 3φ x 3 280 2.8 2.24 0.23
 3φ x 4 300 3.0 2.15 0.22
 3.5φ x 2 260 2.6 1.67 0.17
 3.9φ x 2.5 290 2.9 3.20 0.33
 4φ x 0.8 150 1.5 0.97 0.10
 4φ x 0.9 180 1.8 1.06 0.11
 4φ x 1.5 200 2.0 1.85 0.19
 4φ x 2 260 2.6 2.22 0.23
 4φ x 3 300 3.0 3.07 0.31
 4φ x 3.5 310 3.1 3.33 0.34
 4φ x 4 330 3.3 3.54 0.36
 4φ x 5 350 3.5 3.81 0.39
 5φ x 1 180 1.8 1.52 0.16
 5φ x 1.5 200 2.0 2.09 0.21
 5φ x 2 250 2.5 2.71 0.28
 5φ x 3 300 3.0 4.14 0.42
 5φ x 4 320 3.2 5.03 0.51
 5φ x 5 350 3.5 5.59 0.57
 5.9φ x 3.5 300 3.0 7.02 0.72
 6φ x 2 220 2.2 3.33 0.34
 6φ x 3 260 2.6 5.08 0.52
 6φ x 4 310 3.1 6.49 0.66
 6φ x 5 350 3.5 7.45 0.76
 6φ x 6 360 3.6 8.10 0.83
 7φ x 3 280 2.8 5.89 0.60
 8φ x 2 240 2.4 5.74 0.59
OD x H Surface magnetic flux density Adsorption power Remarks
mT kG N kgf
 8φ x 2.8 270 2.7 6.21 0.63  
 8φ x 3 230 2.3 6.59 0.67  
 8φ x 5 300 3.0 11.08 1.13  
8φ x 5 300 3.0 11.08 1.13 1)
 8φ x 8 360 3.6 14.53 1.48  
 9φ x 2 180 1.8 5.35 0.55  
 9φ x 3 220 2.2 7.49 0.76  
 9.5φ x 1.5 150 1.5 4.62 0.47  
 9.5φ x 2 180 1.8 5.77 0.59  
 10φ x 2 180 1.8 6.15 0.63  
 10φ x 3 250 2.5 8.56 0.87  
 10φ x 3.5 270 2.7 9.65 0.99  
 10φ x 5 300 3.0 14.29 1.46  
 10φ x 6 350 3.5 16.86 1.72  
 10φ x 8 380 3.8 23.54 2.40  
 11φ x 1.5 160 1.6 5.64 0.58  
 12φ x 3 220 2.2 10.60 1.08  
 12φ x 8 380 3.8 26.39 2.69  
 12.5φ x 1.5 150 1.5 6.70 0.68  
 13.5φ x 10 420 4.2 35.92 3.67  
 14φ x 3.9 250 2.5 15.82 1.61  
 15φ x 3 200 2.0 13.90 1.42  
 15φ x 5 300 3.0 21.16 2.16  
 15φ x 10 400 4.0 41.38 4.22  
 15.5φ x 3.9 240 2.4 17.83 1.82  
15.8φ x 3.5 250 2.5 16.71 1.71  
 17φ x 3 260 2.6 16.25 1.66  
 17.5φ x 3.5 270 2.7 18.93 1.93  
 17.5φ x 5 300 3.0 25.29 2.58  
 20φ x 5 250 2.5 29.58 3.02  
 25φ x 9 370 3.7 77.21 7.88  

1) Ni plating
* Surface magnetic flux density and suction force are reference values.

Ring type

Unit: mm
OD x ID x H Surface magnetic flux density Adsorption power
mT kG N kgf
 1.4φ x 0.4φ x 1.6 280 2.8 0.38 0.04
 3φ x 1φ x 2.5 260 2.6 1.61 0.16
 3φ x 1.8φ x 4 290 2.9 1.50 0.15
 5φ x 3.2φ x 3 250 2.5 3.01 0.31
 6.5φ x 2φ x 1.5 200 2.0 3.71 0.38
 6.5φ x 2φ x 2 220 2.2 4.86 0.50
 8φ x 0.6φ x 1.5 180 1.8 4.76 0.49
 9.5φ x 2.2φ x 1.4 150 1.5 4.60 0.47
 10φ x 4.6φ x 2.6 280 2.8 12.09 1.23
 10.5φ x 7.6φ x 1 110 1.1 4.91 0.5
 13.2φ x 3φ x 1.5 150 1.5 10.07 1.03
 14φ x 4φ x 3 250 2.5 19.84 2.02
 14φ x 9φ x 8 330 3.3 25.71 2.62
OD x ID x H Surface magnetic flux density Adsorption power
mT kG N kgf
 16φ x 5φ x 3 200 2.0 22.74 2.32
 17φ x 5φ x 2 180 1.8 15.35 1.57
 17φ x 5φ x 5 250 2.5 33.12 3.38
 19φ x 5.5φ x 2 180 1.8 20.31 2.07
 20φ x 7φ x 4 250 2.5 32.38 3.30
 23.5φ x 11φ x 1.5 90 0.9 15.93 1.63
 30φ x 5φ x 5 250 2.5 64.63 6.60
 30φ x 15.5φ x 5 250 2.5 67.62 6.90
 36φ x 28φ x 5 240 2.4 81.15 8.28
 40φ x 17.5φ x 3 200 2.0 55.93 5.71
 46φ x 33φ x 2 200 2.0 53.32 5.44
60φ x 32φ x 7 300 3.0 184.28 18.80
 64φ x 47φ x 15 350 3.5 399.70 40.79

* Surface magnetic flux density and suction force are reference values.

Bar type

Unit: mm
OD x L Surface magnetic flux density Adsorption power
mT kG N kgf
 2.5φ x 5 370 3.7 1.56 0.16
 3φ x 5 370 3.7 2.24 0.23
 3φ x 9 390 3.9 2.38 0.24
 3.5φ x 6 400 4.0 3.10 0.32
 4φ x 8.5 350 3.5 4.19 0.43
 5φ x 10 400 4.0 6.58 0.67
 5φ x 13 420 4.2 5.88 0.60
OD x L Surface magnetic flux density Adsorption power
mT kG N kgf
 5φ x 15 380 3.8 7.51 0.77
 5φ x 25 330 3.3 6.92 0.71
 6φ x 8 370 3.7 8.88 0.91
 6φ x 9.5 400 4.0 9.21 0.94
 7φ x 8 380 3.8 11.62 1.19
 8φ x 10 380 3.8 19.17 1.96
 22.5φ x 25 420 4.2 148.72 15.18

* Surface magnetic flux density and suction force are reference values.

Square

Unit: mm
L × W × H Surface magnetic flux density Adsorption power Remarks
mT kG N kgf
 1.2 × × 1 1 110 1.1 0.32 0.03  
1.2 × × 1.2 2 180 1.8 0.44 0.05 1)
 3 × × 2 0.7 120 1.2 0.65 0.07 1)
 4 × × 4 2 250 2.5 3.04 0.31  
 6 × × 6 1.5 230 2.3 2.99 0.31  
 6 × × 6 2 250 2.5 4.48 0.46  
 9 × × 2.5 3.9 300 3.0 5.61 0.57  
 10 × × 6.5 4 320 3.2 10.45 1.07  
 11 × × 7 8 350 3.5 24.45 2.50  
 12 × × 7 3 260 2.6 9.98 1.02  
 14 × × 2 1 140 1.4 3.74 0.38 1)
 14.5 × × 10 4.5 280 2.8 21.14 2.16  
 15 × × 5 3 260 2.6 12.30 1.26  
 15 × × 10 4 280 2.8 19.24 1.96  
 15 × × 10 5 300 3.0 19.56 2.00  
 20 × × 5 12 360 3.6 29.69 3.03  
L × W × H Surface magnetic flux density Adsorption power
mT kG N kgf
 20 × × 10 5 300 3.0 24.23 2.47
 20 × × 12 5 300 3.0 25.48 2.60
 20 × × 15 5 260 2.6 33.33 3.40
 20 × × 20 10 300 3.0 78.47 8.01
 25 × × 15 1.5 120 1.2 8.08 0.82
 25 × × 15 3 170 1.7 24.21 2.47
 26 × × 8 4 280 2.8 24.54 2.50
 30 × × 16 5 250 2.5 46.39 4.73
 38 × × 38 18 320 3.2 218.49 22.30
 38 × × 38 24.5 380 3.8 328.65 33.54
50 × × 30 12 350 3.5 169.89 17.34
50 × × 30 35 500 5.0 483.12 49.30
 58 × × 14 6 270 2.7 89.76 9.16
 60 × × 60 12 330 3.3 268.41 27.39
77 × × 32 24 330 3.3 421.98 43.06

1) Ni plating
* Surface magnetic flux density and suction force are reference values.

Radial magnetizing type

Unit: mm
OD x H [ID] Surface magnetic flux density
mT kG
 1.5φ x 0.37 (0.4φ) 150 1.5
2φ x 9 240 2.4
 4.4φ x 8.3 (2.4φ) 200 2.0

* The surface magnetic flux density is a reference value. * The photo is 4.4φ x 8.3 (2.4φ).

Micro magnet®

Product name OD × ID × H Outer diameter OD (mm) Inner diameter ID (mm) Height H (mm) Magnetization direction surface treatment Surface magnetic flux density reference value (mT)
0.8φ x 0.27φ x 0.41 0.800 0.270 0.41 Radial direction Gold plate 70
1φ x 0.27φ x 0.47 1.000 0.270 0.47 Radial direction None 110
1.05φ x 0.27φ x 0.55 1.050 0.270 0.55 Radial direction None 130
1.35φ x 0.27φ x 0.45 1.350 0.270 0.45 Radial direction None 140

*Dimensional tolerance: Outer diameter OD±0.005, Inner diameter ID±0.005, Height H±0.01 (mm) *Surface magnetic flux density: The maximum value measured on the outer peripheral surface is shown as a reference value.