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Neodymium Rare Earth Rod Magnets

The rod magnets are N42 grade, ~13,000 gauss (1.3T). Field strengths have been calculated using finite element analysis at the surface and 4 places above the central point and are estimated to be within 10% of actual. For surface measurements, these values are more accurate than a magnetometer since such devices have an airgap of at least 0.1mm between the magnet and sensor. The 0mm measurement is a maximum theoretical value that assumes there is no nickel coating.

The holding forces are also theoretical maximums based on optimum permeability, thickness, area of the metal attached to and no nickel or other coating. The attractive/repulsive force of 2 identical magnets, in direct contact, is double this value.
  • N42 grade; ~13,000 Gauss: 1.3Tesla
  • nickel-copper-nickel coated
  • size tolerance for dimensions <10mm: +/- 0.05mm
  • size tolerance for dimensions >10mm: +/- 0.1mm
  • magnet strength variance piece to piece: <8%
  • 80C maximum operating temperature
  • axis of magnetization is perpendicular to page
See also: Surplus Rare Earth Magnets.
Metric measurement explained:
25mm (2.5cm) = ~1 inch;     2.5mm (0.25cm) = ~ 1/10 inch;

Scientific notation explained:
1.15E+03=1150; 1.15E+02=115; 1.15E+01=11.5; 1.15E+00=1.15; 1.15E-01=0.12; 1.15E-02=0.01
Click on "Buy/Quote" button for quantity prices & freight options.
P/NDescription QtyUnit
44200-2.5N42 rod magnet, D2.5mm x 2.5mm1-90.12
 10-990.11
 100-9990.10
 1000+0.09
44200-5N42 rod magnet, D2.5mm x 5mm1-90.14
 10-990.12
 100-9990.11
 1000+0.10
44200-7.5N42 rod magnet, D2.5mm x 7.5mm1-90.18
 10-990.16
 100-9990.15
 1000+0.14
44200-10N42 rod magnet, D2.5mm x 10mm1-90.21
 10-990.19
 100-9990.17
 1000+0.16
44200-12.5N42 rod magnet, D2.5mm x 12.5mm1-90.24
 10-990.22
 100-9990.20
 1000+0.18
44201-5N42 rod magnet, D5mm x 5mm1-90.17
 10-990.15
 100-9990.14
 1000+0.13
44201-7.5N42 rod magnet, D5mm x 7.5mm1-90.27
 10-990.24
 100-9990.22
 1000+0.20
44201-10N42 rod magnet, D5mm x 10mm1-90.30
 10-990.27
 100-9990.25
 1000+0.23
44201-12.5N42 rod magnet, D5mm x 12.5mm1-90.38
 10-990.34
 100-9990.31
 1000+0.29
44201-15N42 rod magnet, D5mm x 15mm1-90.45
 10-990.41
 100-9990.37
 1000+0.35
44202-7.5N42 rod magnet, D7.5mm x 7.5mm1-90.42
 10-990.38
 100-9990.34
 1000+0.32
44202-10N42 rod magnet, D7.5mm x 10mm1-90.50
 10-990.45
 100-9990.41
 1000+0.37
44202-12.5N42 rod magnet, D7.5mm x 12.5mm1-90.55
 10-990.49
 100-9990.45
 1000+0.43
44202-15N42 rod magnet, D7.5mm x 15mm1-90.70
 10-990.63
 100-9990.57
 1000+0.54
44202-25N42 rod magnet, D7.5mm x 25mm1-91.40
 10-991.26
 100-9991.15
 1000+1.10
44203-10N42 rod magnet, D10mm x 10mm1-90.75
 10-990.67
 100-9990.61
 1000+0.58
44203-12.5N42 rod magnet, D10mm x 12.5mm1-91.36
 10-991.22
 100-9991.12
 1000+1.06
44203-15N42 rod magnet, D10mm x 15mm1-91.45
 10-991.31
 100-9991.19
 1000+1.13
44203-25N42 rod magnet, D10mm x 25mm1-92.35
 10-992.12
 100+1.95
44204-12.5N42 rod magnet, D12.5mm x 12.5mm1-91.50
 10-991.35
 100-9991.23
 1000+1.17
44204-25N42 rod magnet, D12.5mm x 25mm1-92.50
 10-992.25
 100+2.06
44205-25N42 rod magnet, D15mm x 25mm1-94.00
 10-993.65
 100+3.35
44207-20N42 rod magnet, D20mm x 20mm1-94.75
 10-994.30
 100+3.90

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