Neodymium Disc & Rod Magnets

High tolerance neodymium rare earth disc & rod magnets, N42 grade

Guaranteed tolerances for repeatability with exceptional pricing.

Where indicated, all our neodymium magnets are fully sintered & individually pressed to optimize uniformity of magnetic orientation & are manufactured according to National Magnetic Standards. This ensures that strength variation of +/- 5% between magnets is met both within batches & from batch to batch. You can be certain that our magnets will make your sensors, switches & latches work reliably & according to design.

Coatings

  1. Standard is Cu-Ni-Cu & meets 10 hour salt spray test.
  2. Optional: Epoxy, Parylene, Gold, & more.

Certifications

  1. Certificates of Compliance available on request.
  2. All magnets made in ISO9002 certified facililty
  3. ROHS & MSDS certificates availalable.
Description More Information Technical Instructions/Safety FAQ
Displaying 1 to 44 (of 44 products)
2.5x1mm Neodymium Disc Magnet

2.5x1mm Neodymium Disc Magnet
SKU: 44200-1
$0.32USD or lower Each
2.5x2.5mm Rod Magnets

2.5x2.5mm Rod Magnets
SKU: 44200-2.5
$0.32USD or lower Each
5x1mm Neodymium Disc Magnet

5x1mm Neodymium Disc Magnet
SKU: 44201-1
$0.37USD or lower Each
2.5x5mm Rare Earth Rod Magnet

2.5x5mm Rare Earth Rod Magnet
SKU: 44200-5
$0.27USD or lower Each
2.5x7.5mm Rod Magnets

2.5x7.5mm Rod Magnets
SKU: 44200-7.5
$0.38USD or lower Each
2.5x10mm NdFeb Cylinder Magnet

2.5x10mm NdFeb Cylinder Magnet
SKU: 44200-10
$0.77USD or lower Each
2.5x12.5mm Rod Magnets

2.5x12.5mm Rod Magnets
SKU: 44200-12.5
$0.67USD or lower Each
3x1mm Neodymium Disc Magnet

3x1mm Neodymium Disc Magnet
SKU: 43511
$0.32USD or lower Each
4x1.5mm Disc Magnets

4x1.5mm Disc Magnets
SKU: 43512
$0.32USD or lower Each
5x10mm Neodymium Rod Magnet

5x10mm Neodymium Rod Magnet
SKU: 44201-10
$1.11USD or lower Each
5x2.5mm Neodymium Disc Magnet

5x2.5mm Neodymium Disc Magnet
SKU: 44201-2.5
$0.54USD or lower Each
5x12.5mm Cylinder Magnet

5x12.5mm Cylinder Magnet
SKU: 44201-12.5
$1.58USD or lower Each
5x5mm Rod Magnets

5x5mm Rod Magnets
SKU: 44201-5
$0.96USD or lower Each
5x7.5mm Neodymium Rod Magnet

5x7.5mm Neodymium Rod Magnet
SKU: 44201-7.5
$1.21USD or lower Each
7.5x1mm Thin Nd Disc Magnet

7.5x1mm Thin Nd Disc Magnet
SKU: 44202-1
$0.60USD or lower Each
7.5x2.5mm Disc Magnets

7.5x2.5mm Disc Magnets
SKU: 44202-2.5
$1.24USD or lower Each
7.5x5mm Disc Magnets

7.5x5mm Disc Magnets
SKU: 44202-5
$1.08USD or lower Each
7.5x7.5mm Rod Magnets

7.5x7.5mm Rod Magnets
SKU: 44202-7.5
$1.70USD or lower Each
7.5x25mm Rare Earth Rod Magnet

7.5x25mm Rare Earth Rod Magnet
SKU: 44202-25
$3.35USD or lower Each
10x1mm Neodymium Disc Magnet

10x1mm Neodymium Disc Magnet
SKU: 44203-1
$0.83USD or lower Each
10x2.5mm NdFeb Disc Magnet

10x2.5mm NdFeb Disc Magnet
SKU: 44203-2.5
$1.24USD or lower Each
10x5mm Neodymium Disc Magnet

10x5mm Neodymium Disc Magnet
SKU: 44203-5
$1.99USD or lower Each
10x7.5mm Neodymium Disc Magnet

10x7.5mm Neodymium Disc Magnet
SKU: 44203-7.5
$2.63USD or lower Each
10x10mm Neodymium Rod Magnet

10x10mm Neodymium Rod Magnet
SKU: 44203-10
$2.25USD or lower Each
10x12.5mm Neodymium Rod Magnet

10x12.5mm Neodymium Rod Magnet
SKU: 44203-12.5
$3.01USD or lower Each
10x15mm Nd Cylinder Magnet

10x15mm Nd Cylinder Magnet
SKU: 44203-15
$3.10USD or lower Each
10x25mm Nd Cylinder Magnet

10x25mm Nd Cylinder Magnet
SKU: 44203-25
$4.90USD or lower Each
12.5x1mm Thin Nd Disc Magnet

12.5x1mm Thin Nd Disc Magnet
SKU: 44204-1
$0.96USD or lower Each
12.5x2.5mm Disc Magnets

12.5x2.5mm Disc Magnets
SKU: 44204-2.5
$1.62USD or lower Each
12.5x5mm Disc Magnets

12.5x5mm Disc Magnets
SKU: 44204-5
$2.71USD or lower Each
12.5x7.5mm Disc Magnets

12.5x7.5mm Disc Magnets
SKU: 44204-7.5
$2.52USD or lower Each
12.5x10mm NdFeb Disc Magnet

12.5x10mm NdFeb Disc Magnet
SKU: 44204-10
$3.47USD or lower Each
12.5x12.5mm Rod Magnets

12.5x12.5mm Rod Magnets
SKU: 44204-12.5
$4.99USD or lower Each
12.5x25mm Rod Magnets

12.5x25mm Rod Magnets
SKU: 44204-25
$4.97USD or lower Each
15x1mm Thin Nd Disc Magnet

15x1mm Thin Nd Disc Magnet
SKU: 44205-1
$1.30USD or lower Each
15x2.5mm Neodymium Disc Magnet

15x2.5mm Neodymium Disc Magnet
SKU: 44205-2.5
$2.41USD or lower Each
15x5mm Neodymium Disk Magnet

15x5mm Neodymium Disk Magnet
SKU: 44205-5
$3.46USD or lower Each
15x25mm NdFeB Cylinder Magnet

15x25mm NdFeB Cylinder Magnet
SKU: 44205-25
$8.83USD or lower Each
20x5mm Neodymium Disk Magnet

20x5mm Neodymium Disk Magnet
SKU: 44207-5
$4.15USD or lower Each
20x20mm Neodymium Rod Magnet

20x20mm Neodymium Rod Magnet
SKU: 44207-20
$9.67USD or lower Each
25x2.5mm Strong Nd Disk Magnet

25x2.5mm Strong Nd Disk Magnet
SKU: 44209-2.5
$4.65USD or lower Each
25x5mm Disc Magnets

25x5mm Disc Magnets
SKU: 44209-5
$9.24USD or lower Each
25x10mm Neodymium Disc Magnet

25x10mm Neodymium Disc Magnet
SKU: 44209-10
$13.18USD or lower Each
25x20mm Rare Earth Disk Magnet

25x20mm Rare Earth Disk Magnet
SKU: 44209-20
$13.08USD or lower Each
More Information

Applications

SKU Size Shape Application
44201-2.5 5x2.5mm Disc 3D Printed Business Card Holder
44201-2.5 5x2.5mm Disc Magnetic Scanning Targets
44203-1 10x1mm Disc Wall Art-Insurance Company
44205-2.5 15x2.5mm Disc Wall Art-Dental Office

Custom Magnet Assemblies

Indigo Instruments is partnered with a world class designer & manufacturer of magnets & magnet assemblies. For more information see: Custom Machined Magnet Assemblies & Magnetic Filters.

For detailed specifications on individual magnets, click on their respective images for gauss ratings & pull forces with different air gaps.

 

Technical
Specifications for Fully Sintered/Pressed
Neodymium Magnets, N42 Grade
Remanent
Flux Density
(Br)		 Coercivity
(bHc)		 Intrinsic
Coercivity
(jHc)		 Max.
Energy Product
(BHMax)		 Curie
Temp.
(Tc)		 Working
Temp.
(Tw)		 Temp.
Coeff.
(αB)r
13,000G; 1300mT 12.0 Oe; 955 A/m 17.0 Oe; 1353 A/m 42 MGO; 334 kJ/m3 310oC 80oC -0.12%/Co

 

Specifications for Fully Sintered/Pressed
Neodymium Magnets, N42 Grade

RemanentFlux Density
(Br)		 13,000G; 1300mT
Coercivity
(bHc)		 12.0 Oe; 955 A/m
Intrinsic Coercivity
(jHc)		 17.0 Oe; 1353 A/m
Max.Energy Product
(BHMax)		 42 MGO; 334 kJ/m3
Curie Temperature
(Tc)		 310oC
Working Temperature
(Tw)		 80oC
Temp.Coefficient
(αB)r		 -0.12%/Co

 

  • magnetized through the thickness
  • nickel-copper-nickel coated
  • size tolerance for dimensions <10mm: ± 0.05mm
  • size tolerance for dimensions >10mm: ± 0.1mm
  • magnet strength variance piece to piece: ± 5%

 

This table lists the pull forces for all our disc magnets. It assumes complete saturation & no air gap. See individual magnets for values with different gaps.

Field Strength (Gauss) & Pull Forces in Pounds & Kilograms at Surface/Centre of Magnet
SKU Size (mm) Gauss Pounds Kilograms
43511 3 × 1 3661 0.24 0.11
43512 4 × 1.5 3960 0.57 0.26
44200-1 2.5 × 1 4123 0.18 0.08
44200-2.5 2.5 × 2.5 5903.2 0.4 0.18
44200-5 2.5 × 5 6402.9 0.51 0.23
44200-7.5 2.5 × 7.5 6510.2 0.56 0.25
44200-10 2.5 × 10 6549 0.58 0.26
44200-12.5 2.5 × 12.5 6567.2 0.6 0.27
44201-1 5 × 1 2451.2 0.49 0.22
44201-2.5 5 × 2.5 4666.9 1.29 0.59
44201-5 5 × 5 5903.2 2.04 0.93
44201-7.5 5 × 7.5 6261.3 2.2 1.0
44201-10 5 × 10 6402.9 2.26 1.03
44201-12.5 5 × 12.5 6471.8 2.36 1.07
44201-15 5 × 15 6510.2 2.41 1.1
44202-1 7.5 × 1 1700.6 0.87 0.4
44202-2.5 7.5 × 2.5 3661 2.2 1.0
44202-5 7.5 × 5 5280 4.11 1.87
44202-7.5 7.5 × 7.5 5903.2 4.82 2.19
44202-10 7.5 × 10 6179.8 5.22 2.37
44202-12.5 7.5 × 12.5 6321.7 5.52 2.51
44202-15 7.5 × 15 6402.9 5.62 2.55
44202-25 7.5 × 25 6527 5.92 2.69
44203-1 10 × 1 1294.4 1.25 0.57
44203-2.5 10 × 2.5 2951.6 3.24 1.47
44203-5 10 × 5 4666.9 6.48 2.95
44203-7.5 10 × 7.5 5491.5 7.94 3.61
44203-10 10 × 10 5903.2 8.87 4.03
44203-12.5 10 × 12.5 6127.9 9.37 4.26
44203-15 10 × 15 6261.3 9.54 4.34
44203-25 10 × 25 6471.8 10.19 4.63
44204-1 12.5 × 1 1042.7 1.63 0.74
44204-2.5 12.5 × 2.5 2451.2 4.41 2.0
44204-5 12.5 × 5 4123 9.18 4.17
44204-7.5 12.5 × 7.5 5070.3 11.52 5.24
44204-10 12.5 × 10 5596.8 13.25 6.02
44204-25 12.5 × 25 6402.9 16.06 7.3
44205-1 15 × 1 872.3 2.01 0.91
44205-2.5 15 × 2.5 2087.1 5.59 2.54
44205-5 15 × 5 3661 12.1 5.5
44205-7.5 15 × 7.5 4666.9 15.44 7.02
44205-10 15 × 10 5280 18.21 8.28
44205-12.5 15 × 12.5 5659.5 20.24 9.2
44205-25 15 × 25 6321.7 23.9 10.86
44206-1 17.5 × 1 749.4 2.38 1.08
44207-2.5 20 × 2.5 1600.7 7.67 3.49
44207-5 20 × 5 2951.6 17.22 7.83
44207-20 20 × 20 5903.2 36.26 16.48
44209-2.5 25 × 2.5 1294.4 10.01 4.55
44209-5 25 × 5 2451.2 22.77 10.35
44209-10 25 × 10 4123 37.84 17.2
44209-20 25 × 20 5596.8 54.58 24.81

 

Instructions/Safety
  • Can damage computer gear & credit cards.
  • Handle with care. Magnets can snap together and break skin or a finger or shatter on impact.