Neodymium Ring Magnets

High tolerance neodymium rare earth ring 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 19 (of 19 products)
5x2.5x2.5mm NdFeB Ring Magnet

5x2.5x2.5mm NdFeB Ring Magnet
SKU: 44600-2.5
$0.36USD or lower Each
5x2.5x7.5mm Ring Magnets

5x2.5x7.5mm Ring Magnets
SKU: 44600-7.5
$0.67USD or lower Each
7.5x2.5x1mm Ring Magnets

7.5x2.5x1mm Ring Magnets
SKU: 44601-1
$0.38USD or lower Each
7.5x5x1mm Nd Circular Magnet

7.5x5x1mm Nd Circular Magnet
SKU: 44602-1
$0.45USD or lower Each
7.5x5x2.5mm Nd Ring Magnet

7.5x5x2.5mm Nd Ring Magnet
SKU: 44602-2.5
$0.84USD or lower Each
7.5x5x5mm Nd Circular Magnet

7.5x5x5mm Nd Circular Magnet
SKU: 44602-5
$1.59USD or lower Each
10x2.5x1mm Ring Magnets

10x2.5x1mm Ring Magnets
SKU: 44603-1
$0.84USD or lower Each
10x5x1mm Nd Ring Washer Magnet

10x5x1mm Nd Ring Washer Magnet
SKU: 44604-1
$0.33USD or lower Each
10x5x2.5mm Neo Donut Magnet

10x5x2.5mm Neo Donut Magnet
SKU: 44604-2.5
$0.85USD or lower Each
12.5x2.5x5mm Nd Ring Magnet

12.5x2.5x5mm Nd Ring Magnet
SKU: 44606-5
$1.78USD or lower Each
12.5x2.5x10mm Ring Magnets

12.5x2.5x10mm Ring Magnets
SKU: 44606-10
$1.94USD or lower Each
12.5x5x1mm Nd Thin Ring Magnet

12.5x5x1mm Nd Thin Ring Magnet
SKU: 44607-1
$0.75USD or lower Each
12.5x5x2.5mm Nd Donut Magnet

12.5x5x2.5mm Nd Donut Magnet
SKU: 44607-2.5
$1.36USD or lower Each
12.5x5x5mm Ring Magnets

12.5x5x5mm Ring Magnets
SKU: 44607-5
$2.45USD or lower Each
12.5x7.5x5mm Ring Magnets

12.5x7.5x5mm Ring Magnets
SKU: 44608-5
$1.86USD or lower Each
15x5x1mm Nd Thin Washer Magnet

15x5x1mm Nd Thin Washer Magnet
SKU: 44611-1
$1.11USD or lower Each
17.5x5x1mm Nd Flat Ring Magnet

17.5x5x1mm Nd Flat Ring Magnet
SKU: 44616-1
$1.41USD or lower Each
17.5x5x2.5mm Nd Ring Magnet

17.5x5x2.5mm Nd Ring Magnet
SKU: 44616-2.5
$1.76USD or lower Each
25x12.5x2.5mm Nd Ring Magnet

25x12.5x2.5mm Nd Ring Magnet
SKU: 44632-2.5
$2.91USD or lower Each
More Information

Applications

SKU Size Shape Application
44607-2.5 D12.5xd5x2.5mm Ring Reed Switch Motor
44608-5 D12.5xd7.5x5mm Ring Pocket Screwdriver

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.

See the Technical Tab below for General Specifications. .

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

Technical
  • N42 grade: ~13,000 gauss (1.3T)
  • 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
Holding Force in Pounds & Kilograms
Part Number (SKU) Size (mm) Pounds Kilograms
44600-1 5x2.5 x 1 0.38 0.17
44600-2.5 5 x 2.5 x 2.5 1.03 0.47
44600-5 5 x 2.5 x 5 1.6 0.73
44600-7.5 5 x 2.5 x 7.5 1.67 0.76
44600-10 5 x 2.5 x 10 1.68 0.76
44601-1 7.5 x 2.5 x 1 0.80 0.36
44601-2.5 7.5 x 2.5 x 2.5 2.02 0.92
44601-5 7.5 x 2.5 x 5 3.7 1.68
44602-1 7.5 x 5 x 1 0.58 0.26
44602-2.5 7.5 x 5 x 2.5 1.48 0.67
44602-5 7.5 x 5 x 5 2.47 1.12
44603-1 10 x 2.5 x 1 1.2 0.55
44603-2.5 10 x 2.5 x 2.5 3.1 1.41
44603-5 10 xI 5 x 5   6.14 2.79
44604-1 10 x 5 x 1 1.05 0.48
44604-2.5 10 x 5 x 2.5 2.67 1.21
44604-5 10 x 5 x 5 5.17 2.35
44604-10 10 x 5 x 10 6.83 3.10
44606-1 12.5 x 2.5 x 1 1.59 0.72
44606-2.5 12.5 x 2.5 x 2.5 4.29 1.95
44606-5 12.5 x 2.5 x 5 8.91 4.05
44606-10 12.5 x 2.5 x 10 12.80 5.82
44607-1 12.5 x 5 x 1 1.47 0.67
44607-2.5 12.5 x 5 x 2.5 3.92 1.78
44607-5 12.5 x 5 x 5 8.05 3.66
44608-1 12.5 x 7.5 x 1 1.25 0.57
44608-2.5 12.5 x 7.5 x 2.5 3.24 1.47
44608-5 12.5 x 7.5 x 5 6.48 2.95
44611-1 15 x 5 x 1 1.88 0.85
44616-1 17.5 x 5 x 1 2.27 1.03
44616-2.5 17.5 x 5 x 2.5 6.4 2.91
44632-2.5 25 x 12.5 x 2.5 8.09 3.68
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.