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

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

Certifications

Certificates of Compliance available on request.
All magnets made in ISO9002 certified facililty
ROHS & MSDS certificates availalable.

Description More Information Technical Instructions/Safety

Displaying 1 to 19 (of 19 products)

5x2.5x2.5mm NdFeB Ring Magnet

SKU: 44600-2.5

5x2.5x7.5mm Ring Magnets

SKU: 44600-7.5

7.5x2.5x1mm Ring Magnets

SKU: 44601-1

7.5x5x1mm Nd Circular Magnet

SKU: 44602-1

7.5x5x2.5mm Nd Ring Magnet

SKU: 44602-2.5

7.5x5x5mm Nd Circular Magnet

SKU: 44602-5

10x2.5x1mm Ring Magnets

SKU: 44603-1

10x5x1mm Nd Ring Washer Magnet

SKU: 44604-1

10x5x2.5mm Neo Donut Magnet

SKU: 44604-2.5

12.5x2.5x5mm Nd Ring Magnet

SKU: 44606-5

12.5x2.5x10mm Ring Magnets

SKU: 44606-10

12.5x5x1mm Nd Thin Ring Magnet

SKU: 44607-1

12.5x5x2.5mm Nd Donut Magnet

SKU: 44607-2.5

12.5x5x5mm Ring Magnets

SKU: 44607-5

12.5x7.5x5mm Ring Magnets

SKU: 44608-5

15x5x1mm Nd Thin Washer Magnet

SKU: 44611-1

17.5x5x1mm Nd Flat Ring Magnet

SKU: 44616-1

17.5x5x2.5mm Nd Ring Magnet

SKU: 44616-2.5

25x12.5x2.5mm Nd Ring Magnet

SKU: 44632-2.5

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.