Neodymium Ring Magnet - (OD)100mm x (ID)70mm x (H)3mm | N35
Product code: R-OD100H3ID70-N35
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Neodymium Ring Magnet - (OD)100mm x (ID)70mm x (H)3mm | N35
Magnetic Product Description:
This neodymium magnetic ring has an outer diameter of 100mm, an inner diameter of 70mm and a height of 3mm. It is identified by the AMF magnet part number R-OD100H3ID70-N35.
Uses for our Rare Earth Ring Magnets:
Naturally occurring, ferromagnetic materials, wide range, north and south pole
Large Neodymium ring magnets are not a widely used shape of magnet however they do have unique properties that make them ideal for specific applications. Ring magnets are often housed inside metal casings or secured permanently as part of a larger device or apparatus. Larger rings such as this are not well suited to use as a general use magnet. The hole in the centre of the broad and flat ring creates a comparatively fragile shape and when in combination with brittle Neodymium material can lead to frequent breaks.
Like disc magnets, the north and south poles are most commonly present through the opposing flat faces. Ring magnets come in a wide range of diameters and thicknesses to suit a myriad of applications. Small ring magnets are popular with craftspeople and dressmakers as the hole provides a convenient means of attaching the magnet to just about anything.
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NB: Ranges are indicative for product category, please check individual products for specic values within that range.
The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.
Magnets are readily available in Blocks, Discs, Cylinders & Rings. AMF Magnetics specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.
Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.
