Product code: C-D6.35H20-N42
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This popular rare earth cylinder has a diameter of 6.35mm and a height of 20mm. It is an N42 grade rare earth magnet. It has a magnetic flux reading of 6516 Gauss and a pull force of 1.82kg. It is identified by the AMF magnet part number C-D6.35H20-N42.
The magnetic field produced by a Rare Earth Cylinder magnet like this ¼ inch diameter example, is narrower and more intense than a thinner disc-shaped magnet. This characteristic makes cylinder magnets ideal for penetrating other material to locate the presence of metal including screws and nails. Commercial products such as stud finders utilise rod magnets to ‘see’ inside drywalls and reveal the location of the timber studs inside.
Round cylinder magnets are very adaptable and can be utilised for a broad range of applications. Cylindrical magnets make a good choice for those that need a precise and powerful magnetic hold. This particular cylinder magnet has a relatively narrow diameter for its height, and certainly typifies what people consider to be a rod magnet. The 20mm height means it is unlikely to be suited to applications that require the magnet to be inset into another material unless it is unusually thick in nature.
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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.
The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to the effects of gravity and the lack of friction between the surface and the shiny magnet. Read More
