25mm magnet
Fantastic super powerful
Product code: AMFYPC25
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AMF magnets use very strong neodymium magnets to create this Rare Earth Male Threaded Holding Magnet. This product has a diameter of 25mm, a total height of 17mm and a magnet housing thickness of 8mm. This permanent magnet has a magnetic round base with an M5 male threaded stud attached with an external boss of 9mm. This pot magnet has an overall pull strength of 22kg and a total weight of 30 grams.
This Rare Earth Holding Pot Magnet has a Male threaded boss protruding from the steel cap that encloses a Neodymium magnet. The steel cap alters the magnetic field; so it is diverted to the base and considerably increases the holding force of the magnet.
These magnets are popular with signage and lighting companies as their relatively small dimensions coupled with their strong pull force make them valued for their reliable and secure holding capacity. The Male Threaded boss allows for easy attachment to existing products and designs using a washer and nut. A female threaded boss is an alternative option which can be incorporated into the design for a seamless and hassle-free solution.
Product Code | DØ (mm) | M (mm) | H (mm) | h (mm) | Thread Pitch (mm) | Holding force (kg) | Weight (g) |
AMFYPC10 | 10 | 3 | 12 | 5 | 0.5 | 2.2 | 3.5 |
AMFYPC12 | 12 | 3 | 13 | 5 | 0.5 | 3.2 | 5 |
AMFYPC16 | 16 | 4 | 13 | 5 | 0.7 | 5.5 | 7.5 |
AMFYPC20 | 20 | 4 | 15 | 7 | 0.7 | 9 | 16 |
AMFYPC25 | 25 | 5 | 17 | 8 | 0.8 | 22 | 30 |
AMFYPC32 | 32 | 6 | 18 | 8 | 1 | 34 | 45 |
AMFYPC36 | 36 | 6 | 18 | 8 | 1 | 41 | 57 |
AMFYPC42 | 42 | 6 | 20 | 9 | 1 | 68 | 84 |
AMFYPC42/8 | 42 | 8 | 20 | 9 | 1.25 | 68 | 84 |
AMFYPC48 | 48 | 8 | 24 | 11.5 | 1.25 | 81 | 130 |
AMFYPC60 | 60 | 8 | 30 | 15 | 1.25 | 113 | 254 |
AMFYPC75 | 75 | 10 | 34 | 15 | 1.50 | 164 | 550 |
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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