Neodymium Block Magnet - 50mm x 50mm x 25mm | N48
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Neodymium Block Magnets
Length: 50mm (1.968" in.)
Width: 50mm (1.968" in.)
Height: 25mm (0.984" in.)
Grade: N48
Coating: Nickel (Ni)
Magnetized Direction: Through height - 25mm
Theoretical Holding Force: ~127.27 kg
Surface Field
This super-strong Neodymium Block magnet has equidistant 50mm sides and a height of 25mm. Magnets of this size should be handled with extreme care to avoid personal injury.
Most square or rectangular shaped magnets are axially magnetized, or in other words, the magnetic field flows through the thickness dimension with the North and South poles appearing on the two largest surfaces. Block shape magnets with angular sides sit well inside the u-shaped channel and are not easily dislodged. This huge block magnet has industrial strength magnetic power that is capable of holding 100kg of weight. This power can be harnessed and incorporated into the design of metal separation and extraction machinery that are used throughout the recycling and material recovery industries...The exposed surface area of Block magnets is larger than the exposed area of a Disc or round shape and is more suitable to thoroughly screening large amounts of waste material and retrieving any ferrous recyclable metals...Magnets positioned near conveyor belts can intercept dangerous tramp metals and remove them from the processing line.
Large Block shaped magnets are found in DC electric motors where they convert electrical power into rotational mechanical movement and conversely in electricity generators where kinetic energy is transformed into electricity. Such is the case on a wind farm. These high energy magnets are also utilized in many areas of both fully electric and hybrid vehicles. Large Neodymium magnets have also made Medical and Scientific innovations possible and have been crucial in the development of high-tech MRI technology and many scientific research advancements...
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Production Flow Diagram
Demagnetization Curves
Surface Treatment
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.
Range and Tolerance
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.
Magnetic Properties
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.
Returns Policy
If you are not entirely satisfied with your purchase, we're here to help.
We have a 30 Day Returns policy at Frenergy Magnets. You may return your item within 30 days of receiving it to receive a refund.
The product/s must be unused and in the same condition you received them in. Please contact us at info@frenergy.com.au to initiate the returns process.
The buyer is responsible for the cost of returning the order.