Neodymium Block Magnet - 50mm x 25mm x 12.7mm | N38
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This nickel-plated Neodymium block magnet weighs 0.117kg and has a pull force of 28.35kg. Gauss 3957, Grade N38. It is 25mm in width, 50mm in length with a height of 12.7mm. Its direction of magnetization is through height.
These extremely strong Neodymium block magnets play a vital role in industrial processes and manufacturing worldwide. As manufacture turns more to automation, detection of faults or costly interruptions to those production lines is essential, and that's where these Neodymium block magnets play an integral part. These powerful Rare Earth magnets are used for holding and separating components in industrial processes. They are also used for the detection of other permanent magnets, ferrous metals or electrically generated magnetic fields. Large Neodymium block magnets are integrated into processing systems to activate alarms and warning systems that can indicate dangerous situations in the production line or manufacturing process. They act as sensors for ferrous materials or electromagnetic currents, which can trigger alerts for operators to carry out checks and maintenance on those manufacturing systems.
As mentioned, alarms and security systems also utilize these super-strong neodymium block magnets. They can ensure the function of important security and safety systems using their natural magnetic power which is not reliant upon mains electricity. Magnetic switches, valves, and friction-free magnetic couplings also rely on Neodymium permanent magnets to operate reliably and efficiently. The dimensions of this block magnet are a handy extra – they are a near substitution for magnets with 2x1x1/2 inch imperial dimensions.
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.
