Neodymium Block Magnet - 20mm x 10mm x 3mm | N48
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These N48 magnets provide a surprising amount of pull for their size making them ideal for many applications where size matters. This 20 x 10 x 3mm block is a handy size, with a pull force of 3.84 kilograms these magnets are suitable for a myriad of applications both industrial and domestic.
Many of our business customers use these magnets for a range of signage solutions, the inconspicuous size and relative strength makes them ideal for retail, warehouse and office displays and signage. Many workplaces have metal racks, walls or exposed frames allowing for magnetic adhesion of signs with no surface preparation required. Perfect for rented premises, magnets can be removed with no residue or paint damage requiring expensive repairs.
Curtain and blind manufacturers find these block magnets indispensable. Powerful enough to use through fabric and small enough to be a discreet solution to suit any design. Their magnetic holding power is strong enough to pull through material without damaging or piercing the fabric or blind.
These magnets are popular amongst furniture and cabinet makers as they provide a discreet and durable holding capacity for all manner of projects. When recessed into cabinets and frames they are a seamless solution to the common problem of holding doors neatly closed. Furniture makers have embraced magnets as an ingenious way of keeping modular furniture in place whilst allowing users to adjust and move the individual components when required.
Neodymium magnets or Rare Earth magnets as they are commonly known are the world’s most powerful permanent magnets. Another common application for these useful little magnets is the ever increasing prevalence of the grey nomad. Magnets are amazingly versatile and can be used to solve many problems faced, in holding items in place, whilst living life on the road. Whether it be affixing block outs and fly screens to windows or holding pots and pans in place these hard-wearing magnets are trade secrets of the experienced road traveler.
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.