Neodymium Disc Magnet 3mm x 1.5mm N45
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This Neodymium disc magnet has a nickel coating which gives superior corrosion resistance for long-term use with minimal wear. It has a diameter of 3mm and a height of 1.5mm and a strong magnetic pull force of 185 grams, The magnetic flux reading is 4841 Gauss.
The tiny dimensions of this magnet don’t tell the whole story - the holding ability of this little disc, weighing only 1 gram, is 100 times its own weight under optimal conditions. It’s the pin-up for showing off the intense power of Neodymium material. The power of this disc magnet explains the prevalence of Rare Earth magnets throughout industry and their huge contribution to innovative product design worldwide.
Small Neodymium disc magnets are found in electronics, computers, microphones, audio equipment, and an endless range of modern electrical motors and devices where their unique ability to interact with electrical signals is fundamental. Their use in small but powerful electric Servo Motors is largely responsible for the reduction in size and increased performance of modern motor vehicles, aircraft, and military equipment, including Drone (RPAS) motors.
Neodymium disc magnets are also found in metering devices that measure and record movement and they also play an important role in the function of highly sensitive equipment, such as industrial gauges, safety valves, and sensors. In less technical fields, tiny discs are also favoured by fashion designers and jewellers where they are used in vintage or contemporary design. Hobbyists and artists also find these diminutive yet powerful magnets convenient for model building and many other artistic creations.
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.
