Neodymium Block Magnet - 4mm x 3mm x 1.8mm | N50
Same Day Dispatch
Order before 1pm to qualify for same day dispatch.
This nickel-coated Neodymium block magnet has a pull force of 0.5050kg, Gauss 6698, Grade N50. It has dimensions of 3mm in width, 4mm in length and a height of 1.8mm. Its direction of magnetization is through height.
This Neodymium magnet has a sleek nickel-coating and its extremely low profile height dimensions make it extremely versatile. Like all Rare Earth magnets, these tiny block magnets deliver incredible magnetic strength despite their size.
Neodymium magnets have led to astounding advancements in many forms of technology because of those unique qualities - all that power packed into a micro magnet. Prior to the discovery and use of Rare Earth magnets several decades ago, Ferrite, Alnico and Samarium cobalt were the common types of magnets, and they still have their place, but Neodymium magnets are undoubtedly the headline act today.
These tiny block magnets can be found in fashion and jewellery design, model-making, electronics, sensors, motorized devices, medical equipment - an essential component in so many applications because of their strong, reliable power, tucked away in a small, discreet form.
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.
