SmCo Countersunk Ring Magnet 20mm x 10mm | C/sunk hole d5.2 | North on C/Sunk
Same Day Dispatch
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Size: 20mm diameter x 10mm height with a 5.2mm diameter countersunk hole for fixing
Grade: YXG28
Coating: Nickel
Pulling force: 7.1kg
Magnetisation direction: thru height. North pole on countersunk face.
Resistant to corrosion and demagnetisation
Samarium cobalt is a type of rare-earth magnet that has the ability to withstand and operate in high temperatures, however, they are not as powerful as super-strong Neodymium magnets. Because of their high maximum operating temperature, they are commonly used in applications such as motors and electric motors, turbomachinery, and sensors. What’s more, because they have a superior resistance to corrosion they are ideal for using outside.
Countersunk magnets with opposite poles on the countersunk face can be used to attract two surfaces or two opposing countersunk magnets with the same pole on the countersunk face can be used to create a damping, shock absorbing or repelling effect.
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Magnetic Properties
Production Flow Diagram
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.
