Some people suspected strong rare earth magnet can be used for oil fitter ? That is a fact.
The Strong rare earth magnet of AIM Magnet Co., Ltd are often used in oil pans, on oil filters or elsewhere to filter metal chips out of oil. However, the most popular grade of neodymium strong rare earth magnets normal working temperature is 80 degree. It will be lose strength if the heated over 80degree(175°F).
If your application involves higher temperatures, you are looking for a powerful magnet to put in your oil pan or attach to an oil filter, you need a higher Grade of Strong rare earth magnets,such as N35SH (SH = Super high Temperature ) material. The SH material of strong rare earth mag-net means that the strong rare earth magnets can be heated to 150 degree(302° F) without any loss of magnetic strength, unlike the normal neodymium strong rare earth magnet that begin to lose strength at 80degree((175°F). Suitable for many high temperature applications. Suggestion a disc type strong rare earth magnet as below:
Dimensions：diameter 12.7mm(1/2 inch) x thickness 3.175(1/8 inch)
Material: neodymium rare earth magnet, N35SH Grade
Plating/ Coating: Nickel (ni-cu-ni)
Magnetization Direction: Axial (Poles on Flat ends)
Max Working Temp: 150ºC