N50 D30*10mm Rare Earth Neodymium Big Round Magnet

N50 D30*10mm Rare earth neodymium big round magnet Each magnet's north and south pole are on opposite 30mm diameter faces. It has excellent resistance to demagnetisation. Each magnet is coated with three layers of nickel, copper and nickel to improve corrosion resistance and provide a smooth and clean finish. This medium-sized round magnet is made from ultra high performance N50 grade neodymium and produces an incredible magnetic pull. These magnets are so strong that they will wipe data from hard drives and are commonly used in large scale engineering where maximum strength is required.  These magnets should only be handled by people who are used to handling strong magnets and once a thorough risk assessment has been undertaken. Tips:1. Strong magnets should Keep away from Ironware and some  easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other2. Strong magnets should be stored in a dry, heated environment, and need to use of plastic, wood, cardboard, foam to separated and wrapped. More round magnets photo details: Material NdfeB Grade N50 Diameter 30mm Thickness 10mm Magnetizing Direction Axial Magnetization(Thickness) Plating Coating