1.

Ordinary neodymium magnets only use one side of their magnetic field to stick to metal which means they’re only using half of their available strength. However,if add a steel cup, the other pole of the magnet to be used which increases the strength of the magnet to much higher than that of a normal neodymium magnet but also makes the other side magnetically weak.

If the highest possible pull force is required, then neodymium cup magnets are the answer to your magnet needs

2.

Strong magnets may interfere with the operation of pacemakers.

Strong magnets should be kept away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions.

Strong magnets might affect water meter, electric meter, gas meter and some metering equipment.

Strong magnet should keep away from kids, If magnet damaged please dispose of shards completely. They are still magnetized and will cause serious problem if swallowed by children.

3.

Magnet grades are used to identify how strong a magnet is, and magnet grades range from N35, the weakest, to N52, the ultimate in performance and holding power.When you buy an N52 magnet, you are buying the strongest magnet in that size that is commercially available.Neodymium magnets that are grade N52 are 35% stronger than commonly found N35 magnets.xhigh Brand is a professional manufacturer and distributor of neodymium magnets. All of our neodymium magnets's magnetic grade is N52

Material: NdFeB magnets

Max Operating Temperature: 80 Celsius degree / 176 Fahrenheit degree

For any information please contact us any time.We will reply ASAP.