The magnet strength you require will likely depend on your specific application. The magnet strength you need will also determine the type of magnet you need.
When you're assessing different magnets, you'll see that they have various grades, which are based on gauss and Oersted measurements. Magnet grades are usually given in units of Mega Gauss Oersteds (MGOe). One MGOe is the magnet's remanence in gauss multiplied by its resistance to coercivity in Oersteds.
Different magnets come in different grade ranges. High-energy flexible magnets, for instance, have lower grades, such as 1.1 or 1.6. Samarium cobalt magnets, which are much stronger, might have grades ranging from 18 to 30.
For essential commercial uses such as printing and labeling, you will likely want flexible ferrite-based magnets. These are dependable magnets that perform well for general purposes. At Magnum Magnetics, we offer quality flexible ferrite-based magnets that give your products the magnetic strength they need while allowing them to remain appealingly thin and flexible for applications like printing.
Heavy-duty applications would likely require stronger magnets, such as samarium cobalt, alnico or neodymium magnets. These magnets are often useful in high-heat or high-intensity applications such as those in the automotive, aerospace, medical and food and beverage manufacturing industries.