We only sell Neodymium Magnets - they are currently the most powerful magnets available.
They are much, much more powerful than common Ceramic magnets or old 'high power' ALNICO magnets. Unfortunately Neodymium magnets can be expensive, and very expensive for big Neodymium magnets.
All our magnets are high grade Neodymium, grade N45 or N48 (whatever the highest grade available is for a particular magnet shape & size). Although there are some magnet shapes & sizes now available in an N50 & N52 grade, they are terribly fragile and are known to shatter , chip or break even with careful handling.
N50 magnets only have a very small increase in strength, but they are so much more fragile that they can break or shatter when you drop them or when they snap to attach to something. We stock the absolute most powerful magnets available for any given size & shape - that is still 'usable' - meaning a magnet that you can actually use for something without being worried it will break or chip if you dorp it, or if it attaches to a piece of metal.
Even though our magnets are quite tough, they, like all Neodymium magnets, are made from from highly compressed metal powders coated with multiple layers of protective nickel & copper plating. They are still somewhat fragile need to be handled with proper care. Any Neodymium magnets that are allowed to fly together at full speed may chip or break - the larger the magnet, the greater the forces involved and the greater the chance of chipping or breakage. The magnetic fields from these magnets can affect each other from more than 12 inches away. Our magnets can easily bruise fingers and the larger ones can break finger bones and even crush hands as they attempt to connect together.
Always wear protective eyewear or safety goggles when handling the magnets. Keep magnets away from any magnetic based storage devices such as desktop or laptop computers, hard drives, floppy disks, cassette tapes, video tapes, or credit cards. A distance of at least 12" should be kept between magnets and these items at all times. Neodymium magnets are not suitable for small children to play with. If small magnets are ingested, they can connect together in parts of the digestive system, blocking proper operation and cause death. These magnets should only be handled under strict adult supervision.
Neodymium magnets will lose their magnetic properties if they are heated above 180° Fahrenheit (80° C). All Neodymium magnets are not created equal! You may find 'inexpensive' Neodymium magnets for sale from time to time. The phrase "buyer beware" certainly applies here. Our magnets are at least 12,500 gauss or higher. We always try and stock the most powerful magnet available for any particular size & shape. There are plenty of inexpensive Neodymium magnets available... but they have just a small fraction of the magnetic power that our magnets have. Like always, you get what you pay for.
In addition to our regular Neodymium magnets, we also sell SuperMagnets. SuperMagnets are very large & powerful Neodymium magnets. They are strong enough to break arm bones and even crush hands. The magnets listed as SuperMagnets can only be sold to adults and require an adult signature upon delivery. These are extremely dangerous and the danger increases dramatically if you are working with more than one SuperMagnet. NEVER ALLOW CHILDREN TO PLAY WITH OUR LARGE SUPERMAGNETS!