Super Strong Magnets
Super Strong Magnets
Strong magnets come in different shapes, sizes and materials that produce magnetic force to lift items like cars.
Rare earth metal magnets are among the strongest magnets, offering 10x stronger magnetic pull than ceramic ones and withstanding temperatures up to 100 degC without becoming damaged.
Neodymium magnets that weigh only a few grams produce an astonishing force of over 1700 grams (3.75 pounds). Because these are small magnets, they present a potential choking hazard to children and should be handled carefully to prevent injuries to themselves or others.
Neodymium-iron-boron
Neodymium-iron-boron magnets (also referred to as NdFeB or NIB magnets) are the strongest permanent magnets commercially available. Sintered through an intricate process, these permanent magnets offer superior magnetic energy per volume than alnico or ceramic (ferrite) magnets and offer significantly better resistance against demagnetization.
Neodymium magnets are known for creating powerful magnetic fields 18 times greater than those created from iron alone, with their combination of cohesion-enhancing boron atoms increasing cohesion and improving magnetic properties of their materials.
Although neodymium is considered rare, it's found in abundance throughout Earth's crust and currently forms the strongest magnets available. A new type of magnetic material being developed will use no rare earth materials and could double in strength; however, mass production remains some way off and injuries may result if these magnets are misused.
Earth
On Earth are some powerful magnets. One such powerful magnet, "Project 11," boasts a magnetic field of over 1,200 Teslas. Constructing it took researchers over two and a half years at an estimated cost of over $3.5 million; rare-earth metals used were those with Curie temperatures below room temperature that are abundant throughout Earth's crust like tin and lead but do not form seams like copper and coal do; also classified as strategic materials by China due to export restrictions have led some scientists to research alternatives that don't use these precious elements - such as nanotech technologies or 3D printed parts made entirely from rare earth metals!
Neodymium magnets are highly powerful magnets and must be handled carefully to avoid injury or property damages. Larger neodymium magnets may cause fractures and splinters; therefore, wearing gloves when handling them is recommended to protect both hands from being broken by these magnetic objects. They should also be kept out of reach from children's faces, as these magnetic fields could pinch fingers.
Bar-shaped
Bar magnets are rare earth magnets with two poles at either end. As the strongest commercially available magnets in their category, bar magnets feature blue and red colors to indicate north and south poles respectively and vary in strength depending on their grade.
These magnetic bars serve multiple purposes, from activating reed switches and holding items on the fridge to crafting and DIY projects. However, children should avoid handling strong magnets as they could pose choking hazards; similarly individuals with pacemakers should avoid handling powerful magnets that may interfere with their operation.
CMS Magnetics' Neodymium disc magnets come equipped with one pole at the bottom and another on top, making them the ideal solution for applications such as hanging signs, keys and cabinet doors. Our selection of shapes and sizes ensure you'll find one suitable to meet your specific requirements.
Cylindrical magnets
Magnets exert attractive or repulsive forces on materials with opposite poles, such as bar magnets. Their magnetic fields extend three-dimensionally around them and can easily identify their North and South poles through lines of force that emanate from it. Furthermore, these magnetic fields can draw metals or objects near them towards it or even affect electrical conductors directly.
This phenomenon, known as the Faraday effect, demonstrates how magnet strength decreases with increasing distance from its center. When placed closer to a surface area, its field strength becomes greater while as distance from surface increases strength decreases accordingly.
Cylinder-shaped neodymium magnets are typically magnetized axially, with their poles located on their flat surfaces. Diametrically magnetized versions may also be available with poles placed along their rounded edges - this form of diametric magnetism being very popular for projects requiring two to three times greater force than thinner disc magnets of equivalent diameter.