Our Round Base Magnet assemblies, also known as Round Cup Magnets, RB Magnets or Magnetic Cup Assemblies, are plated with a nickel finish. They are made with either neodymium or ceramic magnets, which are combined with steel cups. With this type of design, the magnetic holding force is multiplied many- fold, to provide a holding magnet assembly that is significantly stronger than an individual magnet, and for an economical price!
Refer to the diagrams below for neodymium & ceramic magnet dimensions - note, all dimensions are in inches. Click on the images to enlarge:
Approximate Pull Info: The Approximate Pulls listed here are for reference only. These values are calculated under the assumption that the magnet will be attached to a flat, ground 1/2" thick mild steel plate. Coatings, rust, rough surfaces, and certain environmental conditions can significantly reduce the pull force. Please be sure to test the actual pull in your actual application, and for critical applications, it is suggested that the pull be de-rated by a factor of 2 or more, depending on the severity of a potential failure. (top)