- How to prepare an inquiry for magnets?- What details must be clarified in order to obtain an accurate quotation and delivery date?If you have such doubts when purchasing magnet materials, I hope this article can help you.When we want to clarify the procurement requirements of magnets, there are several key points to be clarified, including performance requirements, shape and size, magnetization direction, surface treatment requirements, required quantity, project delivery, transportation me...

Most commonly, Gaussmeters, Magnetometers, or Pull-Testers are used to measure the strength of a magnet. Gaussmeters measure the strength in Gauss, Magnetometers measure in Gauss or arbitrary units (so its easy to compare one magnet to another), and Pull-Testers can measure pull in pounds, kilograms, or other force units. Special Gaussmeters can cost several thousands of dollars. 

There are 2 types of magnets: permanent magnets and electro-magnets.Permanent magnets emit a magnetic field without the need for any external source of power. Electro-magnets require electricity in order to behave as a magnet.There are various different types of permanent magnet materials, each with their own unique characteristics. Each different material has a family of grades that have properties slightly different from each other, though based on the same composition.

The amount of magnetism [brmax at the center] of a magnet is measured in Gauss. This is a measure of the penetration of a magnet. Below is a table of the Gauss ratings of the most popular neodymium magnets:Grade GaussN35 11,700-12,100N38 12,100-12,500N40 12,600-12,900N42 12,900-13,200N45 13,500-13,800N48 14,000-14,200N50 14,300-14,500N52 14,600-14,800

Take grade N35 as example, letter "N" is short for neodymium, directing to the magnet type, the number “35” means a neodymium magnet has a maximum energy product of 35MGOe. It refers to the maximum magnetic energy that the material can be stored.The most common range of N-serials grade usually operate at up to +80 degrees C. Higher temperature grades (NxxM, NxxH, NxxSH, NxxUH, NxxEH, NxxAH) are rated from up to +100 degrees C to a maximum of up to +240 degrees. Magnet shape, working...