Customer Purchase Agreement

To enable us to work more effectively with you and save your time, We need you to provide the following information: 

1.What material is it made of, and what are its performance characteristics?

2.Dimensions and Tolerances?

3.Should the magnet be recharged? If so, what is the method, axial or radial?

4.The highest temperature for a magnet working environment?

5.How many would you like to order?

6.Surface treatment? Galvanized, nickel plated?

7.If you need special handling, please inform us.
Based on our latest experience, this method of ordering magnets is most effective and can save the most.Save your timeExclamation mark!

 The representation of a magnet

【1】圆形尺寸一般用D表示直径 (for convenience, D is used to replace Φ, which is a special symbol), for example, D20X1MM indicates a magnet with a diameter of 20mm and a thickness of 1mm. The letter X here represents the mathematical symbol for multiplication.

The dimensions of a square are generally represented by the symbol F, where the length, width, and height are denoted by F followed by the dimensions in the format of FLengthxWidthxHeight. For example, a square with a length of 40 and a width of 2 would be represented as F40x2.5The term 'x10MM' refers to a square magnet with dimensions of 40mm in length, 25mm in width, and 10mm in thickness. Generally, the last digit indicates the magnetization direction of the square magnet, for example, for the magnet F40x25x10, the magnetization direction is the 10mm side, which means the direction of magnetization is along the height. The NS poles are located on the two largest surfaces, which are the 40x25mm sides.

The dimensions of the ring are indicated by the outer diameter DX the inner diameter DX the height. For example, the ring magnet with D40XD19X8 indicates an outer diameter of 40mm, an inner diameter of 19mm, and a height of 8mm. The height is also known as the thickness. Currently, rings are also divided into straight holes and counterbored holes. Straight holes are drilled vertically, while counterbored holes are divided into large holes and small holes, with the depth of the large holes and the depth of the small holes being commonly known as screw holes.

【4】Spherical magnets are simply indicated by the diameter D. For example, D8MM indicates a magnet with a diameter of 8 millimeters.

【Reminder】

1. Neodymium-Iron-BoronAll high-magnet units are in millimeters.Therefore, when you purchase, please ensure to check the exact dimensions to avoid purchasing the wrong product.

Neodymium-iron-boronStrong magnets are fragile.In particular, when working with thin slices or long strips, it is especially important to be careful with the operation, especially when separating the magnets.Please be careful to move the wrong wayDo not directly break it apart, but keep a certain distance after separating.

3. Neodymium-iron-boron magnets with a surface electroplating layer have a certain anti-rust and corrosion resistance, but if they are not used in time, Please keep in a dry environment.。

4. Neodymium-iron-boron magnets are very strong, soPlease stay away from your related electronic products.For example, such as magnetic cards, mobile phones, etc.

The different series of neodymium iron boron (NdFeB) magnets have different temperature resistance limits. Generally, they can withstand temperatures up to 80°C. We can also custom-make magnets with better temperature resistance, such as up to 100°, 150°, 180°C, etc. The highest temperature resistance for NdFeB magnets is 220°C, and there are few companies in the domestic market that can achieve this.