large square strong magnet, ndfeb magnet, strong magnet, ceramic tile

Strong Magnet Large Square 

Magnet CompositionProduct Description:

1. Temperature: When selecting neodymium iron boron magnets, customers should choose the appropriate magnet grade based on their operating temperature. If the operating temperature exceeds the magnet grade's bearing temperature, the magnet will gradually demagnetize until it becomes non-magnetic. Please ensure that you confirm the operating temperature and the grade suitable for your use before placing an order.
2. Environment If the magnetic device is in a sealed state, it is possible to choose magnetic iron with non-electroplated or white zinc plated surface, which can save costs. If the magnetic iron is exposed to humid air, especially in the salt mist environment, it is recommended to consider using magnetic iron with surface nickel plating. The magnetic iron should be stored in a dry and constant temperature environment, separated with plastic, wood, hard paper, foam, etc., and wrapped well. It should be away from iron and easily magnetized items, such as monitors, bank cards, computers, TVs, mobile phones, etc.
3. User Objectives Regarding environmental protection, users in relatively developed countries, such as North America, Europe, and others, should pay special attention to environmental matters. Exports must comply with the SGS EU six standards. For users in developing or underdeveloped countries, environmental requirements are not given much consideration.
4、Handling and Storing NdFeB magnets are hard, brittle, and have strong magnetic fields. They should be handled with care (especially for large sizes and thin pieces). When handling magnets, be careful not to impact them, as they may attract or repel each other or other iron objects. This can easily lead to damage or finger injuries due to impact. Since NdFeB is a multi-metal alloy material with a density between 7.45, it is heavy and brittle. Therefore, special care should be taken when handling to prevent breakage. When storing, it is also important to maintain a dry environment and not to directly pile them on the ground. It is best to place them on thick cardboard or on shelves.
5、 Use Instructions: When two magnets are attracted to each other and cannot be separated, it is recommended to push them apart flatly, rather than forcefully twist or pry. With your left hand, firmly hold the entire length of the magnet, and with your right hand, use your index finger and thumb to move the magnet horizontally. After moving the magnet, do not immediately throw it back into the magnet pile. Please immediately isolate the magnet. Handle with care, keep it away from iron or magnetic objects by about 16 centimeters (6.3 inches), or wrap it in paper and pack it thickly. This will be safer. If you need to put the magnet back into the entire length of the magnet, please slowly put it back, and start to move it in from the edge at a close distance. Always hold the magnet firmly until it has been moved in completely.

Customer Notice:

Before purchasing neodymium iron boron magnets, please be aware of the following matters:
1. The magnetic iron sold by Yiwu Haoci Magnetic Materials Factory belongs to neodymium iron boron rare earth permanent magnets, which are all high-intensity magnets. They are the highest commercially available magnetic materials, and are rightly called the "magnetic king" due to their excellent magnetic properties. Please rest assured to purchase and use with caution.
2. Our company produces a variety of specifications, including round, square, circular, irregular, trapezoidal, tile-shaped, spherical, and irregular shapes. We can custom-make high-strength neodymium iron boron magnets based on your samples. All our magnet sizes are measured in millimeters.
Circular sizes are generally denoted by the letter D, which stands for diameter (for convenience, most people currently use the letter D instead of the special symbol Φ). For example, D10X1MM indicates a magnet with a diameter of 10 millimeters and a thickness of 1 millimeter. The letter X here represents the mathematical symbol for "times".
The size of the square is generally represented by the symbol F, where the dimensions are length X width X height. For example, F50x25x13MM indicates that the square magnet is 50mm long, 25mm wide, and 13mm thick. Generally, the last digit indicates the magnetization direction of the square magnet, such as for F50x25x13, the magnetization direction is the 13mm side, which means the direction of the height-wise magnetization. The NS poles are on the two largest sides, which are the 50x25 sides.
The size specification of a ring magnet is represented by its outer diameter (DX), inner diameter (DX), and height. For example, a ring magnet with a size of D32XD18X6 indicates an outer diameter of 32mm, an inner diameter of 18mm, and a height of 6mm. The height is also known as the thickness. Currently, ring magnets 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 referred to as screw holes.
III. Our company can produce a variety of grades of neodymium iron boron magnets, as follows:
N35, N38, N40, N42, N45, N48, N50, N52 - Maximum operating temperature: 80°C
35M, 38M, 40M, 42M, 45M, 48M, 50M Maximum operating temperature: 100 degrees Celsius
33H, 35H, 38H, 40H, 42H, 45H, 48H Maximum operating temperature: 120 degrees Celsius
30SH, 33SH, 35SH, 38SH, 40SH, 42SH - Maximum operating temperature: 150°C
30UH, 33UH, 35UH, 38UH, 40UH - Maximum operating temperature: 180 degrees Celsius
30EH 33EH 35EH 38EH 最大工作温度200度 30AH 33AH 35AHMaximum operating temperature: 230 degrees Celsius
33, 35, 38, 40, and 42 represent the maximum magnetic energy product. The maximum magnetic energy product of N33 neodymium iron boron material is about 33MGOe; the maximum magnetic energy product of N35 neodymium iron boron material is about 35MGOe; the maximum magnetic energy product of N40 neodymium iron boron material is about 40MGOe. The conversion between MGOe and kA/m3 is 1MGOe = 8kA/m3, which means the maximum magnetic energy product of N40 is about 320kA/m3.
The higher the grade of the magnet, the stronger its magnetic force, and the corresponding price is also higher. Therefore, the specific grade should be determined according to the actual needs of the customer. In general, products with low requirements such as packaging, machinery, and stationery are mainly selected with n33 grade. Magnets for medium-low-grade loudspeakers are mostly selected with n35 grade.
Sintered Neodymium Iron Boron Magnets, with an incredible super magnetic force, theoretically have a maximum attraction force hundreds of times their own weight, making them the strongest permanent magnets currently available. Of course, the larger the magnet, the stronger the magnetic force. If you need to custom-make them, please contact our customer service, stating the dimensions, grade, quantity, electroplating layer, tolerance requirements, and magnetization direction you require. We will produce them according to your specifications.