Large square of strong magnet 

Magnet ingredientsProduct description: 

 1, the temperature   When choosing nd-fe-b magnets, customers should choose their own magnetic plate according to their working temperature. If the working temperature is higher than the bearing temperature of the magnetic plate, the magnet will slowly demagnetize until there is no magnetism. Please be sure to confirm the working temperature and proper brand number before ordering. 
2, environmental   If the magnet is installed in the sealed state, the non-plated or white-zinc plated magnet can be considered to save cost. If the magnet is exposed to moist air, especially in the state of salt fog, it is recommended to consider nickel-plated magnet. Magnets should be stored in a dry, constant temperature environment, to be separated with plastic, wood, cardboard, foam, and so on and wrapped. Should be far away from iron and easy to be magnetized goods, such as monitors, bank CARDS, computers, televisions, mobile phones and so on. 
3. User object   As for environmental protection, users in relatively developed countries, such as North America and Europe, should pay special attention to environmental protection, and the export use must pass the SGS European Union's six standards. For domestic or some less developed countries users, not too much consideration of environmental requirements. 
 4. Carrying and stacking     Nd-fe-b magnetic materials are hard, brittle and strong. They should be placed lightly (especially large size and thin sheet). When strong magnets or other iron devices are attracted or separated, they should be operated carefully without impact. Otherwise it is easy to cause damage to the magnet or finger due to collision. This is because ndfeb is a polymetallic alloy with a density of 7.45 and has a heavy and brittle characteristic. So you should be careful when carrying and carrying, so as not to break the magnet. The storage should also keep the environment dry, not directly stacked on the ground, preferably with thick cardboard or placed on the shelf.   
5. Notes for use     When the magnets are drawn to each other and cannot be separated, it is recommended to push them on the other side. Use your left hand to fix the magnet. Use your right hand with your forefinger and thumb to move the magnet horizontally. Take lightly put, be apart from iron or magnetic thing farther place (16 centimeters or so) or the paper that take out of paper wrap thick good, such ability is safer. If you need to put the magnet back inside the whole magnet, put it back slowly and move in from the edge. Hold the magnet until it has moved in.

Customers need to know: 

Customers should know the following before purchasing ndfeb magnets:         
Yiwu hao magnetic material factory sales of this kind of magnets are nd-fe-boron rare earth permanent magnet, are strong magnets, is currently found the highest performance of commercial magnets. The best and strongest magnetic material is the most magnetic. It is called \"magnetic king\" due to its excellent magnetic energy. Please feel free to buy it and use it carefully.         
 2. Our company produces nd-fe-b strong magnets such as round, square, circular, shaped, trapezoid, tile, spherical and irregular figure, which can be manufactured by customized products. All our specifications of magnets are measured in millimeters.        
     【 1 】 generally expressed in D diameter circular size (due to belong to the special symbol for the convenience of the majority to use D instead of Φ), such as D10X1MM represents is 10 mm in diameter, 1 mm is the thickness of the magnet. X, this is the mathematical notation, the multiplication sign.        
     [2] the size of the square is long X, wide X and high. For example, in the case of F50x25x13MM, it means that the length of square magnet is 50 mm, the width is 25 mm and the thickness is 13 mm. Generally, a number on the last surface indicates the direction of magnetization of square magnet. For example, in the case of F50x25x13, the direction of magnetization is 13 mm, that is, the direction of height magnetization. NS is on the two largest faces, which is 50 by 25.        
     The dimension of the ring is the outside diameter, DX, and the inside diameter, DX height. For example, the ring magnet of D32XD18X6 represents an outer diameter of 32mm, an inner diameter of 18mm and a height of 6mm. Height is also called thickness. At present, the ring is also divided into straight hole and countersunk hole. The hole of straight hole is drilled vertically, while the countersunk hole is divided into big hole and small hole. 
Iii. Our company can produce various types of ndfeb magnets as follows:
       N35 N38 N40 N42 N45 N48 N50 N52                     Maximum operating temperature 80 degrees   
           35 m. 38 m. 40 m 42 m. 45 m. 48 m 50 m.                         Maximum working temperature is 100 degrees   
           33 h 35 h 38 h 40 h 42 h 45 h 48 h.                         Maximum working temperature is 120 degrees   
           30SH 33SH 35SH 38SH 40SH 42SH                               Maximum operating temperature 150 degrees   
           30UH 33UH 35UH 38UH 40UH                                 Maximum operating temperature 180 degrees   
           30 eh eh eh eh 38 35 33                                   Maximum working temperature is 200 degrees                                 30 35 33 ah ah ah                                     Maximum working temperature is 230 degrees    
33, 35, 38, 40 and 42 represent the maximum magnetic energy product. The maximum magnetic energy of N33 nd-fe-b material is about 33MGOe. The maximum magnetic energy of N35 nd-fe-b material is about 35MGOe. The maximum magnetic energy of N40 nd-fe-b material is about 40MGOe. The conversion between MGOe and kA/m3 is 1MGOe = 8kA/m3, which means that the maximum magnetic energy product of N40 is about 320kA/m3.      
The higher the brand, the stronger the magnetic, corresponding prices are higher, so the specific needs according to the actual needs of customers to decide. Under general circumstances, such as packaging, machinery, stationery and other products are not high requirements are selected n33 brand. Most of the magnets used for the horn in the lower and middle range are n35.        
The sintered nd-fe-b magnet has an unimagined super-strong magnetic force. Theoretically, the sintered nd-fe-b magnet has a maximum suction force of several hundred times its own weight, which is the most powerful permanent magnet at present. Of course the bigger the size of the magnet the stronger the magnetic force.         If you need custom-made, please contact our customer service to explain the customized size, brand, quantity, electroplating, tolerance requirements, magnetic direction, etc. We will produce according to your requirement.