Great Magtech (Xiamen) Electric Co., Ltd is one of the most reliable manufacturers and suppliers of special shaped neodymium magnet rare earth customized step magnet in China. We warmly welcome you to wholesale high quality special shaped neodymium magnet rare earth customized step magnet from our factory. Good service and reasonable price are available.
What are the Special Shaped Magnets?
Common special-shaped magnets include concave-convex magnets, slotted magnets, horseshoe magnets, biased holes, side hole magnets,cut-angle magnets, and more. The processing of each type of special-shaped magnet is different because it is a customized product and depends on the detailed parameter information of the product. The processing time and cost of special-shaped magnets are much higher than other conventional magnets. The material of magnets is relatively brittle, and the processing procedures are more complicated. Generally, grinding and wire cutting are used to process them. These processing methods can change their shape. It will change its original magnetism and will not demagnetize it.
What is the Purpose of Special Shaped Custom Magnets
Samarium cobalt magnets have the characteristics of high temperature resistance, bright metal color, and high value.
Permanent magnet ferrite, because its high temperature resistance is better than NdFeB. In order to realize the matching of micro-motors, special ferrites have high process cost requirements and a high scrap rate, because simple fractures may be worn corners.
Rotor magnet permanent magnet motors with NdFeB magnets as accessories have the advantages of small size, light weight, large moment-to-inertia ratio, fast response of servo system, large power, speed, component ratio, large starting torque, and energy saving. Motor magnets and motor magnets are mainly NdFeB arc magnets, NdFeB ring magnets, or NdFeB bar magnets, which can be used in different magnet motors, such as AC motors, DC motors, linear motors, brushless motors, etc.
Special Shaped Custom Magnets Production Process
Shaped magnets are irregular in shape and mainly serve specific needs. With the development of consumer electronic products towards complex functions and miniaturization, permanent magnets, which are often key components, also need to comply with this trend. Special-shaped magnets are mainly limited to special neodymium magnets and special samarium cobalt magnets. The machining process of special-shaped magnets is much more complicated than that of conventional special-shaped magnets.
How to Choose the Magnet?
① Magnetic requirements,
②Temperature requirements for the working of the magnet,
③What is the external environment of the magnet?
Thereby selecting the desired coating for the magnet.
The choice of magnetic force is to choose the grade according to your size; the temperature is specific,
N series, resistant to below 80 degrees;
H series, resistant to 120 degrees;
SH series, resistant to 150 degrees;
UH series, resistant to 180 degrees;
EH and AH, resistant to more than 200 degrees;
| Grade | Br (kGs) | Br (T) | Hcb (kOe) | Hcb (kA/m) | Hcj (kOe) | Hcj (kA/m) | (BH)max (MGOe) | (BH)max (kJ/m³) | Working Temp. (°C) |
|---|---|---|---|---|---|---|---|---|---|
| N35 | 11.7-12.2 | 1.17-1.22 | ≥10.9 | ≥868 | ≥12 | ≥955 | 33-36 | 263-287 | ≤80 |
| N38 | 12.2-12.5 | 1.22-1.25 | ≥11.3 | ≥899 | ≥12 | ≥955 | 36-39 | 287-310 | ≤80 |
| N40 | 12.5-12.8 | 1.25-1.28 | ≥11.4 | ≥907 | ≥12 | ≥955 | 38-41 | 302-326 | ≤80 |
| N42 | 12.8-13.2 | 1.28-1.32 | ≥11.5 | ≥915 | ≥12 | ≥955 | 40-43 | 318-342 | ≤80 |
| N45 | 13.2-13.8 | 1.32-1.38 | ≥11.6 | ≥923 | ≥12 | ≥955 | 43-46 | 342-366 | ≤80 |
| N48 | 13.8-14.2 | 1.38-1.42 | ≥11.6 | ≥923 | ≥12 | ≥876 | 46-49 | 366-390 | ≤80 |
| N50 | 14.0-14.5 | 1.42-1.45 | ≥12.0 | ≥955 | ≥11 | ≥876 | 48-51 | 382-406 | ≤80 |
| N52 | 14.3-14.8 | 1.45-1.50 | ≥11.0 | ≥876 | ≥11 | ≥876 | 50-53 | 398-422 | ≤80 |
| N54 | 14.5-15.0 | 1.50-1.55 | ≥11.0 | ≥876 | ≥11 | ≥876 | 52-55 | 414-438 | ≤70 |
| 35M | 11.7-12.2 | 1.17-1.22 | ≥10.9 | ≥868 | ≥14 | ≥1114 | 33-36 | 263-287 | ≤100 |
| 38M | 12.2-12.5 | 1.22-1.25 | ≥11.3 | ≥899 | ≥14 | ≥1114 | 36-39 | 287-310 | ≤100 |
| 40M | 12.5-12.8 | 1.25-1.28 | ≥11.6 | ≥923 | ≥14 | ≥1114 | 38-41 | 302-326 | ≤100 |
| 42M | 12.8-13.2 | 1.28-1.32 | ≥12.0 | ≥955 | ≥14 | ≥1114 | 40-43 | 318-342 | ≤100 |
| 45M | 13.2-13.8 | 1.32-1.38 | ≥12.5 | ≥955 | ≥14 | ≥1114 | 43-46 | 342-366 | ≤100 |
| 48M | 13.6-14.3 | 1.36-1.43 | ≥12.9 | ≥1027 | ≥14 | ≥1114 | 46-49 | 366-390 | ≤100 |
| 50M | 14.0-14.5 | 1.40-1.45 | ≥13.0 | ≥1033 | ≥14 | ≥1114 | 48-51 | 382-406 | ≤100 |
| 35H | 11.7-12.2 | 1.17-1.22 | ≥10.9 | ≥868 | ≥17 | ≥1353 | 33-36 | 263-287 | ≤120 |
| 38H | 12.2-12.5 | 1.22-1.25 | ≥11.3 | ≥899 | ≥17 | ≥1353 | 36-39 | 287-310 | ≤120 |
| 40H | 12.5-12.8 | 1.25-1.28 | ≥11.6 | ≥923 | ≥17 | ≥1353 | 38-41 | 302-326 | ≤120 |
| 42H | 12.8-13.2 | 1.28-1.32 | ≥12.0 | ≥955 | ≥17 | ≥1353 | 40-43 | 318-342 | ≤120 |
| 45H | 13.2-13.8 | 1.32-1.38 | ≥12.1 | ≥963 | ≥17 | ≥1353 | 43-46 | 342-366 | ≤120 |
| 48H | 13.6-14.3 | 1.36-1.43 | ≥12.5 | ≥955 | ≥17 | ≥1353 | 46-49 | 366-390 | ≤120 |
| 35SH | 11.7-12.2 | 1.17-1.22 | ≥11.0 | ≥876 | ≥20 | ≥1592 | 33-36 | 263-287 | ≤150 |
| 38SH | 12.2-12.5 | 1.22-1.25 | ≥11.4 | ≥907 | ≥20 | ≥1592 | 36-39 | 287-310 | ≤150 |
| 40SH | 12.5-12.8 | 1.25-1.28 | ≥11.8 | ≥939 | ≥20 | ≥1592 | 38-41 | 302-326 | ≤150 |
| 42SH | 12.8-13.2 | 1.28-1.32 | ≥12.4 | ≥987 | ≥20 | ≥1592 | 40-43 | 318-342 | ≤150 |
| 45SH | 13.2-13.8 | 1.32-1.38 | ≥12.6 | ≥1003 | ≥20 | ≥1592 | 43-46 | 342-366 | ≤150 |
| 28UH | 10.2-10.8 | 1.02-1.08 | ≥9.6 | ≥764 | ≥25 | ≥1990 | 26-29 | 207-231 | ≤180 |
| 30UH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | ≥25 | ≥1990 | 28-31 | 223-247 | ≤180 |
| 33UH | 11.3-11.7 | 1.13-1.17 | ≥10.7 | ≥852 | ≥25 | ≥1990 | 31-34 | 247-271 | ≤180 |
| 35UH | 11.8-12.2 | 1.18-1.22 | ≥10.8 | ≥860 | ≥25 | ≥1990 | 33-36 | 263-287 | ≤180 |
| 38UH | 12.2-12.5 | 1.22-1.25 | ≥11.0 | ≥876 | ≥25 | ≥1990 | 36-39 | 287-310 | ≤180 |
| 40UH | 12.5-12.8 | 1.25-1.28 | ≥11.3 | ≥899 | ≥25 | ≥1990 | 38-41 | 302-326 | ≤180 |
| 28EH | 10.4-10.9 | 1.04-1.09 | ≥9.8 | ≥780 | ≥30 | ≥2388 | 26-29 | 207-231 | ≤200 |
| 30EH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | ≥30 | ≥2388 | 28-31 | 223-247 | ≤200 |
| 33EH | 11.3-11.7 | 1.13-1.17 | ≥10.5 | ≥836 | ≥30 | ≥2388 | 31-34 | 247-271 | ≤200 |
| 35EH | 11.7-12.2 | 1.17-1.22 | ≥11.0 | ≥876 | ≥30 | ≥2388 | 33-36 | 263-287 | ≤200 |
| 38EH | 12.2-12.5 | 1.22-1.25 | ≥11.3 | ≥899 | ≥30 | ≥2388 | 36-39 | 287-310 | ≤200 |
| 28AH | 10.4-10.9 | 1.04-1.09 | ≥9.9 | ≥787 | ≥30 | ≥2624 | 26-29 | 207-231 | ≤230 |
| 30AH | 10.8-11.3 | 1.08-1.13 | ≥10.3 | ≥819 | ≥30 | ≥2624 | 28-31 | 223-247 | ≤230 |
| 33AH | 11.3-11.7 | 1.13-1.17 | ≥10.6 | ≥843 | ≥30 | ≥2624 | 31-34 | 247-271 | ≤230 |
Package of Magnet
The magnets are meticulously packaged during transit to prevent edge chipping, scratching, and accidental attraction. They are first stacked with protective interleaving or securely wrapped before being placed into sturdy inner cartons; these inner cartons are then packed into foam-lined export outer cartons to provide additional shock protection. Each carton is clearly labeled for easy identification, ensuring the safe delivery and efficient warehouse management of bulk industrial orders.
Safety Warning of Use Magnet
1. Please make sure to keep the magnet out of reach of children and pets; it is not a toy, and small magnets can cause a choking hazard.
2. Pay attention to your fingers, because they are very strong magnets; it is difficult to pull apart from a distance and fly together quickly, so it is easy to get caught between the suction poles.
3. Keep magnets away from medical devices, electronic products, and magnetic media, as our magnets have strong magnetic fields that may affect and/or destroy the function of these medical devices, electronic products, and magnetic media.
4. Magnets are fragile; if they hit each other, they may crack, shatter or shatter. So be sure to handle them with care and wear eye protection glasses.
Certification of Magnet
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