| Customization: | Available |
|---|---|
| Application: | Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet, VCM Magnet |
| Shape: | Special Shape |
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| Description | Sintered Rare Earth Magnets | |
| Material | Neodymium-Iron-Boron | |
| Working Temperature | Grade | Max. Operating Temperatures |
| N35-N52 | 80°C (176°F) | |
| 33M- 48M | 100°C (212°F) | |
| 33H-48H | 120°C (248°F) | |
| 30SH-45SH | 150°C (302°F) | |
| 30UH-40UH | 180°C (356°F) | |
| 28EH-38EH | 200°C (392°F) | |
| 28AH-35AH | 220°C (428°F) | |
| Magnet Shape | Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more. Customized shapes for Rare Earth Magnets are available. | |
| Magnet Coating | Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more. | |
| Technology Advantage | Depending on advanced R&D center, Quality control team and professional machining technicians, we can surpass our competitors in the stability of quality and superiority of property. | |
| Delivery Advantage | The lead time must be 2-5 days quicker than the industry average because of more flexible machine process control. | |
| Price Advantage | The price is 5-10% cheaper than the industry average because of an excellent and efficient management system. | |
| Application | Rare Earth Magnets are widely used in many fields, such as motors, sensors, microphones, wind turbines, wind generators, VCMs in hard disk drives, printer, switchboard, loudspeakers, magnetic separation, magnetic hooks, magnetic holder, magnetic chuck, common daily use, and so on. | |
| Great Magtech Electric offers an excellent selection of magnetic assembly, magnetic tools, and magnetic equipment for home use, office use, industrial use, computer use and so on. Both our office and factory are located in Ningbo which is a very developed city and a very big seaport. We provide you an extensive range of magnetic assembly, magnetic tool and magnetic equipment. Containing our excellent original design, every product is elaborately produced by our factory. When you use them, you feel so comfortable and wonderful. These tools and assemblies are widely used in your daily life by helping you clean scrap iron and other debris, lift up heavy items and fix objects firmly. And they even have more functions you've never thought of. We appreciate your inquiry and we will give you incomparably good products and services. Welcome to be our distributor. The high quality of our products and the considerate after-sale service will make your business more and more prosperous. If you want to purchase a magnetic assembly, magnetic tool and magnetic equipment, please feel free to contact us. |
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| Some Coatings of Rare Earth Magnets: | ||||
| Surface | Coating | Thickness (Microns) | Color | Resistance |
| Passivation | 1 | Silver Grey | Temporary Protection | |
| Nickel | Ni+Ni | 10-20 | Bright Silver | Excellent against Humidity |
| Ni+Cu+Ni | ||||
| Zinc | Zn | 8-20 | Bright Blue | Good Against Salt Spray |
| C-Zn | Shinny Color | Excellent Against Salt Spray | ||
| Tin | Ni+Cu+Sn | 15-20 | Silver | Superior Against Humidity |
| Gold | Ni+Cu+Au | 10-20 | Gold | Superior Against Humidity |
| Copper | Ni+Cu | 10-20 | Gold | Temporary Protection |
| Epoxy | Epoxy | 15-25 | Black, Red, Grey | Excellent Against Humidity & Salt Spray |
| Ni+Cu+Epoxy | ||||
| Zn+Epoxy | ||||
| Chemical | Ni | 10-20 | Silver Grey | Excellent Against Humidity |
| Parylene | Parylene | 5-20 | Grey | Excellent Against Humidity, Salt Spray. Superior Against Solvents, Gases, Fungi, and Bacteria. |
1. Which is the strongest type of magnet?
Neodymium (more precisely Neodymium-Iron-Boron) magnets are the strongest permanent magnets in the world.
2. What are neodymium magnets? Are they the same as "rare earth"?
Neodymium magnets are a member of the rare earth magnet family. They are called "rare earth" because neodymium is a member of the "rare earth" elements on the periodic table. Neodymium magnets are the strongest of the rare earth magnets and are the strongest permanent magnets in the world.
3. What's the Grade of a magnet?
Atech Neodymium Permanent Magnet is graded according to their maximum energy product, which relates to the magnetic flux output per unit volume. Higher values indicate stronger magnets and range from N35 up to N52. and M, H, SH, UH, EH, AH series, can be customized into a wide range of shapes and sizes with precise tolerances. Multiple choices of coatings and magnetization orientations can meet specific customer requirements. Letters following the grade indicate maximum operating temperatures (often the Curie temperature), which range from M (up to 100 °C) to EH (200 °C) to AH (230 °C)
4. What materials do magnets attract?
Ferromagnetic materials are strongly attracted by a magnetic force. The elements iron (Fe), nickel (Ni), and cobalt (Co) are the most commonly available elements. Steel is ferromagnetic because it is an alloy of iron and other metals.
5. What materials can I use to block/shield magnetic fields?
Magnetic fields cannot be blocked, only redirected. The only materials that will redirect magnetic fields are materials that are ferromagnetic (attracted to magnets), such as iron, steel (which contains iron), cobalt, and nickel. The degree of redirection is proportional to the permeability of the material. The most efficient shielding material is the 80 Nickel family, followed by the 50 Nickel family.
6. How is the strength of a magnet measured?
Gauss meters are used to measure the magnetic field density at the surface of the magnet. This is referred to as the surface field and is measured in Gauss (or Tesla). Pull Force Testers are used to test the holding force of a magnet that is in contact with a flat steel plate. Pull forces are measured in pounds (or kilograms).
7. Can I cut, drill, or machine neodymium magnets?
The Neodymium Iron Boron material is very hard and brittle, so machining is difficult at best.
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