Basic Info.
Application
Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Motor Magnet
Grade
N35-N54, N35M-N52M, N33H-N50H, N33H-N50H, N33SH-N4
Transport Package
Antimagnetic Packaging / Neutral Packing
Product Description
Different Sizes Hollow Ring Shape Neodymium Magnet for Loudspeaker| Product Name | Different Sizes Hollow Ring Shape Neodymium Magnet for Loudspeaker |
| Shape | Ring (Disc, , Block, Hexagon, Ring, Cylindrical, Rod, Bar, Arc, Cylinder, Rectangle, Countersunk, Arc, Segmented, Trapezoid, Irregular shapes are available) |
| Magnetized Direction | Through the thickness or through the diameter |
| Type of coating | Nickel ( Zinc, Gold or Black Epoxy are available) |
| Tolerance in size | +/-0.1 mm |
| Materials | NdFeB (Neodymium Iron Boron) |
| Dimension | Customized sizes are available. |
| Density | 7.5 (g/cm3) |
| Grade | N35-N54, N35M-N52M, N33H-N50H, N33H-N50H, N33SH-N48SH, N30UH-N45UH, N28EH-N38EH |
| Specification | 1. Made by mixed neodymium iron boron powder, through the processes of Strip casting, Hydrogen decrepitation, Jet milling, Pressing, Isostatic pressing, Sintering, Grinding, Slicer, Surface treatment
2. The most powerful magnets are available and could be directly made into various complex shapes
3. Precise dimension
4. High performance
5. Uniform magnetism
6. Rust-proof materials(coating Zinc, Nickel, Epoxy, Gold and so on)
7. Volume production Carton or Pallets SGS |
| Packing Method | Several pieces to Styrofoam, shield plate, carton, pallet. |
| Certification | SGS |
| Lead-time | 7-22days according to the order |
2. Product show
3. The grades available | Series | Grade | Remanence | Intrinsic Coercive force | Max. Energy Product | Max. Working Temp |
| Br | Hcj | (BH) max |
| T | kGs | KA/m | KOe | KJ/m3 | MGOe | ºC |
| N | N35 | 1.17-1.24 | 11.7-12.4 | ≥955 | ≥12 | 263-286.5 | 33-36 | 80 |
| N38 | 1.22-1.30 | 12.2-13.0 | ≥955 | ≥12 | 287-310 | 36-39 | 80 |
| N40 | 1.26-1.32 | 12.6-13.2 | ≥955 | ≥12 | 302-326 | 38-41 | 80 |
| N42 | 1.29-1.35 | 12.9-13.5 | ≥955 | ≥12 | 318-342 | 40-43 | 80 |
| N45 | 1.33-1.38 | 13.3-13.8 | ≥955 | ≥12 | 334-366 | 42-46 | 80 |
| N48 | 1.36-1.42 | 13.6-14.2 | ≥876 | ≥12 | 358-390 | 45-49 | 80 |
| N50 | 1.40-1.45 | 14.0-14.5 | ≥876 | ≥12 | 374-406 | 47-51 | 80 |
| N52 | 1.43-1.48 | 14.3-14.8 | ≥876 | ≥12 | 390-422 | 49-53 | 80 |
| N54 | 1.45-1.51 | 14.5-15.1 | ≥876 | ≥12 | 398-430 | 50-55 | 80 |
| M | N35M | 1.17-1.24 | 11.7-12.4 | ≥1114 | ≥14 | 263-286 | 33-36 | 100 |
| N38M | 1.22-1.30 | 12.2-13.0 | ≥1114 | ≥14 | 287-310 | 36-39 | 100 |
| N38MT | 1.22-12.6 | 12.2-12.6 | ≥1115 | ≥15 | 287-310 | 36-39 | 100 |
| N40M | 1.26-1.32 | 12.6-13.2 | ≥1114 | ≥14 | 302-326 | 38-41 | 100 |
| N42M | 1.29-1.35 | 12.9-13.5 | ≥1114 | ≥14 | 318-342 | 40-43 | 100 |
| N45M | 1.32-1.38 | 13.2-13.8 | ≥1114 | ≥14 | 334-366 | 42-46 | 100 |
| N48M | 1.37-1.43 | 13.7-14.3 | ≥1114 | ≥14 | 358-390 | 45-49 | 100 |
| N50M | 1.40-1.45 | 14.0-14.5 | ≥1114 | ≥14 | 374-406 | 47-51 | 100 |
| N52M | 1.42-1.48 | 14.2-14.8 | ≥1114 | ≥14 | 390-422 | 49-53 | 100 |
| H | N35H | 1.17-1.24 | 11.7-12.4 | ≥1350 | ≥17 | 263-286 | 33-36 | 120 |
| N38H | 1.22-1.30 | 12.2-13.0 | ≥1350 | ≥17 | 287-310 | 36-39 | 120 |
| N40H | 1.26-1.32 | 12.6-13.2 | ≥1350 | ≥17 | 302-326 | 38-41 | 120 |
| N42H | 1.29-1.35 | 12.9-13.5 | ≥1350 | ≥17 | 318-342 | 40-43 | 120 |
| N45H | 1.31-1.37 | 13.1-13.7 | ≥1350 | ≥17 | 335-366 | 42-46 | 120 |
| N48H | 1.37-1.43 | 13.7-14.3 | ≥1274 | ≥16 | 358-390 | 45-49 | 120 |
| N50H | 1.40-1.45 | 14.0-14.5 | ≥1274 | ≥16 | 374-405 | 47-51 | 120 |
| SH | N33SH | 1.14-1.21 | 11.4-12.1 | ≥1592 | ≥20 | 247-270 | 31-34 | 150 |
| N35SH | 1.17-1.24 | 11.7-12.4 | ≥1592 | ≥20 | 263-287 | 33-36 | 150 |
| N38SH | 1.22-1.29 | 12.2-12.9 | ≥1592 | ≥20 | 287-310 | 36-39 | 150 |
| N40SH | 1.26-1.32 | 12.6-13.2 | ≥1592 | ≥20 | 302-326 | 38-41 | 150 |
| N42SH | 1.29-1.35 | 12.9-13.5 | ≥1592 | ≥20 | 318-342 | 40-43 | 150 |
| N45SH | 1.32-1.38 | 13.2-13.8 | ≥1592 | ≥20 | 335-366 | 42-46 | 150 |
| N48SH | 1.36-1.39 | 13.6-13.9 | ≥1592 | ≥20 | 335-366 | 42-46 | 150 |
| UH | N30UH | 1.08-1.16 | 10.8-11.6 | ≥1990 | ≥25 | 223-247 | 28-31 | 180 |
| N33UH | 1.14-1.21 | 11.4-12.1 | ≥1990 | ≥25 | 247-271 | 31-34 | 180 |
| N35UH | 1.17-1.24 | 11.7-12.4 | ≥1990 | ≥25 | 263-286 | 33-36 | 180 |
| N38UH | 1.22-1.29 | 12.2-12.9 | ≥1990 | ≥25 | 287-310 | 36-39 | 180 |
| N40UH | 1.26-1.32 | 12.6-13.2 | ≥1990 | ≥25 | 302-326 | 38-41 | 180 |
| N42UH | 1.29-1.35 | 12.9-13.5 | ≥1990 | ≥25 | 318-342 | 40-43 | 180 |
| EH | N30EH | 1.08-1.15 | 10.8-11.5 | ≥2388 | ≥30 | 223-247 | 28-31 | 200 |
| N33EH | 1.14-1.21 | 11.4-12.1 | ≥2388 | ≥30 | 247-271 | 31-35 | 200 |
| N35EH | 1.17-1.24 | 11.7-12.4 | ≥2388 | ≥30 | 263-287 | 33-36 | 200 |
| N38EH | 1.22-1.29 | 12.2-12.9 | ≥2388 | ≥30 | 287-310 | 36-39 | 200 |
| AH | N28AH | 1.04-1.12 | 10.4-11.2 | ≥2627 | ≥33 | 207-231 | 26-29 | 220 |
| N30AH | 1.08-1.15 | 10.8-11.5 | ≥2627 | ≥33 | 223-247 | 28-31 | 220 |
| N33AH | 1.14-1.21 | 11.4-12.1 | ≥2627 | ≥33 | 247-271 | 31-34 | 220 |
5. NdFeB magnet application field
6. Workshop show7. Testing Equipment8. Patents
9. Package
The regular package is Neutral packing, Shield packing, Vacuum packing, or Pallet. The special package will follow the customer's requirements.
10. Shipping a: Courier (TNT, DHL, FedEx, UPS etc.), Airfreight, or Sea freight.
b: If the weight is under 40Kgs, we would recommend to send them with shielding boxes.
c: If the weight is between 40Kgs-100Kgs, it can be sent by courier or Airfreight.
d: If the weight is over 100Kgs, we would recommend to send them by Sea freight.
11. More About Us Ganzhou Fortune Electronic Co., Ltd. ( Stock Code: 872572) was established in 2011, as a national high-tech enterprise, which is engaged in manufacturing and sales of high-performance rare earth permanent magnet materials and its application products. We have already possessed the annual production capacity of 2000 tons of High-performance Sintered NdFeB rare earth permanent magnets till now.
Fortune's products are widely used in many fields, such as
consumer electronics,
new energy vehicles, UAV, wind generation, elevators, medical devices, energy-saving household appliances, rail transit, industrial energy-saving motor, permanent magnet relay, etc...
Fortune has advanced technology and first-class production analysis and testing equipment, which can produce bulk high-performance magnetic steels, such as N54, 52M, 52H, 50SH, 42UH, 38EH, and 30AH. They could keep products with high performance, high consistency, high reliability, and low weight loss performance.
Fortune has professional R&D teams, such as "Jiangxi Rare Earth Permanent Magnet Materials and Devices Engineering R&D Center", "Jiangxi Postdoctoral Innovation Practice Base", "Jiangxi Rare Earth Functional Materials Manufacturing Innovation Center", "Ganzhou Rare Earth Permanent Magnet Materials and Device Engineering Technology R&D Center". Through close Industry-University-Research cooperation with famous colleges and scientific research institutes at home and abroad, Fortune keeps in line with the international leading level of technology and quality.
FAQ1. Q: Which is the strongest type of magnet? A: Neodymium (more precisely Neodymium-Iron-Boron) magnets are the strongest permanent magnets in the world.
2. Q: What are the size limitations on manufacturing neodymium magnets? A: The limits include:
--- 2" max in magnetized direction;
--- 4" max diameter for discs and rings;
--- 4" max length and width for blocks;
--- 1/32" minimum on thickness on any magnet;
--- 1/16" minimum diameter on outer diameter;
--- 1/16" minimum diameter on any hole
3. Q: What information do we need when you send an inquiry? A: If you have any inquiry, please kindly advise the following items:
- Dimensions, shape, and drawing with tolerances.
- Material grade or magnetic properties.
- Magnetic direction, quantity, surface coating (if necessary).
- Any special packing, delivering or other requirements.
4. Q: What about the sample time and cost? A: 7-15 days if the samples are customized;
3-7 days for our existing samples for reference;
The sample cost is negotiable.
5. Q: What about the delivery time of bulk production? A: 10-20days depends on design and quantity.
Fast Delivery once you confirmed the design, we can produce and deliver it as fast as possible.
6. Q: Could you provide the shortest lead time? A: That's based on the available material stock, we will try our best to satisfy you if any urgency.
7. Q: What is your MOQ? A: 10-100-500-1000-5000-10000-200000 pcs etc. depends on different sizes, items, design, and processes. MIN and a SMALL quantity can be acceptable.
8. Q: What's the payment method? A: L/C
, T/T in advance (telegraphic transfer-bank order) for small order or samples order
Western Union cash - for small order or samples order.
Other payment: Paypal.
Different areas may exist some differences.
9. Q: Could we pay a visit to your factory? A: Yes, of course, warmly welcome if you can visit our factory.
10. Q: Where is your factory? A: Our factory locates in No.5 Mannifen Road, Economic and Technological Development Zone, Ganzhou city, Jiangxi Province, China. It's around 10 minutes from Ganzhou Airport to our factory by car.
11. Q: If I have more questions, where can I get the answers? A: Any questions, please feel free to contact us at any time.
Cell: +86 177 7970 4448
Finally---Why do you choose us? 1. Strong R&D team
2. Professional Sales team
3. 6 years export experiences make us satisfy you better.
4. High and stable quality
5. Reasonable direct factory price
6. Fast and on-time delivery.
7. Qualified by ISO9001, ISO14001, OHSAS 18001, RoHS, SGS, and REACH.
Inquiry Hotline:Cell: +0086 177 7970 4448
Address:
No. 5, Mannifen Road, Economic and Technological Development Zone, Ganzhou City, Jiangxi Province, Ganzhou, Jiangxi, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Auto, Motorcycle Parts & Accessories, Bags, Cases & Boxes, Computer Products, Consumer Electronics, Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Toys
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, OHSAS/ OHSMS 18001, IATF16949
Company Introduction:
Ganzhou Fortune Electronic Co., Ltd. ( Stock Code: 872572) was established in 2011, as a national high-tech enterprise, which is engaged in R&D, manufacturing and sales of high performance rare earth permanent magnet materials and its application products. Our company has already possessed the annual production capacity of 3000 tons of High Performance Sintered NdFeB rare earth permanent magnets now.
Fortune′s products are widely used in many fields, such as new energy vehicles, electronic information, UAV, wind generation, elevators, medical devices, energy-saving household appliances, rail transit, industrial energy-saving motor, permanent magnet relay, etc...
Fortune has advanced technology and first-class production analysis and testing equipment, which can mass produce high-performance magnetic steels such as N54, 52M, 52H, 50SH, 42UH, 38EH and 30AH. They could keep products have high performance, high consistency, high reliability and low weight loss performance.
Fortune now has Jiangxi Rare Earth Permanent Magnet Materials and Devices Engineering R&D Center, Jiangxi Postdoctoral Innovation Practice Base, Jiangxi Rare Earth Functional Materials Manufacturing Innovation Center, Ganzhou Rare Earth Permanent Magnet Materials and Device Engineering Technology R&D Center. Through close Industry-University-Research cooperation with famous colleges and scientific research institutes at home and abroad, Fortune keeps in line with the international leading level of technology and quality.
){kind=link}