Hot Permanent Magnet Disc Neodymium Magnetic for Speaker
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Product Highlights
- Wide Grade Range: Available in N, M, H, SH, UH, EH, AH grades from N30H to N50.
- High Performance: Maximum energy product up to 51 MGOe with strong coercivity.
- Durable Coating: Nickel coating provides excellent corrosion resistance and durability.
- Versatile Application: Ideal for speakers, motors, electronic products, and industrial magnets.
- Custom Shapes: Cylinder shape available with OEM/ODM customization support.
- Professional Manufacturer: Factory with 11 R&D engineers and advanced production equipment.
- Flexible Payment: Accepts LC and T/T payment terms for secure transactions.
- Fast Delivery: Off-season lead time is one month; peak season 1-3 months.
Product Attributes
- Customization
- Available
- Application
- Electronic Products, Speaker Magnet, Industrial Magnet, Motor Magnet
- Shape
- Cylinder
- Model NO.
- NDFEB
- Coating
- Nickel
- Grade
- N30H-48H
- Transport Package
- as Customer Required
- Trademark
- RCMAG
- Origin
- China
- HS Code
- 85051110
- Production Capacity
- 1000 Tons/Year
Product Images of Hot Permanent Magnet Disc Neodymium Magnetic for Speaker
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Product Description
| Property of the NdFeB | ||||||||||
| Grades | Remanence | Coercive Force | Intrinsic Coercivity | Maximum Energy Product | Curie Temp. | Temp. Coefficient | ||||
| Br | Hcb | Hcj | (BH)max | TC | TW | |||||
| T | KGs | KA/m | KOe | KA/m | Koe | KJ/m3 | MGOe | ºC | ºC | |
| N33 | 1.13-1.18 | 11.3-11.8 | ≥836 | ≥10.5 | ≥955 | ≥12 | 247-263 | 31-33 | 310 | ≤80 |
| N35 | 1.18-1.23 | 11.8-12.3 | ≥868 | ≥10.9 | ≥955 | ≥12 | 263-287 | 33-36 | 310 | ≤80 |
| N38 | 1.22-1.28 | 12.2-12.8 | ≥899 | ≥11.3 | ≥955 | ≥12 | 287-310 | 36-39 | 310 | ≤80 |
| N40 | 1.26-1.31 | 12.6-13.1 | ≥923 | ≥11.6 | ≥955 | ≥12 | 302-326 | 38-41 | 310 | ≤80 |
| N42 | 1.28-1.34 | 12.8-13.4 | ≥923 | ≥11.6 | ≥955 | ≥12 | 318-342 | 40-43 | 310 | ≤80 |
| N45 | 1.34-1.39 | 13.4-13.9 | ≥876 | ≥11.0 | ≥955 | ≥12 | 342-366 | 43-46 | 310 | ≤80 |
| N48 | 1.38-1.42 | 13.8-14.2 | ≥836 | ≥10.5 | ≥876 | ≥11 | 358-390 | 45-48 | 310 | ≤80 |
| N50 | 1.40-1.46 | 14.0-14.6 | ≥836 | ≥10.5 | ≥876 | ≥11 | 374-406 | 47-51 | 310 | ≤80 |
| N35M | 1.18-1.23 | 11.8-12.3 | ≥868 | ≥10.9 | ≥1114 | ≥14 | 263-287 | 33-36 | 320 | ≤100 |
| N38M | 1.22-1.28 | 12.2-12.8 | ≥899 | ≥11.3 | ≥1114 | ≥14 | 287-310 | 36-39 | 320 | ≤100 |
| N40M | 1.26-1.31 | 12.6-13.1 | ≥923 | ≥11.6 | ≥1114 | ≥14 | 302-326 | 38-41 | 320 | ≤100 |
| N42M | 1.28-1.34 | 12.8-13.4 | ≥923 | ≥11.6 | ≥1114 | ≥14 | 318-342 | 40-43 | 320 | ≤100 |
| N45M | 1.34-1.39 | 13.4-13.9 | ≥876 | ≥11.0 | ≥1114 | ≥14 | 342-366 | 43-46 | 320 | ≤100 |
| N33H | 1.14-1.19 | 11.4-11.9 | ≥836 | ≥10.5 | ≥1353 | ≥17 | 247-270 | 31-34 | 330 | ≤120 |
| N35H | 1.18-1.23 | 11.8-12.3 | ≥868 | ≥10.9 | ≥1353 | ≥17 | 263-287 | 33-36 | 330 | ≤120 |
| N38H | 1.22-1.28 | 12.2-12.8 | ≥899 | ≥11.3 | ≥1353 | ≥17 | 287-310 | 36-39 | 330 | ≤120 |
| N40H | 1.26-1.31 | 12.6-13.1 | ≥923 | ≥11.6 | ≥1353 | ≥17 | 302-326 | 38-41 | 330 | ≤120 |
| N42H | 1.28-1.34 | 12.8-13.4 | ≥923 | ≥11.6 | ≥1353 | ≥17 | 318-342 | 40-43 | 330 | ≤120 |
| N30SH | 1.08-1.13 | 10.8-11.3 | ≥810 | ≥10.2 | ≥1592 | ≥20 | 223-247 | 28-31 | 340 | ≤150 |
| N33SH | 1.14-1.19 | 11.4-11.9 | ≥836 | ≥10.5 | ≥1592 | ≥20 | 247-270 | 31-34 | 340 | ≤150 |
| N35SH | 1.18-1.23 | 11.8-12.3 | ≥868 | ≥10.9 | ≥1592 | ≥20 | 263-287 | 33-36 | 340 | ≤150 |
| N38SH | 1.22-1.28 | 12.2-12.8 | ≥899 | ≥11.3 | ≥1592 | ≥20 | 287-310 | 36-39 | 340 | ≤150 |
| N40SH | 1.26-1.31 | 12.6-13.1 | ≥923 | ≥11.6 | ≥1592 | ≥20 | 302-326 | 38-41 | 340 | ≤150 |
| N28UH | 1.03-1.09 | 10.3-10.9 | ≥764 | ≥9.60 | ≥1990 | ≥25 | 207-231 | 26-29 | 350 | ≤180 |
| N30UH | 1.09-1.14 | 10.9-11.4 | ≥812 | ≥10.2 | ≥1990 | ≥25 | 223-247 | 28-31 | 350 | ≤180 |
| N33UH | 1.13-1.17 | 11.3-11.7 | ≥852 | ≥10.7 | ≥1990 | ≥25 | 247-263 | 31-33 | 350 | ≤180 |
| N35UH | 1.17-1.24 | 11.7-12.4 | ≥868 | ≥10.9 | ≥1990 | ≥25 | 263-295 | 33-37 | 350 | ≤180 |
| N28EH | 1.03-1.09 | 10.3-10.9 | ≥780 | ≥9.80 | ≥2388 | ≥30 | 207-231 | 26-29 | 380 | ≤200 |
| N30EH | 1.08-1.13 | 10.8-11.3 | ≥812 | ≥10.2 | ≥2388 | ≥30 | 223-247 | 28-31 | 380 | ≤200 |
| N33EH | 1.14-1.21 | 11.4-12.1 | ≥852 | ≥10.7 | ≥2388 | ≥30 | 247-279 | 31-35 | 380 | ≤200 |
| N35EH | 1.17-1.24 | 11.7-12.4 | ≥868 | ≥10.9 | ≥2388 | ≥30 | 263-295 | 33-37 | 380 | ≤200 |
| N38EH | 1.22-1.29 | 12.2-12.9 | ≥915 | ≥11.5 | ≥2388 | ≥30 | 287-318 | 36-40 | 380 | ≤200 |
| N30AH | 1.08-1.15 | 10.8-11.5 | ≥804 | ≥10.1 | ≥2786 | ≥35 | 223-255 | 28-32 | 380 | ≤230 |
| N33AH | 1.14-1.21 | 11.4-12.1 | ≥852 | ≥10.7 | ≥2786 | ≥35 | 247-279 | 31-35 | 380 | ≤230 |






About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI223184". Items marked "" are certified.
Company Profile
Zhejiang Rongxin Magnet Co., Ltd. (RCMAG) is a high-tech permanent magnet manufacturer in Huzhou China. We are specialized in producting NdFeB magnet & AlNiCo magnet, distributes SmCo magnet, Bounded NdFeB magnet, Ferrite magnet and related assemblies. The annual production capacity is 3400 tons: 2000 tons for NdFeB, 1200 tons for AlNiCo and 200 tons for SmCo. It is one of the largest enterprises in the permanent magnet magnetic material industries. Our skillful sales team is in the branch named Hangzhou Zishan Import & Export Trade Co., Ltd.
We warmly welcome all friends to visit our company and establish business relationship. Thanks!
Hangzhou Rongchang Magnet Co., Ltd started to manufacture AlNiCo magnet. The main grade is AlNiCo2, AlNiCo3, AlNiCo5, AlNiCo6.
Hangzhou Rongjia Magnet Technology Co., Ltd. (RJMAG) was constructed in 2009. It produces NdFeB magnet. The annual output is up to 1000 Tons.
There are 170 staff at present. ISO9001: 2008, TS16949 and RoHS have been approved. Our products are widely used such as magnetic chuck, magnetic separator, sensors, motor, UAV, Electric car, radar, meters, speaker, guitar, toy and hardware tools. The products are widely exported to globe. Especially Europe, North American and South-east Asia.
We have a series of automatical machines to strictly control quality. A professional and hard-working international sales team do the best to keep nice business relationships with a large number of worthy clients in the global market. We warmly welcome the friends to visit our factory and establish business relationship.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 528# Fuqian Street, Industrial Park, Si 'an Town, Changxing County, Hangzhou, Zhejiang, China
-
Registered Capital
- 20,000,000 RMB
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, EXW
-
Average Lead Time
-
Peak Season Lead Time: 1-3 months
Off Season Lead Time: one month -
Nearest Port
- Shanghai Port, Ningbo Port
Our Production Capability & Technical Expertise
- Main Products
- NdFeB Magnet, AlNiCo Magnet, SmCo Magnet
-
Production Machines
- Materials Mixing Machine, Airflow Milling Machine, Grinding Machine, Magnet Automatic Inspection Machine, Automatic Measuring Instrument for Magnetization Characteristics, Magnetizing Apparatus, Cutting Machine, Multi-wire Cutting Machine, Vacuum Sintering Furnace, Automatic Magnetic Field Press, Isostatic Pressing Machine, Stripping Machine, Projector, Automatic Magnetizing Flux Testing Machine, Stick Put Oneself in Machine, Automatic Magnetizing Apparatus, Magnetizing Apparatus, Chamber Electric Furnace, Well Type Resistance Furnace, electric Dry Oven, Core Shooting Machine, Ultrasonic Cleaners, Smelting Furnace
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 11 people
Our Industry Experience & Global Business Record
- Export Year
- 2019-06-21
-
Main Markets
- Domestic
-
Number of Foreign Trading Staff
- 6
-
Overseas Agent/Branch
- No
FAQ
- What grades of NdFeB magnets are available?
- We offer a wide range of grades including N, M, H, SH, UH, EH, and AH series, such as N30H, N35, N42, N50, etc.
- What is the coating material for these magnets?
- The standard coating is Nickel, which provides good corrosion resistance.
- Can I customize the shape or size of the magnet?
- Yes, we support OEM and ODM services, allowing for customized shapes and sizes.
- What are the main applications for these magnets?
- They are widely used in electronic products, speakers, industrial magnets, and motors.
- What are the payment terms?
- We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as payment terms.
- What is the lead time for production?
- The off-season lead time is one month, while the peak season lead time is 1-3 months.
- Where is the company located?
- Our factory is located in Changxing County, Hangzhou, Zhejiang, China.
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