20+ Years ISO9001 Certificated NdFeB Block Magnet for Sale
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Product Highlights
- ISO9001 Certified Quality: 21 years of experience with ISO9001 certification ensuring high quality standards.
- Wide Grade Selection: Available in N30H to N50, M, SH, UH, EH, and AH grades for diverse needs.
- Nickel Coating Protection: Features durable Nickel coating for enhanced corrosion resistance and longevity.
- Versatile Applications: Ideal for electronic products, speakers, industrial machinery, and motor magnets.
- Customizable Tolerances: Offers precise tolerance options of +/-0.1 or +/-0.05 for specific requirements.
- OEM/ODM Services: Supports OEM and ODM services with 11 R&D engineers for custom solutions.
- High Energy Product: Maximum energy product ranges from 31 to 51 MGOe for strong magnetic performance.
- Professional Manufacturing: Equipped with advanced machinery including vacuum sintering furnaces and cutting tools.
Product Attributes
- Customization
- Available
- Application
- Electronic Products, Speaker Magnet, Industrial Magnet, Motor Magnet
- Shape
- Block
- Model NO.
- N33-N52(H, M, SH, UH)
- Coating
- Nickel
- Grade
- N30H-48H
- Tolerance
- +/-0.1 +/-0.05
- Density
- 7.4~7.6
- Curie Temperature
- 310~380
- Flexural Strenth
- 25kg/mm
- Recoil Permeabilty
- 1.05
- Vickers Hardness
- 620hv
- Transport Package
- as Customer Required
- Specification
- Customized
- Trademark
- RCMAG
- Origin
- China
- HS Code
- 85051110
- Production Capacity
- 1000 Ton/Year
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Product Description



| Magnetic and Physical Properties of Sintered NdFeB Magnet | ||||||||||
| 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 N30H-N50, N35M-N45M, N33H-N42H, N30SH-N40SH, N28UH-N35UH, N28EH-N38EH, and N30AH-N33AH.
- What is the coating material for these magnets?
- The standard coating for these block magnets is Nickel, which provides good corrosion resistance.
- Can you provide OEM or ODM services?
- Yes, we provide both OEM and ODM services, supported by a team of 11 R&D engineers.
- What are the main applications for these magnets?
- These magnets are primarily used in electronic products, speakers, industrial equipment, and motors.
- What are the payment terms?
- We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as payment terms.
- What is the typical lead time for orders?
- The lead time is 1-3 months during peak season and one month during the off-season.
- Where is the company located?
- Our factory is located at 528# Fuqian Street, Industrial Park, Si'an Town, Changxing County, Hangzhou, Zhejiang, China.
- What certifications does the company hold?
- The company is ISO9001 certified and has 21 years of experience in the industry.
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