Custom Super Strong Neodymium N35 N38 N40 Neodymium Ring Magnet
Contact Supplier
Product Highlights
- Wide Grade Range: Available in N30H to N48H grades with precise magnetic properties.
- Nickel Coating: Durable nickel coating ensures corrosion resistance and longevity.
- High Precision Tolerance: Tight tolerance of +/-0.1mm ensures accurate fit and performance.
- Versatile Applications: Ideal for electronic products, speakers, industrial motors, and more.
- Customizable Specs: Custom density, Curie temperature, and hardness options available.
- Strong Magnetic Force: High remanence and coercive force for superior magnetic strength.
- Professional Manufacturer: Factory direct with 11 R&D engineers and advanced production lines.
- Flexible OEM/ODM: Supports OEM and ODM services for tailored magnetic solutions.
Product Attributes
- Customization
- Available
- Application
- Electronic Products, Speaker Magnet, Industrial Magnet, Motor Magnet
- Shape
- Block
- Model NO.
- N35-N52
- Coating
- Nickel
- Grade
- N30H-48H
- Tolerance
- +/-0.1
- 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
Product Images of Custom Super Strong Neodymium N35 N38 N40 Neodymium Ring Magnet
Find Similar Products
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, N33H, N35H, N38H, N40H, N42H, N45H, N48H, and their M, SH, UH, EH, and AH variants.
- What is the coating material for these magnets?
- The standard coating for these neodymium ring magnets is Nickel, which provides excellent corrosion resistance.
- Can the magnet specifications be customized?
- Yes, we support customization for tolerance (+/-0.1mm), density (7.4~7.6), Curie temperature (310~380), flexural strength, and hardness.
- What are the main applications for these magnets?
- These magnets are primarily used in electronic products, speaker systems, industrial machinery, and motor applications.
- What is the lead time for orders?
- The lead time varies by season: 1-3 months during peak season and approximately one month during the off-season.
- Does the supplier support OEM and ODM services?
- Yes, we provide both OEM and ODM services, supported by 11 R&D engineers and advanced manufacturing equipment.
- What are the payment terms?
- We accept payment via Letter of Credit (LC) and Telegraphic Transfer (T/T).
- What is the maximum energy product of N48 grade?
- The N48 grade has a maximum energy product ranging from 358 to 390 KJ/m3 (45-48 MGOe).
Send your message to this supplier
People who viewed this also viewed
-
US$0.01-1.99 / Piece
-
US$0.01-3.99 / Piece
-
US$0.001 / Piece
-
US$0.01 / Piece
Find Similar Products By Category
- Supplier Homepage
- Products
- NDFEB Magnet
- Ring
- Custom Super Strong Neodymium N35 N38 N40 Neodymium Ring Magnet
Related Categories
Hot Searches
- Magnet Material Factories
- Magnetic Magnet
- Industrial Magnet Factories
- Permanent Magnet Factories
- Magnet Permanent Neodymium
- Nickel Magnet
- Strong Permanent Magnet
- Ndfeb Strong Magnet
- Strong Earth Magnet
- Permanent Magnet Bulkbuy