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Xiamen Un Magnet Co.,Ltd.
Xiamen Un Magnet Co.,Ltd.
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High Corrosion Resistant Neodymium Ndfeb Magnet

Product Details

Place of Origin: China

Brand Name: UNMAG

Certification: ISO9001, IATF16949, ISO14001

Payment & Shipping Terms

Minimum Order Quantity: 100pcs

Price: As negotiation

Packaging Details: cartons,pallets

Delivery Time: 20-25days

Payment Terms: T/T L/C

Supply Ability: 100 tons per month for NdFeB magnet

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Pull Force:
Corrosion Resistance:
Magnetic Orientation:
Axial,Multi-polar,As Customization
Pull Force:
Corrosion Resistance:
Magnetic Orientation:
Axial,Multi-polar,As Customization
High Corrosion Resistant Neodymium Ndfeb Magnet

Product Description:

Sintered Neodymium Magnet is a kind of Magnetic-Alloy-Compound made of Neodymium-Iron-Boron (NdFeB) material. It is a kind of sintered permanent magnet with high Magnetic Field Strength. It is widely used in New Energy Cars,Wind Power Generation,Servo Motors,Traction Motors and other fields. It is certified by ISO9001, IATF16949, ISO14001. It is available in many shapes and sizes and can be customized according to customers' needs. It has a variety of coating options including Nickel,Zinc,Epoxy. The combination of its powerful magnetic properties and lightweight makes Sintered Neodymium Magnet a widely used solution in many industries.



  • Product Name: Sintered Neodymium Magnet
  • Material: Neodymium-Iron-Boron
  • Type: Sintered-Neo-Magnet
  • Size: Customized
  • Corrosion Resistance: High
  • Shape: Customized
  • Magnetic Orientation: Axial,Multi-polar,As Customization
  • Performance: High-Performance-Magnet
  • Certification: ISO9001, IATF16949, ISO14001

Physical Properties of Sintered Neodymium Magnet:


Parameter Name Parameter Values Unit
Curie Temperature 310~380
Relative Recoil Permeability 1.02~1.05  
Reversible Temperature Coefficient of Br (20~100℃) -0.09~-0.13 %/℃
Reversible Temperature Coefficient of Hcj (20~100℃) -0.4~-0.7 %/℃
Density 7.50~7.70 g/cm3
Vickers Hardness 550~700  
Bending Strength -0.09~-0.13 MPa
Tensile Strength ≥80 MPa
Compressive Strength 800 ~1050 MPa
Electric Resistivity 150 μΩ·cm
Thermal Conductivity 8~10 W/(M·℃)
Coefficient of Thermal Expansion
(Parallel to the orientation)
5 10-6/K
Coefficient of Thermal Expansion
(vertical to the orientation)
-1.5 10-6/K
Young's Modulus 150~200 GPa
Specific Heat(20℃~320℃) 3.0~4.6 J/(g·k)
weight loss(low weight loss products) ≤2 mg/cm2

Technical Parameters:

Property Specification
Price Reasonable
Application New Energy Cars,Wind Power Generation,Servo Motors,Traction Motors
Coating Nickel,Zinc,Epoxy
Magnetic Orientation Axial,Multi-polar,As Customization
Magnetic Flux Density High
Shape Customized
Magnetic Performance Stable
Corrosion Resistance High
Grade N35-N52
Pull Force High
Magnetic Alloy Compound Sintered Neodymium Magnet
Magnet Material Neodymium Iron Boron

Max. working temperature for different grade:

Grade Working Temp
N35~N52 ≤80
38M~50M ≤100
35H~48H ≤120
33SH~48SH ≤150
30UH~40UH ≤180
30EH~38EH ≤200

Manufacturing process for magnets (outline):

Mixing 1.Mix the ingredients.
Melting 2.Dissolve the mixture at high temperature and prepare an alloy.
Fine pulverization 3.Turn the alloy into fine powder.
Molding in a magnetic field 4.When pressing the fine powder, apply a magnetic field to it and prepare
a molded product of powder with aligned directions of magnetization.
Sintering and heat treatment 5.Sinter the product at about 1,100℃, and then subject it to heat treatment at
about 600℃ to increase its magnetic characteristics.
Processing 6.Process the manufactured magnet base material and finish it into the product shape.
Surface treatment 7.Subject the product to surface treatment in order to make it rustproof.
Magnetization 8.Apply a magnetic field to give the magnet magnetism.


Sintered Neodymium Magnets, also known as Sintered-Neo-Magnet, are produced by UNMAG and are a type of high-performance magnet. The magnets are made of an alloy of neodymium, iron, and boron, and are renowned for their high magnetic field strength and temperature resistance. The magnets also boast a high corrosion resistance, and are available in different coatings including nickel, zinc, and epoxy. UNMAG's Sintered Neodymium Magnets are designed to be reasonably priced and provide long-term performance.

Sintered Neodymium Magnets can be used in a wide range of applications and scenarios. They are often used in motors, generators, and wind turbines, as well as in consumer electronics, sensors, and musical instruments. These magnets can also be used in a variety of industrial and commercial applications such as robotics, medical equipment, and aerospace engineering.

UNMAG's Sintered Neodymium Magnets are designed to offer reliable performance and long-term durability, making them perfect for any application or scenario.



Sintered Neodymium Magnet

UNMAG is a professional manufacturer of high-performance sintered neodymium magnet.

Our sintered neodymium magnet is made of powder metallurgy, with high corrosion resistance and superior performance.

We offer a range of grades from N35 to N52 and various coatings such as nickel, zinc and epoxy.

All our sintered neodymium magnets are certified by ISO9001, IATF16949, ISO14001.

We guarantee reasonable price and high quality.


Support and Services:

Sintered Neodymium Magnet Technical Support and Service

Our team is dedicated to providing the highest level of technical support and service for our Sintered Neodymium Magnet products. We provide knowledgeable support for product selection, installation, troubleshooting, and maintenance.

We offer product-specific support services, such as:

  • Detailed installation instructions
  • In-depth product information
  • Product testing and evaluation
  • Technical support for product modifications and customization

We also provide additional services, such as:

  • On-site technical assistance and training
  • Consultation services to assist with product selection
  • Inspection and quality assurance for product purchases
  • Technical support for product maintenance and repair

For any inquiries or requests for technical support and service, please contact our team at [insert email or phone number].


Packing and Shipping:

Packaging and Shipping for Sintered Neodymium Magnet:

  • The sintered neodymium magnets are packaged in plastic bags or carton boxes.
  • The packaging is designed to prevent damage during transportation and storage.
  • The shipment method of the sintered neodymium magnets can be chosen according to customer requirements, such as express delivery, air transportation or ocean transportation.
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