• Xiamen Un Magnet Co.,Ltd.
    João de Oliveira
    Although this is a trial order,Happy cooperation!Will find more cooperation chance to support.
  • Xiamen Un Magnet Co.,Ltd.
    Stephen
    We have cooperation together since 2016,magnets performance has no problem.We are satisfied with these products.
  • Xiamen Un Magnet Co.,Ltd.
    Anna
    We bought large ring magnet from UNMAG for auto supply chain used all over world since 2020,A good partner in China.
Contact Person : Sales Department
Phone Number : 86-592-5130661
Whatsapp : +8618359200916

Iron Boron Industrial Neodymium Magnets

Place of Origin China
Brand Name UNMAG
Certification ISO9001, IATF16949, ISO14001
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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Product Details
Coating Nickel,NiCuNi,Zinc,Epoxy Etc Grade N35-N52, 35M-50M, 35H-48H, 30SH-45SH...
Application New Energy Cars,Wind Power Generation,Servo Motors,Traction Motors Magnetic Orientation As Customization
Working Temperature 80~220°C Material Neodymium Iron Boron
Shape Block,Arc,Ring,Customized Shape Magnet
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Product Description

Neodymium Iron Boron Magnet For New Energy Cars Customized Magnetic Orientation

Product Description:

Sintered Neodymium Magnet is a type of permanent magnet made from neodymium iron boron (NdFeB). It is the most powerful permanent magnet in the world and is used in a variety of applications including speakers, motors, medical equipment, and sensors. Our sintered neodymium magnets are manufactured with the highest quality materials and certified with ISO9001, IATF16949, and ISO14001 standards. We offer a wide range of N50 neodymium magnets in various sizes and shapes, with coatings such as nickel, nickel-copper-nickel, zinc, and epoxy. Our products are also customizable with magnetic orientation and working temperature ranging from 80°C to 220°C. With the highest grade of sintered neodymium magnet, you can trust that your applications will perform reliably and efficiently.

 

Features:

  • Product Name: Sintered Neodymium Magnet
  • Coating: Nickel,NiCuNi,Zinc,Epoxy Etc
  • Certification: ISO9001, IATF16949, ISO14001
  • Grade: N35-N52, 35M-50M, 35H-48H, 30SH-45SH...
  • Shape: Block,Arc,Ring,Customized Shape Magnet
  • Magnetic Orientation: As Customization
  • Material: Neodymium Iron Boron Magnet
 

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:

Properties Details
Certification ISO9001, IATF16949, ISO14001
Working Temperature 80~220°C
Application New Energy Cars,Wind Power Generation,Servo Motors,Traction Motors
Grade N35-N52, 35M-50M, 35H-48H, 30SH-45SH...
Coating Nickel,NiCuNi,Zinc,Epoxy Etc
Material Neodymium Iron Boron
Shape Block,Arc,Ring,Customized Shape Magnet
Magnetic Orientation As Customization
 

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.

Applications:

UNMAG Sintered Neodymium-Iron-Boron Magnet is made in China and packaged in Carton Box. It is an ideal choice for a wide range of applications, such as New Energy Cars, Wind Power Generation, Servo Motors, Traction Motors etc. It has a working temperature range of 80~220°C and can be manufactured in a variety of shapes, such as Block, Arc, Ring, customized shape magnet. The coating options include Nickel, NiCuNi, Zinc, Epoxy etc. The delivery time is 20-25days and the magnetic orientation can be customized.

 

Other Characteristics:

Tolearance Control

Name Dimension(mm) Tolerance(mm)
Wall thickness T≤10 ±0.04
10<T≤30 ±0.05
30<T≤50 ±0.06
Length L≤10 ±0.04
10<L≤30 ±0.05
30<T≤50 ±0.05
L>50 ±0.08
Width W>50 ±0.05
L>50 W≥50 ±0.08

Available size: L≤200mm,W≤100mm,T: 1.5~50mm,H3~60mm


 

Physical Properties & Application to Environment of the Coating:

 

Coating Material Colour Properties Environment of Application Thickness of
Coating layer
Zinc Blue, Black and rainbow etc Compact, Stable and Homogeneous With reasonalbe capability of anticorrosion 6um≤∮≤12
Nickel-Copper-Nickel White and black Light and Stable Suitable for higher corrosive environment 15μm≤∮≤30pm
Phosphorization Colorless or light gray uniform thickness short-term anticorrosion -
Epoxy Black and Gray layer with certain luster, insurability Suitable for higher corrosive environment ≥15μm
Parylene transparency uniform thickness, density pinholes-free and insurability Excellent capability of anticorrosion especially for small items 0.1μm≤∮≤100pm
Ni+Cu+Epoxy Black Layer with certain luster Excellent capability of 10-30μm
anticorrosion. Suitable for
hostile environment
salt spray resistance>300hr
Al+Epoxy Black Layer with certain luster Excellent capability of 15-35μm
anticorrosion. Suitable for
hostile environment
salt spray resistance>650hr Widely used in new energy
auto magnets

Customization:

Customized Sintered Neodymium Magnet from UNMAG
  • Brand Name: UNMAG
  • Place of Origin: China
  • Packaging Details: Carton Box
  • Delivery Time: 20-25days
  • Working Temperature: 80~220°C
  • Material: Neodymium Iron Boron
  • Application: New Energy Cars,Wind Power Generation,Servo Motors,Traction Motors
  • Certification: ISO9001, IATF16949, ISO14001
  • Grade: N35-N52, 35M-50M, 35H-48H, 30SH-45SH...
  • Keywords: N50 Neodymium Magnets, Neodymium Iron Boron Magnet, Permanent Neodymium Magnet
 

Packing and Shipping:

Sintered Neodymium Magnet's Packaging and Shipping:

Packaging: The sintered neodymium magnets will be packed in a sealed bag or box with a desiccant, then put in a carton.

Shipping: We can ship the sintered neodymium magnets by air, sea or express.