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Neodymium Iron Boron Magnet Manufacturer

NdFeB magnets because they are mainly composed of Neodymium (Nd), Iron (Fe) and Boron (B). Neodymium magnets can be divided into sintered neodymium magnets, bonded neodymium magnets, and hot-pressed neodymium magnets according to the specific manufacturing process. Sintered neodymium magnets still provide strong magnetic force and have been used in a wide variety of applications including high-performance permanent magnet motors, brushless DC motors, magnetic separators, magnetic resonance imaging (MRI), sensors, speakers, consumer electronics and green energy .

Neodymium Iron Boron Magnet
Manufacturing Process of Sintered NdFeB Magnet
  • Introduction of Manufacturing Process

    Sintered NdFeB magnet is prepared by the raw materials being melted under vacuum or inert gas atmosphere in an induction melting furnace and processed in the strip caster and thus cooled to form alloy strip. The strips are crushed and pulverized to form a fine powder ranging from 3 to 7 microns in particle size. The powder is subsequently compacted in an aligning field and sintered into dense bodies. The blanks are then machined to the specific shapes, surface treated and magnetized.

  • Process Flow of Sintered NdFeB Magnet
    Neodymium Iron Boron Magnet Neodymium Iron Boron Magnet
Magnetic Properties of Sintered NdFeB Magnet
  • Physical Properties of NdFeB Materials

    Physical characteristics

    Density

    Tc

    Compressive strength

    Tensile strength

    Modulus of elasticity

    HV

    Resistivity

    Thermal conductivity

    Thermal expansion coefficient

    Unit

    g/cm3

    ºC

    MPa

    MPa

    MPa

    /

    μΩ•m

    W•(m•ºC)-1

    ∥  
    x10-6 /K

    ⊥  
    x10-6/K

    NdFeB

    7.5-7.9

    320-360

    1000-1100

    80-90

    150-200

    500-600

    1.4-1.6

    8-10

    3-4

    1-3

  • Performance Grades of Sintered NdFeB Magnet
    Performance Table of Sintered NdFeB Magnet
    View Online
Shape Categories of Sintered SmCo Magnet
  • Arc Neodymium Iron Boron Magnet
    Arc
  • Block Neodymium Iron Boron Magnet
    Block
  • Disc Neodymium Iron Boron Magnet
    Disc
  • Cylinder Neodymium Iron Boron Magnet
    Cylinder
  • Rin Neodymium Iron Boron Magnet
    Rin
  • Special-Shaped Neodymium Iron Boron Magnet
    Special-Shaped
Shape And Surface Treatment Category Of NdFeB Magnet
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Magnetization Direction
  • Neodymium Iron Boron Magnet

    Magnetization in the thickness direction

  • Neodymium Iron Boron Magnet

    Axial magnetization

  • Neodymium Iron Boron Magnet

    Radial magnetization

  • Neodymium Iron Boron Magnet

    Axial multi-pole magnetization

  • Neodymium Iron Boron Magnet

    Surface Multipole Magnetization

  • Neodymium Iron Boron Magnet

    Radial magnetization

About Our Company

Magnetic material core technology research and development team

Hangzhou Zhiyu Magnetic Technology Co., Ltd. is China Hot-Pressed Neodymium Iron Boron Magnet manufacturers and Neodymium Iron Boron Magnet factory. Hangzhou Zhiyu Magnetic Technology Co., Ltd. is located in Tonglu County, Hangzhou City. It mainly focuses on the research and production of samarium cobalt permanent magnetic materials and magnetic components, and also sells magnetic steel and magnetic components such as neodymium iron boron and aluminum nickel cobalt.
The products are widely used in industries such as national defense and military, aerospace, permanent magnet (high-speed) motors, hydrogen energy compressors, automotive electronics, 5G communication, petrochemical, instrumentation, etc. The variety of samarium cobalt products is complete, with an annual production capacity of over 200 tons;
Fully covering the entire series of samarium cobalt grades of 1:5 and 2:17, covering the entire series of Br0.5T-1.2T;
Stable production of high-performance samarium cobalt magnetic steel with Br ≥ 1.16T and Hcj≥25KOe;
Stable production of Br≥0.96T low-temperature coefficient series products, with residual magnetic temperature coefficient a<-0.01%;
Stable production of ultra-high temperature (temperature resistance ≥ 550 ℃) and high Br (Br ≥ 1.02T) samarium cobalt magnetic steel;
Provide one-stop services from design to product application.

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Industry knowledge

How are neodymium iron boron magnets used in the automotive industry?
Neodymium iron boron (NdFeB) magnets are widely used in the automotive industry for various applications due to their high magnetic strength and compact size. Here are some ways in which neodymium iron boron magnets are used in the automotive industry:
Electric Motors: NdFeB magnets are utilized in electric vehicle (EV) motors and hybrid vehicle motors. Their strong magnetic properties contribute to high torque generation and improved motor efficiency, enabling efficient propulsion of electric and hybrid vehicles.
Power Steering Systems: Neodymium iron boron magnets are employed in electric power steering (EPS) systems. They assist in providing the necessary torque for steering control, allowing for precise and responsive steering in vehicles.
Electric Braking Systems: NdFeB magnets are used in electric braking systems, such as regenerative braking systems found in electric and hybrid vehicles. They help convert kinetic energy into electrical energy during braking, enabling energy recovery and improving overall vehicle efficiency.
Starters and Alternators: Neodymium iron boron magnets are used in vehicle starters and alternators. They contribute to the compact size and high efficiency of these components, aiding in the starting of internal combustion engines and generating electrical power for various vehicle systems.
Electric Door Locks and Windows: NdFeB magnets are employed in electric door lock systems and power windows. Their strong magnetic force facilitates secure and efficient locking mechanisms, as well as smooth operation of power windows.
Sensors and Switches: Neodymium iron boron magnets are used in various automotive sensors and switches, such as wheel speed sensors, throttle position sensors, and position switches. They enable accurate detection, monitoring, and control of vehicle systems and components.
Anti-lock Braking Systems (ABS): NdFeB magnets play a role in anti-lock braking systems. They are utilized in speed sensors to detect wheel speed and provide information for ABS operation, contributing to safer and more effective braking in vehicles.
Suspension Systems: Neodymium iron boron magnets can be incorporated into suspension systems for active damping control. They assist in adjusting the suspension dynamics to improve vehicle stability, comfort, and handling.
What role do neodymium iron boron magnets play in renewable energy technologies?
Neodymium iron boron (NdFeB) magnets play a crucial role in various renewable energy technologies, primarily in wind turbines and electric generators. Here are the key roles of NdFeB magnets in renewable energy:
Wind Turbines: NdFeB magnets are used in the generators of wind turbines. They are typically found in the rotor, where the rotational motion of the blades is converted into electrical energy. The strong magnetic properties of NdFeB magnets enable efficient power generation by converting the mechanical energy of the wind into electrical energy.
Electric Generators: NdFeB magnets are employed in electric generators used in various renewable energy systems, such as hydroelectric power plants and tidal power generation. They help convert mechanical energy, derived from water flow or tides, into electrical energy.
Direct-Drive Systems: NdFeB magnets are utilized in direct-drive systems, where the turbine rotor is directly connected to the generator without the need for a gearbox. These systems are preferred for their simplicity, reduced maintenance, and improved efficiency. NdFeB magnets provide the necessary magnetic force for direct-drive generators, resulting in compact and efficient power generation systems.
Efficiency Improvement: The use of NdFeB magnets in renewable energy technologies significantly enhances the efficiency of power generation. Their strong magnetic properties enable generators to operate at higher speeds and produce more electricity per unit of mechanical input, increasing overall energy conversion efficiency.
Size and Weight Reduction: NdFeB magnets allow for the design of more compact and lightweight renewable energy systems. Their high magnetic strength allows for smaller generator sizes, which is particularly beneficial for offshore wind turbines or other space-constrained applications.
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