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Material             Aluminum (Al), Nickel (Ni), Cobalt (Co)    

Grade

 Alnico 5, Alnico 8, Alnico 9, etc.                                 
Max operating temperature Up to 500℃ - 550℃  
Size Customized according to customer drawings  
Shape Block, cylinder, disc, ring, arc, segment, horseshoe, special-shaped parts  
Plating Customized (Ni, Epoxy, Passivation, etc.)  
Size Tolerance Cast products ±0.1~0.5mm; sintered products ±0.05~0.1mm; machined products ±0.01~0.05mm  
Density 6.9 ~ 7.3 g/cm³  
Br 0.70 ~ 1.35 T  
Hcj 80 ~ 220 kA/m  
(BH)max 80 ~ 220 kA/m  
Magnetization   Axially, Diametrally  
Applications Alnico magnets are widely used in instruments, aerospace, automotive electronics, acoustic components, sensors and high-temperature equipment where stable magnetic properties under high temperature are required.  

Cast & sintered Alnico magnets are produced through melting, casting or compacting, high-temperature sintering, heat treatment and precision machining.With ultra-high temperature stability, excellent corrosion resistance and good machinability, they are suitable for long-term use in high-temperature and harsh environments.

 

1.Processing Adaptability

Alnico has good ductility and processability, and can be processed by turning, milling, drilling, grinding, EDM and other conventional machining methods. It is not easy to crack or chip, and can realize complex structural processing.

 

2.Processing Equipment & Capability

We are equipped with grinding machines, lathes, milling machines, drilling machines and EDM, supporting small-batch trial production and mass production.

 

-Mechanical Processing

Turning, milling, grinding, cutting to achieve high precision and good surface quality.

-EDM & Special Profile Processing

Suitable for complex precision parts with low stress.

-Drilling & Special Shaping

Drilling, tapping, countersinking available with conventional tools.

 

3.Shape

We produce various shapes, including blocks, cylinders, discs, rings, arcs, segments, horseshoe magnets and special-shaped parts. Complex profiles for high-temperature instruments, sensors and acoustic equipment can be customized according to drawings.

 

4.Surface Treatment

Alnico has excellent inherent corrosion resistance; coating is usually unnecessary.

Common options: Passivation, Ni plating, Epoxy coating.

 

5.Magnetization Direction

Supports axial and diametral magnetization only.

Multi-pole magnetization is not recommended due to low coercivity and easy demagnetization.

6.Application Fields

  • High-temperature instruments and meters
  • Aerospace, automotive electronics, precision sensors
  • Acoustic components, speakers, guitar pickups
  • Industrial automation, magnetic couplings, high-temperature equipment
  • Medical devices, precision positioning components

 

 

7.Compliance, safety, and high quality

  • Comply with RoHS, REACH
  • Magnetic test report, dimension inspection report available
  • Strict inspection on dimensions, magnetic properties and appearance

 

 

How to get a best quote?

After confirming the above details or if you have any futher questions, we would love to receive your email or messages. We will calcualte the price ASAP according to your order/sample quantity,and respond to your concerns.

 

Custom Ring Alnico Magnets

​​​​​​​PRODUCT DETAIL

1.Dimensions: Customized / Produce according to your needs

2.Materials: NdFeB,Grade N35 to N52 (M,H,SH,UH,EH AH)

3.Plating/Coating: Nickel,Zinc,Epoxy and etc.

4.Magnetization direction: Through thickness, width, length and multiple-pole.

5.Max operating temp: 80 to 220 degrees celsius

It can be very small block/cube,or it can be big block/bar and become a very powerful magnet.They are often used for industrial applications.

Sintered Neodymium Magnet

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  CATEGORIES                       

  • Ferrite (Ceramic)

    Lowest cost, corrosion-free, easy to produce in large scale.
    Moderate magnetism.
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  • Alnico

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    Lowest magnetic strength among the three
    Good machinability, can be formed into complex shapes
    Typical applications: sensors, instruments, loudspeakers, educational magnets

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  • Samarium Cobalt (SmCo)

    A high-performance rare-earth magnet focused on extreme environments.
    Outstanding temperature stability and high working temperature
    Excellent corrosion resistance, rarely needs surface coating
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    Typical applications: aerospace, high-temperature motors, precision instruments

    넶71 ¥ 0.00

  • NdFeB(Neodymium)

    The strongest commercial permanent magnet available today.
    High magnetic strength, excellent magnetic performance per unit volume
    Cost-effective, widely used in modern industries
    Lower temperature resistance; requires coating to prevent corrosion
    Typical applications: motors, sensors, hard disk drives, speakers, wind turbines

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  • Pot magnet

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