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China Courage Magnet Manufacturer

14 Years High Performance Permanent Magnet Supplier & Factory

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Magnet Products
Aluminum Nickel Cobalt Magnets

Large square alnico magnet with center hole 69x69x25mm

Material:Aluminum Nickel Cobalt


Appearance:Original color



Tolerance:0.03mm~0.05mm (according to you requirment)

Packing:Standard air or sea packing

Pull Force:Untested

Delivery Time:10-20 days

Place Of Origin:Dongguan, Guangdong Province, China

Working Temperature:less than 550℃

Magnetizing Direction:Thickness

Surface Magnetic Strength:More than 800 gauss

  • Product Details
  • Why Choose Us
  • FAQs
  • Packing & Delivery

This magnet is a square magnet with a cenrter hole, the material is cast aluminium nickel cobalt. The specific size is 69mm in length and width, 25mm in thickness. The grade is LNG52, so the density is 7.3 g/cm³ and is anisotropy. The working temperature is less than 550℃, the direction of magnetizing is thickness.

Alnico manufacturing can also choose sintered process. The casting alnico can be processed into different sizes and shapes, compared with the casting process, the sintered alnico magnet is limited to a small size, and the size tolerance of the blank product produced is small.

This square magnet with a hole in the middle can be inserted into other parts. This magnet can be used in places that are resistant to high temperatures and do not require too much coercive force, such as some motors, medical equipment, hand tools, automotive parts, instruments, motors, teaching tools, communications, sensors and other fields.

Basic physical properties of aluminum nickel cobalt:

Curie temperature 860 ° C

Working temperature 525-550 ° C

Recovery magnetic permeability 1.70-4.70rec

Hardness 520-630 HV

Sintering density 6.9-7.30 g/cm3

Saturated magnetization 2.7-6.3 KOe

Residual magnetic temperature coefficient (Br) -0.025~-0.02% (° C)

Residual magnetic temperature coefficient (iHc) 0.01~+0.03% (° C)

Aluminum nickel cobalt magnetic performance data;

Alnico magnets 1-9 performance parameter datasheet

Dongguan Courage Magnetoelectric Technology Co., Ltd. is a Chinese magnet manufacturer specializing in the production of strong neodymium magnets, ceramic ferrite magnets, motor multipole magnets. We have cooperated with many customers for many years, mainly for the following reasons:

1, We are good at processing high performance, high precision, high difficulty magnet, especially in the field of DC motor magnet, have strong professional knowledge, experience.

2, We have a professional production, sales, design team, based on the industry for more than 14 years.

3, We have advanced magnet production and testing equipment, according to customer requirements to design, production of special requirements of magnet products,

4. The company's products have passed SGS, ROHS, REACH certification and a complete ISO9001 quality management system, specializing in providing high-quality permanent magnet products to customers in various countries.

5. Experience in serving Western, Asian and North American companies, we also have close ties with other regions, fedex or DHL can deliver,

6, Even if our customers do not know much about magnets, we will help and provide accurate product solutions.

You may be interested;

Courage Magnet Manufacturer Magnet Testing Certificate & Report

You may be interested in these magnet problems (Q&A) ;

1、Could you give me some magnet samples?

Yes, we have magnets in stock to help you get samples as soon as possible.

2、How long will it take me to get a reply to your email or inquiry?

We will contact you as soon as possible within 12 hours.

3、Why don't the magnets on your company website say the price?

Magnets belong to functional products, most customers have different requirements for magnets, such as material, shape, performance, tolerance, temperature resistance, purchase quantity, etc., we can customize processing according to your requirements, so we need to clarify your specific needs and then give you a quote.

4、Do you guarantee the quality of your magnet products?

We have ISO,SGS and REACH certifications. If necessary, we can send you relevant materials.

5、May I come and visit your magnet factory?

Sure. We'll show you around our factory if you want.

6、What is your delivery time?

See if there is spot stock, if there is immediately can be arranged to send, if there is no need to process in 10-30 days or so, depending on what kind of magnet.

More Questions and Answers about Magnets:

Courage magnet manufacturer magnet packaging and delivery method:

China Courage magnet manufacturer magnet packaging and delivery method

The magnets we make are mainly delivered to you by sea or air. The packaging is generally neutral packaging, shielded packaging, vacuum packaging, pallets, etc., which can be packed according to your requirements.


a: Express (TNT, DHL, FedEx, UPS, etc.), air freight, sea freight.

b: The weight is less than 40Kgs. We suggest sending it to you by shield box.

c: It weighs between 40 kg and 100 kg. It can be expressed or shipped by air.

d: The weight is over 100 kg. We suggest sea transportation.

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