Alnico alloys are composed primarly of Cobalt, Nickel, and Aluminum with the addition of Iron, Copper, and sometimes Titanium that help make them become stronger permanent magnets. They can be magnetized to produce strong magnetic fields. Alnico magnets produce magnetic fields with strength at their poles as high as 1500 gauss, or about 3000 times the strength of the earth’s magnetic field.
Cast Alnico can be processed to be intricate and complex shapes to meet customer’s demand .Some types of Alnico are isotropic, meaning they can be efficiently magnetized in any direction. Other types, such as Alnico 5 and Alnico 8 are anisotropic, meaning they have a preferred direction of magnetization, orientation. Anisotropic magnets generally have a greater magnetic capacity in their preferred orientation than isotropic. Anisotropic Alnico magnets, cast alnicos are oriented by heating them above a critical temperature, and cooling them in the presence of a magnetic field.
Unlike casted Alnico magnets, sintered Alnico magnets, cast alcomax, cast alnico magnet, teaching magnet, education magnet offer lower magnetic properties but better mechanical characteristics. Mixes of metal powders are pressed to shape and size, and then sintered at 2300oF in a hydrogen atmosphere. The sintering process is well suited to large volume production, and results in parts that are structurally stronger than cast magnets. Relatively close tolerances can be achieved without grinding.
Alnico magnets are chosen for a variety of applications because of their ability to provide high flux density and thermal stability. We can offer various grades of this material, including Alnico 5, Alnico 8 and Alnico 9, which have the highest maximum energy product of all alnico products on the market. Alnico magnets can be sintered or cast, depending on the specific performance requirements, and can be formed into custom shapes, including arcs, discs, rings, and blocks
● Excellent stability over a wide range of temperatures
● Can be specified as complex and custom shapes
● Grades available for temperature requirements up to 540°C
● Very high residual induction (Br) of up to 13.5 kG
● Magnetic properties can be tuned or adjusted after assembly
● Electronic ignition systems
● Volt-amp meters
● Industrial motors
● Vending machines
● Watt hour meters
● Medical instruments
● Magnetic reed switches
● Hand tools
1. What is normal dimension of your products?
All magnets are customized.
2. What information do I need to supply when I have a inquiry?
If you have any inquiry, please kindly advise the following items:
a. Dimensions or drawing with tolerances.
b. Material grade or magnetic properties.
c. Quantity and delivery terms.
d. Surface coating (If necessary).
e. Magnetic direction.
3. How long will you give me the reply?
We will reply you in 12 hours.
4. How is the price?
As we believe the quality is the most important, we will provide the high quality magnet with reasonable price.
5. Could I get samples?
Yes, we have materials in stock to help you to get the samples as soon as we can.
6. How long will you deliver sample and bulk order?
If we have materials in our stock, we can send them within 3 days. If we don’t have material in stock, production time for sample is 5-10 days, 15-25 days for bulk order.