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AlNiCo Cylinder Magnet Description

The Alnico cylinder magnet, also known as AlNiCo rod magnet, is composed of aluminum-nickel-cobalt with excellent temperature stability and high residual inductance. Alnico cylinder magnets have straight parallel sides and a circular cross-section, and are measured according to the Diameter (D) x Height (H).

AlNiCo Cylinder Magnet Specification

Materials: ALuminium, NIckel, CObalt, and iron ;

Technology: Utilizes new cast Alnico magnet techniques and equipment such as strip casting, HDDR technology;

Magnetic properties:

Excellent temperature stability

High energies and relatively low coercivity.

High working temp: up to 550 degrees

Good corrosion resistance.

High mechanical strength.

Alnico Grades: AlNiCo2, AlNiCo3, AlNiCo5, AlNiCo5DG, AlNiCo5-7, AlNiCo6, AlNiCo8HC, AlNiCo8, and AlNiCo9

Shapes and size: cylinder, customized size;

Coatings: Clolored paint, Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;

Applications: Industrial magnets, Educational

Stanford Magnets specializes in manufacturing and supplying AlNiCo cylinder magnets applied in various industrial applications. We have advanced technology, rich experience, and professional engineering technicians in this field. If you require a specific size, please contact us for a quote.


What is an Alnico cylinder magnet?
An Alnico cylinder magnet is a rod-shaped magnet made from an Alnico alloy. The cylindrical shape provides a uniform magnetic field along the length of the cylinder, with the magnetic poles typically located at the flat circular surfaces on the ends.
What are the key features of Alnico cylinder magnets?
High Temperature Resistance: Alnico cylinder magnets can withstand high temperatures, up to 540°C (1000°F), without losing their magnetic properties. Corrosion Resistance: These magnets exhibit excellent resistance to corrosion and do not usually require protective coatings. Magnetic Stability: Alnico magnets offer superior stability over a wide range of temperatures and are less likely to become demagnetized compared to some other types of magnets.
What applications are Alnico cylinder magnets used for?
Due to their shape and properties, Alnico cylinder magnets are suitable for a variety of applications, including: Sensors: Used in various types of sensors due to their stable performance over a broad temperature range. Electric Motors: Their high-temperature resistance makes them ideal for use in electric motors and generators. Educational Tools: Often used in educational settings to demonstrate magnetic principles and the behavior of magnetic fields.
How strong are Alnico cylinder magnets?
While Alnico magnets are known for their temperature stability and resistance to demagnetization, they generally do not provide the same level of magnetic strength as rare-earth magnets like neodymium. However, their strength is sufficient for many applications, especially where high temperature and stability are required.
Can Alnico cylinder magnets be customized?
Yes, Alnico cylinder magnets can be customized in terms of size, diameter, length, and magnetic orientation to meet specific requirements. However, the extent of customization may be limited by manufacturing processes and the physical properties of the Alnico material.
How are Alnico cylinder magnets magnetized?
They are typically magnetized along their length, with each end of the cylinder acting as a magnetic pole (North and South). This magnetization process requires a strong direct current (DC) magnetic field.
How should Alnico cylinder magnets be handled and stored?
Handling: Care should be taken to avoid dropping or striking the magnets, as they are brittle and can chip or break. Storage: They should be stored in a dry, mild environment. Storing magnets in pairs, with their opposite poles facing each other, or using a metal keeper, can help maintain their magnetism over time.
Can Alnico cylinder magnets be used outdoors?
Yes, their excellent corrosion resistance makes them suitable for outdoor applications. However, it's still important to consider the specific environmental conditions they will be exposed to.
Are Alnico cylinder magnets affected by nearby magnetic fields?
While they have good resistance to demagnetization, exposure to strong magnetic fields should be avoided as it can potentially alter their magnetic orientation or strength.
Can Alnico cylinder magnets be remagnetized if they lose their magnetism?
Yes, if they become demagnetized, Alnico cylinder magnets can be remagnetized using a strong magnetic field. This process is best performed by professionals to ensure the magnet is correctly aligned and returns to its optimal magnetic strength.

Protocols and articles

Related Articles
Cast AlNiCo Magnets Vs. Sintered AlNiCo Magnets
Comparing Alnico 2, 3, 4, 5, and 8 Pickup Magnets: A Comprehensive Overview
Alnico Magnets: From Electric Guitars to Particle Accelerators
Alnico vs. Rare Earth Magnets: Understanding the Differences and Applications


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