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Alnico V Magnets

Why Choose Us?

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Expertise and Experience
20+ years of experience in the magnet industry, all our sales have 12+ years expertise and knowledge in various types of permanent magnets.

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Customization
Most of permanent magnets are customized according to drawing and requests.Be flexible in accommodating customer needs, whether it involves order adjustments, additional information, or other special requests.

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Diverse Product Range
Besides Neodymium magnet, we also provide Alnico magnet, Samarium Cobalt (SmCo) magnet, Ferrite(ceramic) magnet, Flexible magnet(Rubber magnet) and Magnetic Products.

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Quality Assurance
All magnets are under our strict quality control. We assure you what we offer is superior and quality products. From the beginning of the production to the inspection of finished goods, we pay attention to every detail and try our best to avoid any mistakes carefully.

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Effective Communication
Provide responsive and effective communication during the purchasing process, addressing any inquiries promptly and offering support to ensure a smooth transaction.

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Timely Delivery
15-30 days according to magnet order information.We promise timely delivery to ensure you receive the goods on time.

What Are Alnico V Magnets

An alnico V magnet is a permanent magnet made by combiming aluminum, nickel, iron, cobalt, and other elements. They come in isotropic, non-directional, or anisotropic, mono-directional, form. Once magnetized, they have 5 to 17 times the magnetic force of magnetite or lodestone, which are naturally occurring magnet materials that attract iron.
Alnico V magnets have a low temperature coefficient and can be calibrated for high residual induction for use in high temperature applications as high as 930°F or 500°C. They are used where corrosion resistance is necessary and for various types of sensors.

The Manufacturing Method of Alnico V Magnets

Alnico V magnets are manufactured through either casting or sintering processes.
Cast magnets are manufactured by pouring a molten metal alloy into a mold and then further processing it through various heat-treat cycles. The resulting magnet has a dark gray exterior appearance, and may have a rough surface. Machined surfaces have a shiny appearance similar to steel.
Sintered magnets are manufactured by compacting fine alnico powder in a press, and then sintering the compacted powder into a solid magnet. Assemblies assemblies can be fabricated by adhering magnets with adhesives to suit a range of environments, by mechanically fastening magnets, or by a combination of these methods. Due to the relatively brittle nature of these magnet materials, press fits are not recommended.
Surface treatments the corrosion resistance of alnico is considered excellent , and no surface treatments are required. Alnico V magnets are easily plated for cosmetic reasons if required.
Machining alnico is hard and brittle, and prone to chipping and cracking. Special machining techniques must be used to machine this material. Holes must be made by EDM methods. We are fully equipped to machine these materials to your blueprint specifications.
Magnetizing and handling alnico V magnets require magnetizing fields of about 3 kOe. Because of their relatively low coercivities, special care should be taken to assure that these magnets are not subjected to adverse repelling fields, since these could partially demagnetize the magnets. Magnetized magnets should be stored with keepers to reduce the possibility of partial demagnetization. If alnicos are partially demagnetized, they may be easily remagnetized.
Temperature effects up to about 1,000 F, changes in magnetization are largely reversible and re-magnetizable, while changes above this are largely structural and not fully reversible or re-magnetizable.
Approximately 90% of room temperature magnetization is retained at temperatures of up to 1,000 F.
Material characteristics cast alnico materials commonly contain casting voids and hairline cracks within the material. These can be exposed by finish machining.

Uses of Alnico V Magnets

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Motors
Alnico rotor magnets have multiple poles with alternating polarity. The hole in the rotor allows it to be mounted on a shaft. They are excellent for use in synchronous motors, dynamos, and air turbine generators.

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Cow Magnets
Cow magnets are tools to save the lives of cows, when they eat grass, dirt, nails, staples, and bits of baling wire. When iron items work their way through the stomachs of cows, they cause "hardware disease", which threatens the cow's vital organs and causes irritation and inflammation. The magnet is inserted into the cow's mouth at around one year of age as a pill and lodges in the cow's second stomach to attract the stray metal.

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Alnico V magnets in Speakers
Alnico V magnets are preferred in speakers because they allow for precision tuning of the magnetic field in the air gap, which creates optimum acoustic performance. The air gap is the space between the poles of a magnet, or the space between the magnet and the surface on which it is placed. In the case of speakers, one pole of the magnet surrounds the other pole. The magnetic field in the air gap is very strong and requires precise control, which is possible with alnico V magnets.

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Electric Guitar Pickups
One of the most popular uses of alnico V magnets is in electric guitar pickups. The purpose of pickups to convert the vibrations of the guitar string's into electrical signals, which are sent on to the amplifier to boost the guitar strings volume. The magnetic properties of alnico 2, 3, 4, and 5 magnets makes them ideal for this application. The pickup makes it possible for an electric guitar to be heard over loud noises.

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Grate Magnets
Grate magnets are a protective device installed in hoppers, floor openings, vertical chutes, and ducts. They are designed to catch and trap fine iron contamination. Weakly magnetic or very fine iron contaminants become trapped in the grate and are later wiped off.

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Alarm Systems
Extremely sensitive and accurate equipment depend on alnico V magnet's electrical conductive capacity to activate and deactivate electrical circuits. In alarm systems, alnico V magnets are used to complete the electrical circuit on the system when the system is closed and in the attraction position. When there is unauthorized access, the circuit is broken and the alarm is activated. In certain applications, the system will turn off a device or other equipment.

Key Benefits of Alnico V Magnet Material

● Excellent temperature stability up to 1,000° F, 90% of room temperature magnetization is retained up to this temperature.

● High residual induction: Alnico V magnets can produce powerful fields in certain configurations.

● Alnico material does not corrode.

● Cast alnico V magnets can be produced in relatively complex shapes.

● Tooling for cast magnets is relatively low, since sand molds are generally used for the casting process.

Precautions for Handling Alnico V Magnets

There are many things we need to pay attention to when using alnico V magnets. When we use alnico V magnets, we must follow the relevant specifications, because the characteristics of different alnico V magnets are different.
When using alnico V magnets, we have to consider their working environment, because some special alnico V magnets will change their magnetic properties and other properties in certain environments. In some high-temperature environments, the magnetic properties of some alnico V magnets will weaken or even disappear, so we can no longer use them. Whether the use of alnico V magnets is standardized or not often affects the product performance, so some specifications need to be paid attention to when we use alnico V magnets.
When using alnico V magnets, try to use them individually, because if multiple alnico V magnets are used at the same time, they may collide. If damage occurs, the actual user experience will be greatly reduced. In addition, once the large alnico V magnets collide violently, the fragments of the magnets may hurt people's eyes.
After use, it is necessary to store the alnico V magnet correctly. Improper storage will affect the performance of the alnico V magnet to a certain extent. Do not place alnico V magnets in a humid environment. Air with moisture may corrode the surface of alnico V magnets, which will affect the experience of using alnico V magnets.

Make Sure Alnico V Magnets Are Properly Stored

Storing your alnico V magnets in the correct fashion can strongly aid in the length of their lifespan. To get the most out of your alnico V magnets:

Store your alnico V magnets with a keepe: A keeper is a small piece of iron that is generally added temporarily between the north and south poles of a alnico V magnet. It prevents the alnico V magnet from dealnico V magnetising by redirecting its alnico V magnetic field.

Store your alnico V magnets in pairs: Keep alnico V magnets in pairs to avoid both north and south sides from touching. Both poles of the same alignment should never be allowed to touch, as this will cause the alnico V magnetic fields to repel and cause the alnico V magnets to weaken over time.

A dry place: Corrosion easily occurs to alnico V magnets that are stored in a damp environment. Corrosion will affect the strength of the alnico V magnets, especially if they rust, which causes an air gap. This will produce an insecure bond for ferroalnico V magnetic materials. Also, if alnico V magnets get wet, it can cause the laminate to bubble. If a alnico V magnet must be used in wet environments, make sure you're using a alnico V magnet designed for water, and that the alnico V magnet is dried and cleaned regularly.

Keep in a non-ferroalnico V magnetic space: When storing multiple alnico V magnets, keep them in a non-ferroalnico V magnetic container. The container your alnico V magnets are stored in will help the alnico V magnet avoid attracting any undesirable metal debris.

Benefits of Alnico V Magnets

Some key benefits of alnico V magnets include:

High Temperature Stability

Alnico V magnets can maintain their magnetic properties at high temperatures, making them ideal for use in high-performance applications that require magnets to operate in harsh environments.

Resistance to Corrosion

Alnico V magnets are highly resistant to corrosion, which helps to extend their lifespan and maintain their magnetic properties over time.

Good Thermal Conductivity

Alnico V magnets have good thermal conductivity, which means they can dissipate heat more effectively than some other types of magnets. This property helps to reduce the risk of overheating and damage to the magnet.

Strong Magnetic Field

Alnico V magnets are known for their strong magnetic field, which makes them suitable for use in high-performance applications where a strong magnetic field is required.

Versatility

Alnico V magnets are available in a wide range of sizes and shapes, and can be easily magnetized in different directions. This versatility makes them suitable for a variety of applications.

Safety Information - Alnico V Magnets Safety

Children
Children should never be allowed to play with neodymium alnico V magnets. Even relatively small alnico V magnets can cause blood blisters and cuts and tiny alnico V magnets can cause serious injury if swallowed.
If more than one alnico V magnet is swallowed, they can attract each other through the walls of the intestines, get stuck and pinch the digestive tract causing major swelling and even life-threatening injuries requiring surgery. Always keep all neodymium alnico V magnets out of the reach of children.

Crushing, cuts and blisters
Fingers can quickly become caught between alnico V magnets causing blood blisters or cuts. Wear gloves when handling larger alnico V magnets and always handle with care. Larger alnico V magnets (30 cm3 (11.8"3)+) can easily crush fingers and break bones.

Breaking and chipping
Alnico V magnets slamming together is the most common cause of broken alnico V magnets and it is possible that one or both alnico V magnets could chip or shatter. Due to the force exerted by the alnico V magnets, it is possible that chips may fly off at high speed into someone's eye, therefore we advise that when handling more than one neodymium alnico V magnet that you wear eye protection. Chips and broken alnico V magnets can also be quite sharp, so treat them as carefully as you would broken glass.

Electronics
Always keep a safe distance (at least 10cm (3.94")) between alnico V magnets and all objects that can be damaged by alnico V magnetism and remember, neodymium alnico V magnets are ten times stronger than 'ordinary' alnico V magnets! Items such as mechanical watches, heart pacemakers, crt monitors and televisions, credit cards, diskettes and other alnico V magnetically stored media such as video tapes are all affected by powerful alnico V magnets.

Separating
It is five times easier to slide a alnico V magnet from a ferrous surface than pull it off vertically. Small alnico V magnets can usually be separated by hand by sliding one from the other using a sideways motion. If you are unable to do this with your hands alone then a good tactic is to place the two alnico V magnets overhanging the edge of a desk or table and slide one vertically downwards. Once separated, keep the free alnico V magnet moving away until a safe distance from the other(s) to avoid them snapping back together.

Our Factory

Everbeen Magnet is located in Xiamen, a coastal city on the southeast coast of China. It has ocean shipping and air shipment ports leading to all over the world, with a developed economy and convenient logistics.
Everbeen Magnet specializes in the development and processing of various permanent magnet materials such as NdFeB,Ferrite magnets and accessories, electronic components, and magnetic application devices. We have been deeply involved in the field of permanent magnet materials for more than 20 years. We can Adopt sophisticated process management and high-quality services to meet customer needs, accurately provide cost-effective products.

Main Production Equipment

Quality Certificate

FAQ

Q: Do alnico V magnets corrode?

A: They are so resistant to corrosion that even when exposed to motor oil, solvents, petrol and alcohol, they do not corrode.

Q: What is the difference between alnico 2 and alnico 5?

A: AlNiCo V has a stronger magnetic pull than AlNiCo II or III. This translates into tighter low end response and a more aggressive, edgy tone. A good way to imagine the difference between alnico V magnets is to compare them to shocks in a car.

Q: How do you store alnico V magnets?

A: Alnico V magnets should be stored in a low humidity and mild temperature environment. The magnetized Alnico alloy is very strong and it will attract ferrous particle from the air and surrounding surfaces. These particles will accumulate and appear as small "hairs" on the surface of the magnet or packaging.

Q: Can you machine alnico V magnets?

A: Machining alnico is hard and brittle, and prone to chipping and cracking. Special machining techniques must be used to machine this material. Holes must be made by EDM methods. We are fully equipped to machine these materials to your blueprint specifications.

Q: What is the maximum temperature for alnico V magnets?

A: Alnico V magnets can be used for continuous duty applications where temperature extremes of up to 930°F (500°C) can be expected. Temperatures above 1000°F will result in permanent metallurgical changes which can only be recovered by reheat treating.

Q: How strong are alnico V magnets?

A: Sintered anisotropic alnico V magnets have a maximum energy product range of 4.45-5.5 MGOe while stronger cast anisotropic alnico V magnets range from 4.25-10 MGOe. Anisotropic magnets have their direction of magnetism permanently set during their manufacturing process giving them a stronger magnetic performance.

Q: What are the main characteristics of alnico V magnets?

A: Alnico V magnets offer high magnetic strength, energies but low coercivities. They are less brittle than Rare Earth magnets, are highly resistant to corrosion, have excellent temperature stability and can be used at very high temperatures. Manufactured through either a casting or sintering process, they can be made into complex shapes (such as horseshoe shapes) that are not possible with other magnet materials.

Q: What grades & shapes are available for alnico V magnets?

A: Grades 5 and 8 are the most commonly used Alnico grades. Non-standard shapes can be custom fabricated to blueprint specifications from raw stock in sintered, or cast forms, & we can custom manufacture virtually any shape & size to meet your specialty requirements.

Q: Are there machining constraints for alnico V magnets?

A: Alnico V magnets are hard and brittle, and prone to chipping & cracking. They require very careful machining & it is not generally recommended that these materials be used for structural or decorative purposes. Machining or drilling cannot be accomplished by ordinary methods. Cutting & grinding should be done prior to magnetizing. Holes must be made by EDM methods. We are fully equipped to machine these materials to your blueprint specifications.

Q: What are some common applications for alnico V magnets?

A: Instrumentation, meters, microwave devices, actuators, holding devices, sensors, are among the most common applications for alnico V magnets.

Q: Are alnico V magnets good?

A: Alnico V magnets are a great choice for very high temperature applications, with grades capable of operating at temperature up to 550 degrees C (1022 degrees F).

Q: Is alnico a rare earth magnet?

A: Alnico V magnets are made from an alloy of aluminum (Al), nickel (Ni), and cobalt (Co), along with iron and sometimes copper and titanium. Rare Earth Magnets are made from alloys of rare earth elements.

Q: Are alnico V magnets better than neodymium?

A: Neodymium or rare earth magnets are some of the strongest permanent magnets available and offer higher performance than Alnico and ferrite, however, Alnico remains one of the most commonly used materials in several applications.

Q: What are the advantages of alnico V magnets?

A: The advantages of alnico V magnets are high remanence (up to 1.35T) and low-temperature coefficient. When the temperature coefficient is -0.02%/℃, their maximum operating temperature can reach about 520℃.

Q: Do alnico V magnets lose their magnetism?

A: Their output changes least when operating at high temperatures when compared to other types of magnet such as ferrite/ceramic magnets, or rare-earth magnets. However, regular increasing temperatures can lead to some loss of magnetism but this very much depends on the shape and size of the magnet.

Q: Are alnico V magnets brittle?

A: Care should be taken when handling alnico material since it is brittle and can chip or break if dropped on a hard surface. Also, because it has a low resistance to demagnetization, it will lose power if it is stored improperly (poles repelling each other).

Q: Where are alnico V magnets used?

A: While alnico V magnets have largely been replaced by stronger rare-earth magnets, alnico are still commonly used in the manufacturing of sensors, guitar pickups, relays and high temperature handling equipment. alnico V magnets play a critical part in all electro permanent magnetic chucks and lifting magnets.

Q: How to tell the difference between ceramic and alnico V magnets?

A: Ceramic pickups are brighter and harsher than alnico pickups, as well as usually having higher output. They have strong and sharp highs, pronounced upper mids, punchy bass, and more compressed dynamics.

Q: What is the best alnico V magnet?

A: Alnico 5 is the strongest of the three alnico grades. The tone and response of the magnet is more powerful than its two cousins. This makes it perfect for bridge pickups, where there is the least vibration. If you want an aggressive, in-your-face kind of sound, Alnico 5 is your best bet.

Q: What are the facts about alnico V magnets?

A: Alnico V magnets are generally stronger than regular ferrite (ceramic) magnets, they are also electrically conductive unlike ceramic/ferrite magnets. To their advantage, alnico magnets though still brittle are typically less brittle than most rare-earth magnets and produce a strong magnetic field.

As one of the most professional alnico v magnets manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized alnico v magnets at competitive price from our factory.

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