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40mm neodymium magnet

Description:
Business Type:Manufacturercan(Magnets of any shape and size can be customized)
Delivery Time:15-30 days
Supply Ability:20000000 Piece/Pieces per Month
Shape: Disc, Block, Ring, Arc and so on, Customized, All sizes
Tolerance:±0.05mm
Processing Service:Bending, Welding, Decoiling, Cutting, Punching, Moulding

We accept customized services:
1. Shape and Dimension Requirements
2. Material and coating requirements
3. Processing according to design drawings
4. Requirements for Magnetization Direction
5. Magnet Grade Requirements
6. Surface treatment requirements (plating requirements)
Availability:
Quantity:
One of the main advantages of 40mm neodymium magnet is its high magnetic properties, which are 22 times stronger than traditional magnets. This makes them ideal for applications requiring strong and compact magnetic fields. Additionally, they are highly resistant to demagnetization, making them a reliable choice for long-term use.

One of the key parameters of 40mm neodymium magnet is its Br (residual induction) value, which is a measure of magnetic field strength. Neodymium magnets have a very high Br value, ranging from 11108 to 14046 Gauss, making them the strongest type of permanent magnets available. Another important parameter is their coercive force, or Hc value, which indicates the magnet's ability to resist demagnetization. Neodymium magnets have a high coercive force, ranging from 10056 to 29637 Oersted, making them highly resistant to external magnetic fields and ensuring their long-term stability. At Honesun, we offer a wide range of neodymium magnets in various sizes, shapes, and grades to meet the diverse needs of our customers. Our neodymium magnets are carefully produced and tested to ensure the highest quality and performance. Contact us today to learn more about our 40mm neodymium magnet products and how they can benefit your business.

Product Name
40mm neodymium magnet
Material
Neodymium Magnet/Permanet Magnet
Size
Various kinds or according to customers' request
Shape
Disc, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes are available, Or Customized Shapes
Grade
N35-N52,  N35M-N50M,  N33H-N48H,  N30SH-N35SH and so on
Tolerance in size
+/-0.05 mm 
Direction of magnetisation
Through the thickness or through the diameter
Applications

1. Electronic areas: speakers, headphones, acoustics, sensors and so on.

2. Motor areas: generators, servo motors, micro-motors, vibration motors, elevator motor and so on.

3. Clean Tech Energy: Water flow enhancement, wind turbines.

4. Health care: MRI, medical treatment equipment.

5. Other industries: electric doors and windows, electric vehicle, electric bicycles, computer, phone, boxes, magnetic tools, notebook and so on












40mm neodymium magnet FAQs Guide. With our advanced production techniques and strict quality control, we are committed to providing our customers with the best 40mm neodymium magnet available on the market. We strive for excellence in both our products and services, and we are confident that our 40mm neodymium magnet will meet and exceed your expectations.
1.How do 40mm neodymium magnet contribute to the transportation industry?
2.About 40mm neodymium magnet delivery date
3.How do you store 40mm neodymium magnet?
4.What are the safety precautions when handling 40mm neodymium magnet?
5.About 40mm neodymium magnet production capacity
6.Are there any restrictions on the production or use of 40mm neodymium magnet?
7.What is the manufacturing process for 40mm neodymium magnet?
8.About 40mm neodymium magnet customization services
9.How do you prevent 40mm neodymium magnet from corroding?
10.How do you demagnetize a Neodymium Magnet?
11.How are 40mm neodymium magnet used in magnetic resonance imaging (MRI)?
12.About the scale of 40mm neodymium magnet factory
13.About 40mm neodymium magnet warranty
14.How are 40mm neodymium magnet used in the military?

1.How do 40mm neodymium magnet contribute to the transportation industry?

Neodymium magnets are used in a variety of transportation applications, including electric motors, generators, and brakes. They are used in electric vehicles to help reduce the weight of the vehicle and improve its efficiency. They are also used in hybrid and electric vehicles to help reduce the amount of energy needed to power the vehicle. Additionally, neodymium magnets are used in magnetic levitation trains, which use magnetic fields to lift and propel the train.

2.About 40mm neodymium magnet delivery date

Neodymium magnets are usually shipped within 1-2 business days of ordering. Depending on the size and quantity of the magnets, delivery times may vary.

3.How do you store 40mm neodymium magnet?

Neodymium magnets should be stored in a dry, temperature-controlled environment away from other magnets or magnetic materials. They should also be stored away from moisture, heat, and direct sunlight. It is also important to keep them away from any ferrous materials, as these can cause the magnets to become magnetized and attract each other.

4.What are the safety precautions when handling 40mm neodymium magnet?

We are a professional 40mm neodymium magnet company dedicated to providing high quality products and services. 1. Keep magnets away from children and pets. 2. Wear protective gloves and eye protection when handling magnets. 3. Do not allow magnets to snap together or impact each other. 4. Do not allow magnets to come into contact with electronic devices, such as computers, cell phones, and credit cards. 5. Do not allow magnets to come into contact with pacemakers or other medical devices. 6. Do not allow magnets to come into contact with magnetic media, such as floppy disks, credit cards, and videotapes. 7. Do not allow magnets to come into contact with each other, as they can become permanently magnetized. 8. Do not allow magnets to come into contact with flammable materials, such as gasoline, paint, and solvents. 9. Do not allow magnets to come into contact with liquids, as they can corrode. 10. Store magnets in a dry, cool place away from direct sunlight.

5.About 40mm neodymium magnet production capacity

Neodymium magnets are the strongest type of permanent magnet available. They are made from an alloy of neodymium, iron, and boron. The global production capacity of neodymium magnets is estimated to be around 10,000 tons per year. The majority of neodymium magnets are produced in China, with other countries such as Japan, the United States, and Germany also producing them.

About 40mm neodymium magnet production capacity

6.Are there any restrictions on the production or use of 40mm neodymium magnet?

Yes, there are restrictions on the production and use of neodymium magnets. Neodymium magnets are subject to the European Union's Restriction of Hazardous Substances (RoHS) directive, which restricts the use of certain hazardous materials in electrical and electronic equipment. Additionally, neodymium magnets are subject to the International Maritime Organization's (IMO) International Maritime Dangerous Goods (IMDG) Code, which regulates the transport of hazardous materials by sea. Finally, neodymium magnets are subject to the United Nations' International Atomic Energy Agency (IAEA) regulations, which regulate the use of radioactive materials.

7.What is the manufacturing process for 40mm neodymium magnet?

Our 40mm neodymium magnet products undergo strict quality control to ensure customer satisfaction. 1. Raw Material Preparation: Neodymium magnets are made from an alloy of neodymium, iron, and boron. The raw materials are melted together in a vacuum induction furnace to create a homogenous alloy. 2. Compacting: The molten alloy is then poured into a die and compacted under high pressure to form a solid block. 3. Sintering: The compacted block is then heated in a vacuum furnace to sinter the material, which increases its strength and magnetic properties. 4. Machining: The sintered block is then machined into the desired shape and size. 5. Magnetizing: The machined magnet is then magnetized by exposing it to a strong magnetic field. This process aligns the magnetic domains within the material, creating a permanent magnet.

8.About 40mm neodymium magnet customization services

Neodymium magnets are a type of rare earth magnet that is made from an alloy of neodymium, iron, and boron. They are the strongest type of permanent magnet available and are used in a variety of applications, from consumer electronics to industrial machinery. Neodymium magnets can be customized to meet specific requirements, such as size, shape, and strength. Customization services can include machining, coating, and assembly. Customized neodymium magnets can be used in a variety of applications, including motors, sensors, and medical devices.

9.How do you prevent 40mm neodymium magnet from corroding?

We continuously upgrade our skills and knowledge to adapt to changing 40mm neodymium magnet market needs. Neodymium magnets can be protected from corrosion by coating them with a thin layer of oil, wax, or lacquer. Additionally, they can be stored in a dry, low-humidity environment.

10.How do you demagnetize a Neodymium Magnet?

We focus on teamwork and communication to achieve common goals, We attach great importance to this detail. Neodymium magnets can be demagnetized by heating them to a temperature of around 200°C (392°F) for a few minutes. This will cause the magnet to lose its magnetic properties. It is also possible to demagnetize a neodymium magnet by exposing it to a strong alternating magnetic field.

How do you demagnetize a Neodymium Magnet?

11.How are 40mm neodymium magnet used in magnetic resonance imaging (MRI)?

Neodymium magnets are used in MRI machines to create a strong magnetic field that is used to align the hydrogen atoms in the body. This alignment allows the MRI machine to detect the signals from the hydrogen atoms and create detailed images of the body. The strong magnetic field also helps to reduce the amount of time it takes to acquire the images.

12.About the scale of 40mm neodymium magnet factory

Neodymium magnets are produced in a variety of sizes, shapes, and grades. The size of a neodymium magnet factory can vary greatly depending on the type of magnets being produced. Some factories may only produce small magnets, while others may produce large magnets for industrial applications. The size of the factory also depends on the number of employees and the amount of equipment needed to produce the magnets.

13.About 40mm neodymium magnet warranty

Neodymium magnets are generally covered by a one-year warranty against defects in materials and workmanship. The warranty does not cover damage caused by misuse, abuse, or improper handling. If a magnet is found to be defective, the manufacturer will replace it with a new one.

14.How are 40mm neodymium magnet used in the military?

Neodymium magnets are used in the military for a variety of applications. They are used in navigation systems, guidance systems, and sensors. They are also used in weapons systems, such as magnetic mines, and in the guidance systems of missiles and torpedoes. Neodymium magnets are also used in the construction of military vehicles, such as tanks and aircraft, to reduce their weight and improve their performance.


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Honesun Industrial Co., Ltd. focuses on designing, researching, developing, manufacturing and selling Magnets and Magnetic Assemblies. With more than 15 years' rich experience and considerate services.we have been recognized as a reliable.

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