China Compression Moulded Magnets Manufacturers Suppliers Factory - Made in China

What Is Compression Moulded Magnets

Compression molded magnets are generally used in applications that do not require as much mechanical strength. Made of NdFeB powder and thermosetting epoxy resin binder. Higher magnetic strength that injection molded magnets. Suitable for applications requiring lower mechanical strength.

Why Choose Us

Efficient and convenient
The company has established marketing networks around the world to provide high-quality services to customers in an efficient and convenient manner.

Quality assurance
In terms of quality assurance, the company strictly follows the standards and norms of the industry quality system. Adopt industry-leading testing equipment to ensure product quality and good reputation.

Professional team
We have a team of skilled and experienced professionals who are well-versed in the latest technology and industry standards. Our team is dedicated to ensuring that our customers get the best service and support possible.

Competitive prices
We offer our products at competitive prices, making them affordable for our customers. We believe that high-quality products should not come at a premium, and we strive to make our products accessible to all.

Rich experience
Has a long-standing reputation in the industry, which makes it stand out from its competitors. With over many years of experience, they have developed the skills necessary to meet their clients' needs.

High quality products
We always put customer needs and expectations in the first place, refine on, continuous improvement, to seek every opportunity to do better, to provide customers with their expectations of quality products, to provide customers with the most satisfactory service at anytime.

NdFeB Magnetic Assembly
With the advancement of multidisciplinary cross-technology, composite devices of bonded NdFeB and metal parts will further develop in the direction of intelligence and modularization. Stainless steel
Axially Multipole Magnetized Magnet
Axially multipole magnetized magnet is a special axial magnetization method.Axially multipole magnetized magnet is divided into single-sided multipole and double-sided multipole. Axially multipole
Magnetic Gears
Magnetic Gears, also called magnetic transmission Gears, Magnetic Gear is a device that uses the interaction force between magnetic poles, attraction and repulsion as driving force to achieve
Super Bonded Neodymium Magnet
Product name: super bonded neodymium magnet Specifications: Φ220xΦ216x30mm Material: NdFeB Residual magnetism: 0.75mT (7500Gauss) Processing method: Compression bonded magnet Surface
Sensor Magnetic Ring
Sensor Magnetic Ring
Toy Magnets/Rare Earth Magnets
Toy Magnets/Rare Earth Magnets
Magnet With Anti-rotation Groove
Magnet with anti-rotation groove
Internal Hole Flat Magnet
Product name: Internal hole flat magnet Material: NdFeB 72/70pw permanent magnet Manufacturing process: Molded magnet Orientation: Isotropic magnet Ingredients: praseodymium5%, neodymium15%, iron69%,
NdFeB Plastic Compression Bonded, Isotopic Ring Magnet
Product name：NdFeB plastic compression bonded, isotopic ring magnetMagnetisation type: multipolAmount of poles: 10 polMagnetizing: 50%N/S, 50%S/NMagnetizing side: inner peripheryMagnetizing
Industrial And Commercial Refrigeration/condensation/ice Making Motor Magnets/DC Motor ...
The magnet is used in industrial and commercial refrigeration/condensation/ice-making motor magnets/DC motors, and the motor power is 16W. For example, the refrigeration unit of cold drink equipment
Clean Robot Fan Rotor Magnet(Fan Rotor Assembly).
Clean Robot fan rotor magnet(Fan rotor assembly)
Permanent Magnet For Clean-free Sweeping Robot BLDC Motor
BLDC Motor magnet rotor/DC motor magnet stator

First 12 3 Last

Magnetic Gears

What Is Magnetic Gears

Magnetic gears are non-contact gear systems that utilize magnetic force to transmit torque and motion between rotating shafts. Unlike traditional miter gears, which rely on tooth meshing to transfer power, Magnetic gears feature magnetic poles instead of tooth profiles. These poles generate repulsive or attractive forces, depending on their orientation, and drive gear rotation.

What Are the Applications for Magnetic Gears

Magnetic gears are an innovative technology that have several applications across various industries due to their unique advantages over traditional mechanical gears. Some of the common applications for magnetic gears include.

Wind turbines
Magnetic gears are often used in wind turbines to increase efficiency and reliability. They can help in reducing maintenance costs and improving the overall performance of the wind turbine system.

Marine propulsion systems
Magnetic gears can be used in marine propulsion systems to provide a more efficient and reliable alternative to traditional mechanical gears. They can help in reducing noise and vibration, as well as improving the overall efficiency of the propulsion system.

Electric vehicles
Magnetic gears can also be used in electric vehicles to improve the efficiency of the drivetrain. By using magnetic gears, electric vehicles can achieve higher efficiency and better performance compared to traditional mechanical gears.

Robotics
Magnetic gears are increasingly being used in robotics applications due to their compact size, high efficiency, and low maintenance requirements. They can be used in robotic joints, manipulators, and other motion control systems to improve performance and reliability.

Industrial machinery
Magnetic gears can be used in various industrial machinery applications to provide precise and reliable torque transmission. They can help in reducing maintenance costs and downtime, as well as improving the overall efficiency of the machinery.

Aerospace applications
Magnetic gears can also find applications in the aerospace industry, where lightweight and efficient systems are crucial. They can be used in aircraft systems, satellite mechanisms, and other aerospace applications to improve performance and reliability.

Performance Improvement of Magnetic Gear and Efficiency Comparison with Conventional Mechanical Gear

Magnetic gears can transmit torque without any mechanical contact. Hence, they have low vibration, no wear, and fatigue, which ensure maintenance-free operation. There are various types of magnetic gears. Among them, a planetary type magnetic gear, which consists of coaxial inner and outer rotors with surface-mounted permanent magnet and ferromagnetic stationary parts called pole-pieces, has recently attracted interest since it offers higher torque than other type magnetic gears. This paper presents a comprehensive investigation of the influence of geometry and position of the pole-pieces on torque characteristic based on finite element analysis and experiment. Surveyed parameters of the pole-pieces include lengths in the radial and axial directions and position in the radial direction. Finally, it is demonstrated that the maximum torque of the improved prototype magnetic gear is increased by 45% and the maximum efficiency achieves up to about 99%, which is equal to or more than a conventional planetary type mechanical gear.

Types of Magnetic Gears

Parallel Axis Magnetic Gears
These gears feature two parallel axes where the input and output rotors are situated. The intermediary rotor, located between the input and output, contains alternating pole magnetic pieces which facilitate the transfer of torque.

Coaxial Magnetic Gears
In these gears, the input and output shafts are aligned along the same axis. This design, coupled with the non-contact nature of the gears, allows for excellent torque density and high efficiency.

Planetary Magnetic Gears
Planetary magnetic gears are designed with one or more rotating gear components (planet gears) that revolve around the central, or sun gear. This results in a compact design with high torque output and efficiency.

Cylindrical Magnets

What Is Cylindrical Magnets

Cylinder magnets are commonly used in sensors, reed switches, holding, and medical applications. Cylinder magnets can be magnetised either through the length or across the diameter. Due to their shape cylinder magnets produce a magnetic field with a longer reach.

What Are Some Properties Of A Cylindrical Magnet

A cylindrical magnet, like any magnet, possesses certain properties that are characteristic of magnetic materials. Here are some properties of a cylindrical magnet

Magnetic Field
A cylindrical magnet produces a magnetic field around it. The magnetic field lines generated by the magnet run from the north pole to the south pole outside the magnet and from the south pole to the north pole inside the magnet.

Poles
A cylindrical magnet has two poles - a north pole and a south pole. The magnetic field lines emerge from the north pole and enter the south pole.

Magnetic Strength
The strength of a cylindrical magnet is typically measured in terms of its magnetic moment or magnetic flux density. This strength is dependent on the material the magnet is made of and its size.

Magnetization
A cylindrical magnet can be magnetized in different ways to enhance its magnetic properties. This process aligns the magnetic domains within the material to strengthen the overall magnetic field.

Retentivity
Retentivity, also known as remanence, is the ability of a magnet to retain its magnetization once it has been magnetized. Cylindrical magnets can have different levels of retentivity depending on the material they are made of.

Coercivity
Coercivity is the measure of a material's resistance to becoming demagnetized. A cylindrical magnet with high coercivity will require a stronger external magnetic field to demagnetize it.

Shape
The cylindrical shape of the magnet affects the distribution and strength of the magnetic field it produces. The field is strongest at the poles and gradually diminishes as you move away from the magnet.

Applications
Cylindrical magnets are commonly used in various applications such as electric motors, generators, sensors, speakers, magnetic bearings, magnetic separators, and more due to their unique shape and magnetic properties.

The Application of Cylinder Magnets

Cylinder magnets have a wide range of applications in various industries. Some common applications include:

Motors
Cylinder magnets are often used in motors to produce rotational force. The magnets are typically arranged in a specific pattern to create a magnetic field that drives the motor's rotation.

Generators
Cylinder magnets can also be used in generators to convert mechanical energy into electrical energy. In this application, the magnets are used to generate a magnetic field that is used to produce an electric current.

Sensors
Cylinder magnets are often used in sensors to detect the presence or absence of a magnetic field. For example, they can be used in proximity sensors to detect the presence of metal objects or in hall effect sensors to measure the speed or position of a moving object.

Holding and fastening
Cylinder magnets can be used to hold or fasten objects in place. For example, they can be used to hold tools or other metal objects to a metal surface or to fasten two metal parts together.

Separation
Cylinder magnets can be used to separate ferromagnetic materials from non-ferromagnetic materials. For example, they can be used to separate iron ore from sand or to remove metal contaminants from other materials.

How to Produce Cylinder Magnet

Raw material preparation
The first step in the production process is to prepare the raw materials, which typically include powders of magnetic materials such as neodymium, iron, and boron. These powders are mixed together to create a homogenous mixture.

Compaction
The mixture is then compacted using a hydraulic press or other compaction method to form a dense, uniform mass.

Sintering
The compacted mixture is then heated to a high temperature in a furnace, a process called sintering. This helps to bond the particles together and create a solid, cohesive magnet.

Shaping
The sintered magnet is then shaped into the desired cylinder shape using a lathe or other machining process.

Coating
The surface of the cylinder magnet may be coated with a protective layer to improve its durability and performance. This is typically done using a process called electroplating, in which a thin layer of metal is deposited onto the surface of the magnet.

Testing
The finished cylinder magnet is then tested to ensure that it meets the required specifications for size, strength, and performance.

Neodymium Arc Magnets

What Is Neodymium Arc Magnets

Strong Neodymium arc magnets are a type of permanent magnet made from an alloy of neodymium, iron, and boron (NdFeB). They curved magnets are shaped in segments of a circle, resembling arcs, and are specifically designed to fit into circular or cylindrical assemblies and provide an excellent power to weight ratio.

Neodymium Arc Magnets Key Characteristics

Strong Magnetic Field
Neodymium arc magnets have one of the strongest magnetic fields among permanent magnets, making them highly efficient in applications requiring a compact and powerful magnet.

Custom Shapes
The arc shape is tailored to fit into motors or generators, allowing for a more efficient magnetic field distribution around the rotation axis.

High Coercivity
They have a high resistance to demagnetization, maintaining their magnetic properties under various conditions.

Temperature Sensitivity
While neodymium magnets are known for their strength, their magnetic properties can decrease at high temperatures. Various grades are available to withstand different temperature ranges.

Corrosion Resistance
Arc magnets are often coated to prevent corrosion. Common coatings include nickel, zinc, and epoxy.

Neodymium arc magnets Applications

Electric Motors and Generators

The arc shape is ideal for the circular configurations of electric motors and generators, contributing to efficient energy conversion.

Wind Turbines

Used in the generators of wind turbines to help convert wind energy into electrical energy.

Magnetic Bearings

Employed in high-precision magnetic bearings for reduced friction and wear in various machinery.

Audio Equipment

High-quality speakers and headphones sometimes use neodymium arc magnets for their powerful and precise magnetic fields.

Certifications

productcate-1-1

Our Factory

Highmag Technology (ShenZhen) Ltd is the subsidiaries of AT&M (Stock Code:000969), which is powerful in new material area and completed IPO in Shenzhen Stock Exchange. We are a professional manufacturer of NdFeB magnet, MIM (metal injection moulding) and SMC (Soft Magnetic Composite). We started magnet manufacturing in Taiwan from 1989 and founded ShenZhen factory in 2001. In 2003, the asset restructuring has become a holding subsidiary. During these years, Highmag has performed excellently and received praise from customers for the technology, manufacturing, service, quality, lead time and cost control. Highmag keeps developing new products and new methods and making full use of geographic advantages--Shenzhen, in order to satisfy the wide requirements of customers in various fields.

productcate-1-1

FAQ

Q: What is the main advantage of magnetic gears?

A: Magnetic gear technologies have important advantages over their mechanical counterparts. They can perform the speed change and torque transmission between input and output shafts by a contactless mechanism with a quiet operation and overload protection without the issues associated with conventional mechanical gears.

Q: What are the applications of magnetic gears?

A: The high gear ratio of magnetic gears makes them interesting for stepping up very slow input forces, such as ocean wave power. Magnetic gears can be used in marine propulsion, where they can be used to step down higher input RPM from an engine to the low RPM and high torque required for the propeller shaft.

Q: Do magnetic gears have backlash?

A: Magnetic gears do not present backlash but a linear dependence around the cero point. Magnetic gears, unlike mechanical ones, do not present damage if the torque overpasses the maximum. Magnetic gears are becoming competitive alternatives to conventional gears. They present no contact and no wear.

Q: What are cylindrical magnets?

A: Cylinder magnets are commonly used in sensors, reed switches, holding, and medical applications. Cylinder magnets can be magnetised either through the length or across the diameter. Due to their shape cylinder magnets produce a magnetic field with a longer reach.

Q: What is the shape of a cylindrical magnet?

A: Rod (cylinder) magnets are long, circular magnets where the length exceeds the diameter, commonly used for recessing into a drilled hole for holding applications where larger magnetic fields are required.

Q: What is the difference between bar magnet and cylindrical magnet?

A: A bar magnet whose edges are round and look like a rod is called a cylindrical bar magnet. It has a thickness equal to larger than the diameter enabling high magnetism property. These magnets mainly have their applications in educational, experimental and research use.

Q: What are the properties of cylindrical magnet?

A: A cylindrical shape enables the magnets to produce high levels of magnetism from a relatively small surface pole area. Cylinder magnets are sometimes used in medicine. According to BBC News, some doctors experiment with magnetic rods to treat scoliosis patients.

Q: How many poles has a cylindrical magnet?

A: A magnet of any shape always has two poles: a north pole and south pole. Just like every magnet, a cylindrical magnet also has two poles.

Q: What is the name of cylindrical magnet?

A: Cylindrical bar magnet: Cylindrical bar magnets are also known as rod magnets. The magnetism property of this magnet is higher than other magnets as its thickness is more significant than its diameter. Cylindrical bar magnets are popular in research, experimental, education and other industries.

Q: What is the magnetic dipole moment of a cylindrical magnet?

A: Relation for dipole moment is,M=I×V. Volume of the cylinder V=πr2l, Where r is the radius and l is the length of the cylinder, then dipole moment, M=Iπr2l=(5.30×103)×227×(0.5×10−2)2(5×10−2)=2.08×10−2J/T.

Q: What is the property of cylindrical magnet?

A: Cylindrical or Rod magnets have a thickness which is equal to or larger than their diameter. This enables the magnets to generate very high levels of magnetism from a relatively small surface pole area.

Q: What are neodymium arc magnets?

A: Neodymium arc magnets are a type of rare-earth magnet made from an alloy of neodymium, iron, and boron, shaped in the form of an arc or segment. These magnets are designed to fit the round shape of motors and generators, providing a powerful magnetic field in a specific direction.

Q: How do neodymium arc magnets differ from other neodymium magnets?

A: The main difference lies in their shape. While neodymium magnets can come in various forms, such as discs, blocks, or cubes, arc magnets are specifically cut into arc shapes to fit circular assemblies. This shape allows them to generate a directional magnetic field around the circumference of a circle, making them ideal for rotational applications.

Q: What are the common uses for neodymium arc magnets?

A: Neodymium arc magnets are commonly used in high-performance motors, generators, and turbines. They are also found in electric vehicles, wind turbines, hard disk drives, and in various types of loudspeakers and dynamic microphones due to their ability to produce a strong magnetic field in a specific direction.

Q: Can neodymium arc magnets be customized?

A: Yes, neodymium arc magnets can be customized in terms of size, angle, grade, and magnetic orientation to meet specific requirements. Customization is essential for them to fit precisely in the devices they are designed for, such as specific motor or generator models.

Q: How strong are neodymium arc magnets?

A: Neodymium arc magnets are among the strongest types of magnets available, capable of generating significant magnetic force. The strength of an arc magnet depends on its grade, size, and the design of the magnetic circuit in which it is used.

Q: Are neodymium arc magnets coated?

A: Like other neodymium magnets, arc magnets are typically coated to prevent corrosion. The coatings can include nickel, copper, zinc, or epoxy, which protect the magnet from moisture and chemical exposure.

Q: Do neodymium arc magnets have a specific magnetic orientation?

A: Yes, neodymium arc magnets are manufactured with a specific magnetic orientation that is aligned with the arc's geometry. This orientation is crucial for their use in motors and generators, where the magnetic field needs to interact precisely with the device's other components.

Q: Can neodymium arc magnets lose their magnetism?

A: Neodymium arc magnets can lose their magnetism if exposed to high temperatures, strong demagnetizing magnetic fields, or if they are physically damaged. However, under normal operating conditions, they can maintain their magnetism for decades.

Q: How are neodymium arc magnets manufactured?

A: The manufacturing process for neodymium arc magnets involves melting the raw materials (neodymium, iron, and boron), casting the alloy into ingots, pulverizing the ingots into a fine powder, pressing the powder in a magnetic field to align the particles, sintering to fuse the particles, and then cutting the magnets into the desired arc shape before coating them for protection.

We're well-known as one of the leading compression moulded magnets manufacturers and suppliers in China. Please feel free to buy customized compression moulded magnets made in China here from our factory. Good service and quality products are available.

stator magnets, magnets in electric vehicles, rare earth magnets round