Segment Arc Motor Magnet

Packaging and Delivery

Product Description

Arc motor magnets, also known as segment magnets, are specifically designed for use in electric motors. Our arc shaped neodymium magnets are shaped as curved segments to fit around the rotor, providing an optimal magnetic field configuration. Segment or arc shaped Neodymium magnets are widely used instead of expensive radial rings in electric motors.

Characteristics of Arc Motor Magnets
Shape and Design
Curved Segments: Arc magnets are curved to match the inner circumference of the motor's rotor.
Uniform Magnetic Field: Their shape allows for a more uniform magnetic field, which improves motor efficiency and performance.
Material
Neodymium NdFeB: The most common material used for arc motor magnets due to its high magnetic strength.
Samarium Cobalt SmCo: Arc segment magnets are used in applications requiring high temperature stability and corrosion resistance.
Magnetic Properties
High Remanence Br: Provides strong magnetic fields.
High Coercivity Hc: Ensures resistance to demagnetization.
Energy Product BHmax: Indicates the overall energy output of the magnet.

Arc Motor Magnet Applications:
Electric Vehicles EVs
Used in brushless DC motors BLDC and permanent magnet synchronous motors PMSM.
Arc magnets provide high torque and efficiency, crucial for performance and range.
Industrial Motors
Found in servo motors, linear motors, and other high-precision motors.
Enhances precision, reliability, and efficiency in automation and manufacturing processes.
Consumer Electronics
Neodymium arc segment magnets are used in high-performance applications such as cooling fans and compact devices.
Ensures efficient operation in limited spaces.
Renewable Energy
Employed in wind turbine generators and other renewable energy systems.
Enhances the conversion efficiency of mechanical energy to electrical energy.

Arc shaped Neodymium Magnets Size:
Normal Size Range: L Length: 1180mm, W Width: 3180mm, H Height: 1.5100mm
Maximum Size: L50 x W180 xH80mm, L180 x W80 xH50mm,
Minimum Size: L1x W3 x H2mm
Orientation Direction Size: Lower than 80mm
Tolerance: Generally /-0.1mm, Particularly /-0.05mm

Machining Method:
Generally, the segment requires grinding and EDM cutting from the big block. Sometimes, the approximate final shape achieved after the EDM cutting needs processing with a shaped diamond grinding wheel which provides the precise dimensions and speeds up the machining process. Before coating, the small segment needs vibration tumbling and the big segment needs manual chamfering.

Main Test Items Before Delivery:
To ensure NdFeB magnets meet requirements, we mainly test the following items: size, weight loss, magnetic properties, flux, flux density, angle deviation, magnetic loss, appearance, coating thickness, corrosion resistance, etc. 
Horizon has been focusing on the development and production of high end series of NdFeB rare earth permanent magnets, which are widely used in permanent magnet motors and generators.
Due to their advantage, NdFeB rare earth magnets have become one of the most important components of permanent magnet motors and generators, whose performance and life time mainly depend on the quality of magnets. Generally speaking, the working environment of motors and generators is very harsh. To adapt to this working environment, we have been devoting ourselves to research and developing NdFeB rare earth magnets specially used for permanent magnet motors and generators since its foundation. For this application, the magnets are available in a wide range of shapes such as block, ring, segment, loaf, wedge, etc.

Arc motor magnets are a critical component in modern electric motors, providing the necessary magnetic fields for efficient and powerful operation. Their curved design, high magnetic strength, and versatility make them ideal for various applications, from electric vehicles to industrial machinery. Selecting the right arc magnet involves considering factors such as magnetic grade, temperature rating, and environmental conditions to optimize motor performance. Welcome to contact us!

Basic Information

About Us

Not only a magnet supplier, but also a magnetic solutions supplier!
Nowadays the technology is developing daily, and then new materials and applications are developed as well. As a leading magnet company, we take advantage of our Neodymium magnets and magnetic solutions to assist you in your increased projects related to magnets.
In order to fullfil this commitment, Ningbo Horizon Magnetic Technologies Co., Ltd was founded by a professional team with a depth of expertise and breadth of experience in the magnet field. We are specialized in the development and production of sintered Neodymium magnets and related magnetic assemblies with facilities in Ningbo, China which is the source of rare earth permanent magnets.
In order to keep with overwhelming customers’ needs, we are equipped with the state-of-the-art research, production and testing equipments, which help us enjoy steady but increasing growth. Because we are a medium-sized company and supply 600 tons of Neodymium magnets and millions of magnetic assemblies per year, we are able to react quickly to the requirements of our customers throughout the world. Our rare earth magnets and magnetic assemblies are popular with hundreds of customers in the fields of electric motor, construction, industrial, defense aerospace, oil gas, and automation robtics. Due to our own medidum size, we quite understand medium-sized companies’ situations, requirements and difficulty. Therefore we are dedicated to cooperating with and helping medium-sized customers out.
When we are supplying customers with all series of Neodymium rare earth magnets, we focus on research and production of high end series which are mainly used in electric motors, such as servo motors, linear motors, traction motors, compressor motors, etc. Thanks to our knowledge in precast concrete industry, for assemblies we concentrate on magnetic assemblies such as shuttering magnets, triangle magnet chamfers, inserted fixing magnets, pot magnets, etc.
You can tell us about your project and we can assist you from idea to serial production. Our technicians and production experts can contribute valuable time and cost effective measures at any stage of your project. No matter whether you are currently designing, developing or in production, Horizon can make a difference.

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