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Tiếng ViệtDon't worry if you don't know which magnet you need for your motor project. Just tell us your applied industry, product performance parameters, size and quantity, we will recommend the most suitable product for you with our rich experience.
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Place of Origin:
Zhejiang, China
Brand Name:
ZK
Application Field:
EV,Automobile, Electric Bicycle,Ceiling FAN, Home Appliances,AI smart humanoid robots,etc.
Type:
Micro Motor
Construction:
Permanent Magnet
Commutation:
Brushless
Motor Features:
High Torque High Power Density
PM shape:
Rectangular/block,ring,arc/segment or customized
+86-15857968349
Magnets play an essential role in brushless direct current (BLDC) motors, which are commonly used in various applications, including electric vehicles, wind turbines, and robotics. In the BLDC motor, magnets generate the magnetic field required for the motor to run. There are two types of magnets commonly used in BLDC motors: neodymium iron boron (NdFeB) magnets and ferrite magnets. These magnets differ in their composition, magnetic properties, and shapes, which affect their performance and suitability for different applications.
Don't worry if you don't know which magnet you need for your motor project. Just tell us your applied industry, product performance parameters, size and quantity, we will recommend the most suitable product for you with our rich experience.
With a strong engineer team and professional production lines, Zhongke can design and produce magnet in all shapes according to your needs.
If you are not sure about the performance parameters of the product, you can send us a sample, we will do a professional test, determine the performance parameters and issue a report for your reference.
Exclusive customer service 7x24 hours to get professional help, make an appointment with a professional technical engineer to get a comprehensive solution.
Publicly traded listed magnet company in China. Our magnet supplied to many large, medium-scale customers including SAMSUNG, Nidec, Xiaomi, GREE, Midea, WOLONG, amazon, etc. We manufacture type of Ferrite Magnet and Neodymium(NdFeB) Magnet for electric motor, widely used in the field of new generation consumer electronics and energy-saving home appliances.
Just tell us your applied industry, product performance parameters, quantity and size, we will recommend the most suitable magnet for you.
NdFeB magnets are made from neodymium, iron, and boron, and are known for their high magnetic strength, low weight, and compact size. These magnets are commonly used in high-performance motors and generators due to their excellent magnetic properties, such as high coercivity, high energy density, and high Curie temperature. NdFeB magnets come in various shapes and sizes, depending on their application requirements.
The most common shapes are:
1. Rectangula/block NdFeB magnets: These magnets are rectangular in shape and are used in motors with rectangular rotor designs. They provide a strong magnetic field and high rotational speed, making them suitable for high-speed motors.
2. Ring-shaped NdFeB magnets: These magnets are round or ring-shaped and are used in motors with circular rotor designs. The ring shape allows for a more uniform magnetic field, resulting in smoother operation and less noise.
3. Arc or segment-shaped NdFeB magnets: These magnets are designed to fit into a circular arc or segment and are used in motors with curved rotors. They provide a strong magnetic field and high torque, making them suitable for high-torque applications.
Ferrite magnets, also known as ceramic magnets, are made from iron oxide and other metallic oxides and are known for their high coercivity and low cost. Ferrite magnets are commonly used in low-performance motors, such as household appliances and water pumps.
Ferrite magnets come in various shapes, including:
1. Rectangular/block ferrite magnets: These magnets are rectangular in shape and are used in motors with rectangular rotor designs. They provide a weaker magnetic field than NdFeB magnets, resulting in a lower torque and rotational speed.
2. Ring-shaped ferrite magnets: These magnets are round or ring-shaped and are used in motors with circular rotor designs. They provide a weaker magnetic field than NdFeB magnets, resulting in a lower torque and rotational speed.
3. Arc or segment-shaped ferrite magnets: These magnets are designed to fit into a circular arc or segment and are used in motors with curved rotors. They provide a weaker magnetic field than NdFeB magnets, resulting in a lower torque and rotational speed.
The choice of magnet shape depends on the motor's design requirements, operating conditions, and performance goals.
: 1. Rectangular/block magnets: these magnets have a high magnetic flux density and are suitable for high-speed applications. However, due to their limited geometry, they may not provide a uniform magnetic field, resulting in cogging or torque ripple.
2. Ring-shaped magnets: these magnets provide a more uniform magnetic field and are suitable for low-speed and low-torque applications. However, they may not provide enough magnetic strength for high-speed applications.
3. Arc or segment-shaped magnets: these magnets provide a high torque and are suitable for high-torque applications. However, their geometry may cause uneven magnetic field distribution and cogging.
4. Ferrite magnets: ferrite magnets are cheaper than NdFeB magnets and can withstand higher temperatures. However, they have lower magnetic strength and are suitable for low-performance applications only.
Zhejiang Zhongke Magnetic Industry Co.,Ltd. is a leading manufacturer of NdFeB and ferrite magnets in China. The company has over 20 years of experience in the magnetic industry and employs over 1000 people. The advantages of Zhejiang Zhongke Magnetic Industry in manufacturing different magnet shapes are: 1. Advanced technology: Zhejiang Zhongke Magnetic Industry Co.,Ltd. uses advanced production technology and equipment, such as the strip casting method, hydrogen decrepitation, and jet mill grinding, to produce high-quality NdFeB and ferrite magnets with various shapes. 2. Customization:Zhejiang Zhongke Magnetic Industry Co.,Ltd. offers custom magnet designs and sizes to meet specific customer needs. The company has a strong R&D team that can design and produce magnets with precise tolerances and complex geometries. 3. Quality control: Zhejiang Zhongke Magnetic Industry Co.,Ltd. has a rigorous quality control system that ensures the magnets meet international standards, such as ISO9001:2015, ISO14001:2015, and OHSAS18001:2007. The company conducts strict testing and inspection procedures, including magnetic properties test, dimensional measurement, and visual inspection. 4. Competitive pricing: Zhejiang Zhongke Magnetic Industry Co.,Ltd. offers competitive pricing for their NdFeB and ferrite magnets, making them an attractive option for customers looking for high-quality magnets at a reasonable price.
Zhongke is committed to becoming a world-renowned supplier of permanent magnet material application solutions in the field of new generation consumer electronics and energy-saving home appliances.
The company's current production process of permanent ferrite magnets is as follows: the purchased pre-fired materials are mixed according to their own formula and ingredients, and after being ball milled by a ball mill, ferrite is produced through steps such as precipitation, wet pressing, sintering, and grinding. Body magnetic tiles, ferrite magnets and other finished products. The specific production process flow chart is as follows:
The strontium ferrite calcined material (the main component is SrFe12O19) is mixed with calcium carbonate, silicon dioxide, strontium carbonate, lanthanum oxide, cobalt oxide and other ingredients according to the formula ratio.
The raw materials are added with water and pulverized by a ball mill to form a slurry, which is placed in a sedimentation tower for precipitation.
The dehydrated material formed by precipitation is made into a green body through an automatic press in a normal air environment.
The raw body is sintered at high temperature into a mature body through a wet-pressed magnetic tile electric-fired roller kiln or a wet-pressed magnetic steel gas-fired roller kiln.
The cooked blank is processed by a fully automatic grinding machine processing line to form a finished product.
The magnetic properties, appearance, size and other indicators of the magnets are inspected, packed and put into storage.
The company has applied and improved a number of advanced technologies in the industry, such as high-performance ferrite slurry stabilization technology and secondary ball milling batching technology, which has solved the quantitative problem of material added in the preparation process. And we use double coupling dispersion and fine grinding to overcome the problems of slurry agglomeration and particle size distribution consistency. The performance of the slurry obtained in the ball milling process is more stable, which reduces the unit operating time of the ball milling equipment, improves product quality, and reduces production costs.
The company uses a unique new green release agent independently developed to prepare magnetic tiles. The new green release agent is an organic combination of microbial technology and surface release treatment technology, which can degrade oil molecules, reduce the oil content of the release agent, and restore the surface. active lipophilic factor. The product is combined with the surface release process, and the release effect of the magnetic tile is improved through a new release agent, and the surface finish of the blank is improved. The demoulding technology has the characteristics of simple preparation method and convenient application, and improves production efficiency.
By transforming the sintering preheating system equipment, the company reduces the water content of the sintered green body in the kiln, greatly reduces the waste rate caused by factors such as cracking and lack of oxygen during sintering, and improves the sintering density and mechanical strength of the product. Obtain good microstructure and magnet properties. The company has also realized the sintering base temperature that products with different performances can adapt to through formula adjustment. Products with different specifications, sizes and performances can be co-fired at the same temperature, which significantly improves the production efficiency of the sintering process. In addition, in terms of veneer loading and billet loading, the company has adopted a bulk stacking method that conforms to the company's product features of small shape and light weight after many tests, realizing heavy veneer loading, good sintering atmosphere, and high sintering yield. good effect.
By optimizing the parameters of grinding machines and other processing equipment and improving the process technology, the company has improved the consistency of product thickness to ≤0.02MM within L30MM and ≤0.04MM within L50MM, and has mastered the technology of three-phase motor magnets produced by grinding tooling. Breakthroughs have been made in technical difficulties in the industry, such as product precision and stable equipment performance, and certain innovations have been achieved in technology and equipment.
The company's magnetic tile products are developing in the direction of high efficiency, low consumables, and low energy consumption. For example, through atomic substitution and compound doping, the rare earth-free ZK-5B high-performance motor magnetic tile independently developed by the company reduces the coagulation of magnetic powder, improves the orientation effect, improves the material performance and reduces the production cost by using strong magnetic field to suppress and adding a double dispersant.
WeChat/Zalo/whatsApp: +86-15857968349(Jerry Ma)
Email: mahy@dymagnet.com
No. 28, Changsheng Road, Hengdian Town, Dongyang City, Jinhua City, Zhejiang, China.
Copyright© Zhejiang Zhongke Magnetic Industry Co., Ltd. All Rights Reserved.
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