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  • Permanent magnet synchronous motors and AC asynchronous motors
    May 15, 2024
    Permanent magnet synchronous motor is a new type of motor. Permanent magnet synchronous motor has the advantages of simple structure, small size, high efficiency, energy saving and environmental protection, high power factor and low failure rate. Permanent magnet synchronous motor uses permanent magnet instead of excitation winding for excitation. When the three-phase stator windings (each with an electrical angle difference of 120°) of a permanent magnet motor are supplied with a three-phase alternating current of frequency F, a rotating magnetic field moving at a synchronous speed is generated. In steady state, the main pole magnetic field rotates in synchronization with the rotating magnetic field and therefore the rotor speed is synchronized. The rotating magnetic field of the stator and the main pole magnetic field established by the permanent magnets remain relatively stationary, and they interact to produce an electromagnetic torque that drives the motor to rotate and perform energy conversion. Compared with AC asynchronous motors, permanent magnet motors have the following advantages. The external characteristic efficiency curve of a permanent magnet synchronous motor has a much higher efficiency value at light loads compared to an asynchronous motor, which is the biggest advantage of a permanent magnet synchronous motor over an asynchronous motor in terms of energy savings. Usually, when a motor drives a load, it rarely runs at full power. This is because:On the one hand, when the user selects the motor, the power of the motor is usually determined according to the extreme working conditions of the load, and there are few chances for extreme working conditions to occur. At the same time, in order to prevent the motor burned in asynchronous conditions, the user will also give the motor power to leave a margin; on the other hand, in the design of the motor, in order to ensure the reliability of the motor, the designer is usually in the user's requirements on the basis of the power to leave a certain amount of power margins, which leads to the actual operation of more than 90% of the motor working in the rated power of 70% or less, especially when driving a fan or a water pump. As a result, motors usually operate in the light load zone. For induction motors, the efficiency is very low under light load, while permanent magnet synchronous motors can still maintain high efficiency under light load.
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  • NdFeB magnet type comparison table
    May 14, 2024
    Model number cross-reference charts for NdFeB magnets are usually provided by manufacturers or sellers to identify magnets with different specifications and properties. These model numbers usually consist of letters and numbers that represent the magnetic material composition, magnetic properties, and other information. Below is an example of a common NdFeB magnet model number cross-reference. 1.N35-N52: This series of models represents the magnetic performance level of NdFeB magnets, from N35 to N52, the magnetic performance gradually increases. For example, N52 neodymium magnets has the highest magnetic properties and the strongest suction. 2. N, M, H, SH, UH, EH, AH: These letters represent the magnetic temperature coefficient and the maximum use temperature of different grades. For example, N represents the standard level, which is suitable for use in general environments; M, H, SH, UH, EH, AH represent different temperature levels, which are suitable for use in high-temperature environments. 3. 35M, 38H, 42SH: These models are usually expressed as a combination of magnetic performance class and temperature class, e.g. 35M represents N35 class magnets and are suitable for use in medium temperatures (100 degrees Celsius). Br stands for remanent magnetism, remanent magnetism is not surface magnetism, although both are in gauss units, two pieces of the same size and shape of the magnet, the higher the remanent magnetism, the greater the surface magnetism, the stronger the magnetic properties. But two different shapes of magnets, the remanent magnetization may be the same, the remanent magnetization is related to the raw materials. The remanent magnetization is related to the raw material, while the apparent magnetization is related to the size, performance, shape and so on.(BH)max represents the maximum magnetic energy product, the larger the maximum magnetic energy product, the stronger the magnetism.Tw represents the maximum operating temperature, this parameter should be judged according to the magnet L/D ratio.
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  • How many magnet magnetizing directions are there?
    May 10, 2024
    Magnetization direction is the first step in obtaining magnetism in sintered NdFeB magnets, which represents the position of the north and south poles in a neodymium magnet. Neodymium powerful magnets come in a variety of shapes and sizes, and the different shapes each have their own corresponding magnetization direction to choose from. The North Pole is shown in red and the South Pole is shown in gray in all the illustrations in the article.Becoming familiar with the magnet's direction of magnetization will help you determine which direction of magnetization is best for your product and which way it should be oriented to work most efficiently. I. Round and cylindrical magnet magnetizing direction Circular magnets can be either axially magnetized or radially magnetized. Axially magnetized circular magnets have a north pole and a south pole in a large plane. Radially magnetized circular magnets have a north pole and a south pole on the side of a circle. 2.Square Magnets Square magnet size marking: length*width*height. The last position of the general size marking is the magnetizing surface, for example, F20*15*10MM, the magnetizing square of this magnet is 10mm thickness magnetization. If it is F20*10*15MM, then the magnetization interview is in 15mm this face magnetization. 3. Ring magnets Ring magnets can be axially magnetized or radially magnetized. Axially magnetized ring magnets have a north pole and a south pole on a flat surface. Radially magnetized ring magnets have north and south poles on rounded sides. It's actually similar to a circular magnet.  
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  • NdFeB Powerful Magnet with Countersunk Hole
    May 08, 2024
    NdFeB countersunk hole magnets are rare earth permanent magnets with countersunk holes. Countersunk holes, many people are unfamiliar with this, in fact, you can understand the screw holes, the main purpose of the countersunk holes is to be used with the screws, to play a fixed about, and the size of the countersunk holes is best to be the same as the specifications of the screws. Usually, countersunk holes are parallel to the direction of magnetization. Countersunk head holes provide a convenient way to securely fasten magnets to almost any flat surface using matching screws. As a result, they are convenient organizers with unlimited uses in work and life, such as magnetic door latches, magnetic tool holders, cabinet closures, magnetic lights, and many more mounting applications. Using the world's strongest and extremely cost-effective permanent magnets, NdFeB countersunk hole magnets are ideally suited and highly recommended for many applications in the home and industry, including door latches, tool holders, wall mounted artwork, and more! N35, N42, N48, and N52 are common grades of NdFeB magnets. Countersunk pot magnets are countersunk round or square magnets encased in a steel shell. They are an upgraded version of a strong countersunk head magnet, characterized by super strong suction, very durable and super easy to install. What does neodymium iron boron countersunk hole powerful magnet mean?Countersunk pot magnets are countersunk round or square magnets encased in a steel shell. They are an upgraded version of a strong countersunk magnet, characterized by super strong suction, very durable and super easy to install.  
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  • What are the types of electric actuators
    Apr 30, 2024
    I. Linear electric actuator Linear electric actuator is the most widely used type of electric actuator at present, which is characterized by simple structure, convenient operation, high precision, high torque, and is suitable for most of the occasions that require linear rotation. Among them, the material of linear rod is mostly stainless steel, which can improve the friction coefficient. Scope of application: linear electric actuators are suitable for medical equipment, electric beds, industrial automation equipment and other fields. Application scenarios: electric power assisted device, automatic nurse station, medical workstation, human-electric workstation and so on. 2.Angle type electric actuator Angle type electric actuator is mainly in the linear electric actuator based on the addition of a rotary axis, can realize the dual function of linear and rotary motion. Therefore, in some occasions where both linear and rotary movements are required, angle type electric actuator is very suitable. Scope of application: Angle type electric actuators are suitable for industrial equipment, medical equipment, automation equipment and other fields. Application Scenario: Electric nursing bed, adjustable microcomputer lifting table, medical surgical bed, electric wheelchair. 3.Heavy duty electric actuator Heavy-duty electric actuator is generally used in heavy load occasions, its structure is compact, strong load capacity, usually used in a variety of need for limited angle expansion and contraction adjustment occasions. Scope of application: Heavy-duty electric actuators are suitable for heavy industrial equipment, aluminum processing, high-pressure processing and other fields. Application Scenario: High-pressure processing machine tools, glass processing equipment, vertical lifting and lowering attachment devices, stage aerial rods, etc. 4.Miniature electric actuator Miniature electric actuator has a compact structure and long service life, which is suitable for small equipment that is not applicable to the above three types of occasions. The advantages of miniature electric actuator are high reliability, small size, light weight, low noise, fast speed, long service life and so on. Scope of application: miniature electric actuator is suitable for miniature home appliances, fitness equipment, security equipment and other fields. Application scenarios: adjustable desk lamps, smart toilet covers, smart home control devices, fitness instruments, high-definition cameras .
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  • How long do magnets typically last?
    Apr 29, 2024
    The life of a magnet is affected by a number of factors, including the type of magnet, the environment in which it is used, how it is maintained, and the conditions in which it is stored. This article will detail how these factors affect magnet life and provide some suggestions for extending magnet life. Magnets can be roughly divided into two categories: permanent magnets and electromagnets. Permanent magnets, such as neodymium-iron-boron (NdFeB) magnets, are by far the most commonly used and are stable and strong. Electromagnets, on the other hand, require a constant supply of electric current to maintain a magnetic field. Environment of use The environment in which a magnet is used has a direct impact on its life. Temperature, humidity, chemicals and mechanical vibration in the environment can all negatively affect the magnet's magnetic properties. Temperature: High temperatures are one of the main factors that weaken the magnet's magnetic properties. Generally speaking, the maximum operating temperature of permanent magnets ranges from 80°C to 200°C. Beyond this range, the magnetism will be permanently weakened. Humidity: Increased humidity can accelerate the corrosion process of magnets, especially for those with inadequate surface protection. Chemicals: Chemical corrosion is also capable of damaging the structure and magnetic properties of magnets, especially in acidic or alkaline environments. Magnets can have a very long life, but the exact life depends on their type, the environment in which they are used, and how well they are maintained. By understanding these factors and taking proper protective measures, the life of a magnet can be effectively extended. For those applications where magnetism needs to be maintained over a long period of time, it is important to select high quality magnets and maintain them properly.
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  • How to choose the size of the magnet's remanent magnetism?
    Apr 28, 2024
    Strong Neodymium magnets are a common magnetic material, usually made of metal alloys such as iron, nickel and cobalt. They have a wide range of applications in modern industry and daily life, such as electric motors, generators, magnetic brakes, magnetic separators and so on. For the size of the remanent magnet of powerful magnets, whether bigger is better depends on the specific application scenario and requirements. First, let's understand what residual magnetism is. Residual magnetism is the magnetism that remains in a material after a magnetic field has been applied. In the case of a powerful Neodymium magnet, a higher remanent magnetism means that it is able to maintain a stronger magnetism after a magnetic field has been applied, which can be beneficial in some cases. In some applications, such as electric motors and generators, the remanent magnetism provides a continuous magnetic field that enables the conversion and transmission of electrical energy. Therefore, in these applications, the greater the remanent magnetism of a powerful magnet, the better, which can improve the efficiency and performance of the equipment. On the other hand, in applications where controlled magnetism is required, such as magnetic separators and magnetic brakes, excessive remanent magnetism may result in unwanted magnetic disturbances or uncontrollable magnetic forces that can affect the proper operation of the equipment. Therefore, in these applications, the remanent magnetism may need to be precisely controlled to ensure equipment stability and controllability. In addition, the amount of remanent magnetism in a powerful magnet can affect its long-term stability and life. Excessive remanent magnetism can lead to fatigue and demagnetization of the magnetic material, which can shorten the life of the equipment. Therefore, when designing and selecting powerful magnets, it is necessary to consider the size of the remanent magnetization, the requirements of the application, and the long-term stability of the material.
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  • Holiday Notice on 2024 Labor Day
    Apr 26, 2024
    It is kindly informed that our company is scheduled for the Labour Day, and the holidays are from 1st May to 5th May,2024. We will be back to work on 6th May, 2024.   Please prearrange your requests in advance to help us provide the best service possible.To celebrate Labor Day, we're offering a special discount on our entire range.  If you have any needs during the holidays,please feel free to call +8615256011469 or email to [email protected]   As we mark the occasion of Labor Day, we would like to extend our heartfelt gratitude to all the hardworking individuals, who contribute to the success of our business. This special day is a testament to the dedication and perseverance that power the workforce.      
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  • Specific applications of micro motors in automated production
    Apr 25, 2024
    The application of micro motors in automated production lines is wide and deep, covering almost every aspect of the production line.Commonly used are brush DC motors, brushless DC motors, miniature hollow cup motors, etc. Conveyor Belt Drive In automated production lines, conveyor belts are the key equipment for material transportation. Micro-motor as the driving device of the conveyor belt can accurately control the running speed and position of the conveyor belt to ensure that the materials can be accurately and efficiently transferred to the designated position. Industrial Robot Industrial robots are an important part of automated production lines, and they are capable of accomplishing a variety of complex operational tasks. As the power source of industrial robots, micro-motors provide stable and reliable power support for the movement of robots. By precisely controlling the operation of micro motors, industrial robots are able to realize high-precision operations and improve productivity and product quality. Packaging Machinery Micro motors also play an important role in packaging. Micro-motors in packaging machinery can precisely control the cutting and sealing of packaging materials to ensure the accuracy and efficiency of the packaging process. At the same time, the micro-motor can also realize the rapid adjustment and switching of packaging machinery, to adapt to the packaging needs of different products. With the continuous development of science and technology, micro-motor will play a more important role in the automated production line. In the future, micro-motors will move towards a more efficient, more intelligent and more environmentally friendly direction. At the same time, with the popularization and application of intelligent manufacturing, industrial Internet and other technologies, micro-motors will be deeply integrated with these advanced technologies to jointly promote the upgrading and development of automated production lines.
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  • Advantages of micro motors in automated production
    Apr 24, 2024
    Micro motor is a kind of electric motor with small size and high power density, which is widely used in various fields. According to different classification criteria, micro motors can be divided into several categories such as DC micro motors, AC micro motors and stepping micro motors. Automated production line is an important form of modern industrial production, which can realize the automation, intelligence and high efficiency of the production process. As a key component in the automated production line, micro motor has the following significant advantages: 1.Precise control, improve production efficiency Micro-motor has high-precision control ability, can realize the precise control of production equipment. In the automated production line, micro-motor can accurately adjust the running speed, position and strength of the equipment according to the production demand, to ensure the stability and efficiency of the production process. Through precise control, micro motor can reduce the error and waste in the production process and improve the production efficiency. 2.Fast response for increased production flexibility Micro-motor has a fast response speed, and can make adjustments to changes in the production environment in a short period of time. In the automated production line, micro-motor can quickly adapt to different production tasks and production requirements, to achieve rapid switching and adjustment of the production line. This flexibility allows the automated production line to respond to changing market demand, improve the adaptability and competitiveness of the production line. 3.Energy efficient and environmentally friendly, reducing production costs Micro motors are usually designed with high efficiency and energy saving, which can ensure the performance and reduce energy consumption at the same time. In automated production lines, the wide application of micro motors helps to reduce energy consumption in the production process and reduce environmental pollution. At the same time, the long life and low maintenance costs of micro motors also reduce the operating costs of the production line and improve the economic efficiency of enterprises. In addition, micro motors have a high degree of reliability and stability, and are able to maintain stable performance under long hours and high load operating conditions. This enables automated production lines to run continuously and stably, ensuring the successful completion of production tasks.
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  • DC servo motors: which is better, brushed or brushless?
    Apr 22, 2024
    In the field of servo motors, DC servo motors are favoured by the industry for their unique performance characteristics and application advantages. And in the classification of DC servo motors, brushed DC servo motors and brushless DC servo motors are the two most common types. So, for users, brushed or brushless is good? This is a question worth exploring in depth. Firstly, let's learn about brushed DC servo motors. Brushed DC servo motors rely on brushes and commutators to perform the work of commutation of current, and the friction between brushes and commutators is the key to the operation of such motors. As a result of this design, brushed DC servo motors have a quick response and high torque at startup, and are able to provide a large power output. Also, brushed DC servo motors are relatively low cost, which is one of the reasons for their popularity in some applications. However, brushed DC servo motors also have some significant drawbacks. Due to the friction between the brushes and the commutator, this can lead to greater noise and vibration during operation of the motor. At the same time, brush wear is unavoidable and needs to be replaced periodically, which not only increases maintenance costs, but may also affect the stability and reliability of the motor. In addition, due to the presence of brushes, the efficiency of brushed DC servo motors is relatively low, which is one of the reasons why they are limited in high-performance demanding applications. Brushless DC servo motors are designed to commutate current through an electronic commutator, eliminating the need for physical contact between the brushes and the commutator. This design allows the brushless DC servo motor to provide smoother operation with less noise and low vibration during operation. At the same time, because there is no wear and tear problem with brushes, brushless DC servo motors have a longer lifespan and lower maintenance costs. In addition, the efficiency of brushless DC servo motors is relatively high, which can meet the needs of high-performance requirements.However, brushless DC servo motors also have some shortcomings. Since they use an electronic commutator for current commutation, they require a more sophisticated control system for precise control. This leads to the relatively high cost of brushless DC servo motors.
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  • Difference between 540 and 550 motors
    Apr 17, 2024
    The 550 dc motor has a body length of 66mm compared to the 540 motor's body length of 50mm. this shows that the 550 motor is visually quite a bit longer than the 540 motor. Although both have the same diameter of 36mm, the 550 motor has a core diameter of 5mm, while the 540 motor has a core diameter of 3.175mm, showing that the 550 motor has also increased in core diameter. The basic difference is that the KV value is different, that is, the speed is different under the same voltage, the higher the KV value, the higher the speed, but the torque is small. According to the different motors and batteries and models with different sizes of paddles. 550 DC motor. It is usually used for the power part in small machines such as models and toy cars, and has a low power output, usually no more than a few tens of watts.The 550 motor has good acceleration, but is not very fast. It has a longer armature compared to other sizes of motors, so it can generate more heat. The 540 dc motor is a strong magnetic carbon brush motor with 24V 10,000 rpm and a power of about 50-60W. It is mainly used in making equipment such as small electric drills or electric grinders There are two types of motors, brushed and brushless. Brushed motors are motors that transfer power to the armature by contacting the brushes inside the motor. Brushless motors, on the other hand, control the steering and speed of the rotor through an external circuit. Due to the complex structure and high manufacturing cost of brushless motors, the price is also much higher compared to brushed motors.
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