Fiber optics plays a crucial role as a transmission material in all applications involving light. Especially in the field of energy transmission, high-end energy transmission equipment relies on high-precision components. The key parameters of components, such as accuracy, cleanliness, and quality, determine the performance of the equipment.

Take laser cutting machines as an example. Companies in this industry often need to focus their efforts on overcoming the challenges of laser generators, making it difficult to simultaneously develop and produce fiber optic components. Even if successful development is achieved, it is impractical to go through a validation period of 2-3 years before mass production.

Apart from the high requirements of the products themselves, there are also numerous models within the same category, with significant differences in operating principles. This makes it even more critical for component suppliers to deeply cultivate their own professional fields.

With the accelerated development of industries such as medical lasers, cutting laser, and laser manufacturing, fiber optic manufacturers, represented by power transmission fiber optics, will face opportunities for domestic substitution of fiber optic components.

Nanjing Hecho Technology provides customized fiber optic services based on customer needs, using imported fiber optic materials. The products are flexible and meet the differentiated needs of customers in various industries, widely applied in fields such as medical, in vitro diagnostics, semiconductor, and industrial control.

With the deepening of Industry 4.0 and the concept of "Made in China 2025," more and more companies have begun to realize the importance of transformation and upgrading, especially in the automotive manufacturing industry.

China's laser industry has developed rapidly and has a clear competitive advantage, with an increasing market share in the global laser market. In 2022, the total global sales of lasers reached approximately 19.3 billion US dollars, and the Chinese laser market reached 14.74 billion US dollars, with fiber lasers accounting for 51% of the domestic market.

Fiber lasers are a trusted technology that can generate higher value with sufficient energy, empowering the automotive industry.

Nanjing Hecho Technology provides high-power energy transmission fiber and quartz fiber, offering customized optical transmission solutions to customers.

Source: Deng Jiake, Zhong Yi - OESHOW 

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.

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.

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 sales08@egmagnet.com

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.

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.

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.

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.

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.

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.