With the increasing awareness of national fitness, physical exercise has become a very popular lifestyle nowadays. Running, as a national sport, has a rapidly growing market and is constantly presenting characteristics of segmentation and diversity. It is worth mentioning that under the epidemic, home fitness has become a new trend, and the home treadmill market has also been further activated. The overall consumption of home fitness equipment is increasing, and treadmills are becoming the fastest-growing category.

In March 2021, the client found our company through Google. He told us that he comes from the CEO of an Italian company, but the DC treadmill motors he purchased often malfunctioned. The old supplier deceived them and sent them 25 faulty motors, a staggering proportion. Therefore, it is necessary to solve the problems of these motors, and there is an urgent need for professional manufacturers to solve these problems and provide high-quality motor products.

At the same time, they pointed out that most treadmills have some common problems. The engine overheats, the temperature rises, and even exceeds 40 ° C, causing damage to the household electricity meter in the house, and the motor cannot work anymore. It is directly short circuited and scrapped, accompanied by a burning smell.



After a clear understanding of the shortcomings proposed by Davide, we found that the above issues can be avoided in the motor production process. On the motor, we have chosen the 180V 4600rpm 1HP 0.75HP treadmill DC motor. In terms of raw material usage, we use high insulation materials above 180 ℃ to ensure the quality of the motor and fundamentally solve the problem of motor heating. In addition, according to customer requirements, in order to withstand a weight of 110 kilograms, we recommend a high-quality motor with 0.75 horsepower to meet ultra heavy loads. We have also applied for a CE certificate specifically for the treadmill motor and promised a three-year warranty to ensure maintenance work in the later stage. In order to solve the installation difficulties faced by customers, we provide customized base mounting plates that are perfectly compatible with their treadmills, completely addressing their concerns.

Regarding our solution, Mr. David stated that the suppliers he contacted ignored his demands because they heard that the procurement quantity was small and the product requirements were high. But our BG motor is very patient, providing a lot of help and guidance, and assisting in investigating some suppliers in China, achieving a friendly cooperation!

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HANNOVER, GERMANY - April 22, 2024
BG Motor is making waves at Hannover Messe 2024 with the launch of their groundbreaking new DC brushless motor. This innovative product boasts impressive performance capabilities while maintaining remarkably low noise levels, making it ideal for a wide range of applications.


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Power Meets Quiet Operation
Engineered for exceptional performance, BG Motor's new DC brushless motor delivers the power needed for demanding tasks. Whether you require consistent operation in industrial settings or smooth, precise control for robotics, this motor is built to exceed expectations.
But power isn't everything. BG Motor understands the importance of noise reduction in today's environments. Their innovative design ensures the motor operates with minimal noise output, creating a quieter and more comfortable work experience.

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Experience the Innovation at Booth E61/1, Hall 6
BG Motor invites visitors at Hannover Messe to explore the new DC brushless motor firsthand. Head over to their booth located in Hall 6, Stand E61/1 to witness this remarkable technology in action.
The BG Motor team is eager to answer your questions and discuss how this new motor can revolutionize your projects.

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Join the Crowd - Witness the Future of Motors
Don't miss this opportunity to experience the future of motors. Visit BG Motor at Hall 6, Stand E61/1 and see for yourself why this new DC brushless motor is taking Hannover Messe by storm.

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A Partnership Powered by Shared Vision
As a seasoned motor manufacturer, BG Motor has consistently strived to provide global customers with high-quality, high-performance motors and solutions. The visit of our esteemed South American partners marks a pivotal moment in our collaborative journey.


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During the insightful meeting, we engaged in comprehensive discussions on:
1、Exploring collaborative models that encompass product development, manufacturing, and market promotion


2、Tailoring customized motor product development to meet the specific needs of the South American market


3、Devising joint strategies to expand our footprint and solidify our presence in the South American market

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Both parties expressed unwavering confidence in the strength of our partnership and the immense potential that lies ahead. Through this strategic alliance, BG Motor and our South American partners are poised to conquer new heights of success, empowering our customers with innovative motor solutions that drive progress.

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BG Motor: Your Trusted Motor Experts
BG Motor remains committed to forging long-lasting partnerships with global collaborators, ensuring that our customers receive exceptional products and services that exceed expectations. We extend a warm invitation to join us in shaping a brighter future together.

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Contact Us
If you are interested in becoming a BG Motor partner, we welcome you to connect with us.
DC Brushed Motor
CONTACT INFO
No.2986 Tiantong South Road, Yinzhou District, Ningbo City, Zhejiang Province, China.
Tel: +86 574 8813 9803
Fax:+86 574 8813 4803
Email: support@us.bg-gudemotor.com
WhatsApp/M: +86 135 6603 3299

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1. Magnetic material: ferrite


Ferrite, also known as ferrite or magnetic porcelain, belongs to non-metallic magnetic materials. It is a composite oxide (or orthoferrite) of magnetic ferric oxide and one or more other metal oxides. Metal oxides with ferrimagnetism, the magnetic force is usually 800-1000 Gauss.
In terms of electrical properties, the resistivity of ferrite is much larger than that of single metal or alloy magnetic materials, and it also has higher dielectric properties. The magnetic properties of ferrite are also shown to have higher magnetic permeability at high frequencies. Therefore, ferrite has become a widely used non-metallic magnetic material in the field of high frequency and weak current. Due to the low magnetic energy stored in the unit volume of ferrite, the saturation magnetic induction (Bs) is also low (usually only 1/3 to 1/5 of pure iron), which limits its use at low frequencies that require higher magnetic energy density. It can be applied in the field of strong electricity and high power.


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2. Magnetic material: NdFeB


NdFeB permanent magnet material is a permanent magnet material based on the intermetallic compound Nd2Fe14B. The main components are rare earth elements neodymium (Nd), iron (Fe), boron (B). Among them, the rare earth element is mainly neodymium (Nd). In order to obtain different properties, it can be partially replaced by other rare earth metals such as dysprosium (Dy) and praseodymium (Pr). Iron can also be partially replaced by other metals such as cobalt (Co) and aluminum (Al). The content of boron is small, but it plays an important role in the formation of tetragonal crystal structure intermetallic compounds, making the compounds have high saturation magnetization, high uniaxial anisotropy and high Curie temperature.
NdFeB is a high-performance rare earth material with high coercive force and high magnetic energy product, and the continuous improvement of this material in recent years has increased the use temperature and reduced the cost of the material. Applying NdFeB rare earth permanent magnet materials to the development of various motors can significantly reduce the quality of the motor, reduce the size of the motor, and obtain high-efficiency energy-saving effects and improve the performance of the motor.


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3. The difference between the two


The advantages of NdFeB are high cost performance and good mechanical properties; the disadvantages are that the Curie temperature is low, the temperature characteristics are poor, and it is easy to pulverize and corrode. It must be improved by adjusting its chemical composition and adopting surface treatment methods. , in order to meet the requirements of practical applications.


Ferrite is a metal oxide with ferromagnetic properties. In terms of electrical properties, the resistivity of ferrite is much larger than that of metal and alloy magnetic materials, and it also has higher dielectric properties. The magnetic properties of ferrite are also shown to have higher magnetic permeability at high frequencies. Therefore, ferrite has become a widely used non-metallic magnetic material in the field of high frequency and weak current.


NdFeB belongs to the third generation of rare earth permanent magnet materials. It has the characteristics of small size, light weight and strong magnetism. It is the magnet with the best performance and price ratio at present. The advantages of high energy density make NdFeB permanent magnet materials widely used in modern industry and electronic technology. In the state of bare magnets, the magnetic force can reach about 3500 Gauss.


Ferrite, also known as ferrite or magnetic porcelain, belongs to non-metallic magnetic materials, and is a composite oxide (or ferrite) of magnetic ferric oxide and one or more other metal oxides. The magnetic force is usually 800-1000 gauss, and it is often used in speakers, speakers and other equipment in addition to motors.


The general differences between NdFeB magnets and ferrite magnets are as follows:


( 1 ) The magnet performance of ferrite is poor, and the magnetic performance of neodymium iron shed is about 3 times that of ferrite.


( 2 ) In terms of price, the price of ferrite is much cheaper than that of NdFeB magnets.


( 3 ) NdFeB magnets have good temperature resistance, but demagnetization will occur if the working temperature exceeds a certain level. Therefore, it is recommended to choose a grade with a higher coercive force in a high-temperature working environment.


( 4 )The stability of ferrite is very good. It is an oxide itself, which is very stable. NdFeB is an alloy, and it is easy to oxidize, so it must be protected by coating.


Therefore, usually in the case of meeting the performance requirements of the motor, it is also necessary to consider better meeting the requirements of high cost performance. BG Motor's technical engineer team and business team will combine your requirements to customize and recommend suitable magnetic materials for you. Usually, brushless DC motors will choose high-performance NdFeB magnetic materials, and brushed DC motors will choose ferrite materials that are more economical; If some customers think that the control system of DC brushless motors is troublesome, we still The structure of the brushed DC motor can be customized, and the NdFeB magnetic material can be used, so that the torque of the motor can be larger, and it is easy to operate and use.

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The performance of motor energy consumption is mainly in the following aspects



1.First, the motor load rate is low.
Due to the improper selection of the motor, excessive surplus or changes in the production process, the actual working load of the motor is far less than the rated load, and the motor that accounts for about 30% to 40% of the installed capacity runs under the rated load of 30% to 50%. Efficiency is too low.


2.Second, the power supply voltage is asymmetric or the voltage is too low.
Due to the unbalance of the single-phase load of the three-phase four-wire low-voltage power supply system, the three-phase voltage of the motor is asymmetrical, and the motor generates negative sequence torque. Losses in the operation of large motors. In addition, the grid voltage is low for a long time, which makes the motor current in normal operation too large, so the loss increases. The greater the three-phase voltage asymmetry, the lower the voltage, the greater the loss.


3.The third is that the old and old (obsolete) motors are still in use.
These motors use class E insulation, are bulky, have poor starting performance, and are inefficient. Although it has undergone years of renovation, it is still in use in many places.

4.Fourth, poor maintenance management.
Some units do not maintain the motors and equipment as required, and allow them to run for a long time, which makes the loss continue to increase.
Therefore, in view of these energy consumption performance, it is worth studying which energy saving scheme to choose.


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There are roughly seven types of motor energy-saving solutions



1. Select energy-saving motor
Compared with ordinary motors, the high-efficiency motor optimizes the overall design, selects high-quality copper windings and silicon steel sheets, reduces various losses, reduces losses by 20%~30%, and improves efficiency by 2%~7%; payback period Usually 1-2 years, some months. In comparison, the high-efficiency motor is 0.413% more efficient than the J02 series motor. Therefore, it is imperative to replace the old electric motors with high-efficiency electric motors.

2. Appropriate selection of motor capacity to achieve energy saving
The state has made the following regulations for the three operating areas of three-phase asynchronous motors: the economic operation area is between 70% and 100% of the load rate; the general operation area is between 40% and 70% of the load rate; the load rate is 40% The following are non-economic operating areas. Improper selection of motor capacity will undoubtedly result in waste of electric energy. Therefore, using a suitable motor to improve the power factor and load rate can reduce power loss and save energy.


3. Use magnetic slot wedge instead of original slot wedge
The magnetic slot wedge mainly reduces the no-load iron loss in the asynchronous motor. The no-load additional iron loss is generated in the stator and rotor iron core by the harmonic magnetic flux caused by the cogging effect in the motor. The high-frequency additional iron loss induced by the stator and rotor in the iron core is called pulse vibration loss. In addition, the teeth of the stator and rotor are sometimes aligned and sometimes misaligned, and the magnetic flux of the tooth cluster on the tooth surface fluctuates, which can induce eddy currents in the tooth surface line layer, resulting in surface loss. Pulse vibration loss and surface loss are collectively called high-frequency additional losses, which account for 70% to 90% of motor stray losses, and the other 10% to 30% are called load additional losses, which are generated by leakage magnetic flux. Although the use of magnetic slot wedges will reduce the starting torque by 10% to 20%, the iron loss of the motor using magnetic slot wedges can be reduced by 60k compared to the motor using ordinary slot wedges, and it is very suitable for no-load or light-load starting motor transformation .


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4. Adopt Y/△ automatic conversion device
In order to solve the waste of electric energy when the equipment is lightly loaded, on the premise of not replacing the motor, a Y/△ automatic conversion device can be used to achieve the purpose of saving electricity. Because in the three-phase AC power grid, the voltage obtained by the different connection of the load is different, so the energy absorbed from the power grid is also different.


5. Motor power factor reactive power compensation
Improving power factor and reducing power loss are the main purposes of reactive power compensation. The power factor is equal to the ratio of active power to apparent power. Usually, a low power factor will cause excessive current. For a given load, when the supply voltage is constant, the lower the power factor, the greater the current. Therefore, the power factor is as high as possible to save electric energy.


6. Frequency conversion speed regulation
Most of the loads of fans and pumps are selected according to the demand for full-load work. In practical applications, most of the time is not in a full-load working state. Since it is difficult to adjust the speed of AC motors, windshields, return valves, or start and stop times are often used to adjust the air volume or flow. At the same time, it is difficult for large motors to frequently start and stop under the power frequency state, and the power shock is large, which will inevitably cause power loss and Current impact when switching on and off. It is the most scientific control method to directly control the load of fans and pumps with the frequency converter. When the motor runs at 80% of the rated speed, the energy saving efficiency is close to 40%. At the same time, closed-loop constant pressure control can also be realized, and the energy saving efficiency will be further improved. . Because the frequency converter can realize the soft stop and soft start of large motors, it avoids the voltage shock when starting, reduces the failure rate of the motor, prolongs the service life, and also reduces the capacity requirements and reactive power loss of the power grid.


7. Liquid speed regulation of winding motor
The liquid resistance speed control technology is developed on the basis of the traditional product liquid resistance starter. The purpose of stepless speed regulation is still achieved by changing the distance between the plates to adjust the size of the resistance. This makes it have good starting performance at the same time. It is powered on for a long time, which brings about the problem of heating and heating. Due to the unique structure and reasonable heat exchange system, its working temperature is limited to a reasonable temperature. The liquid resistance speed regulation technology for winding motors has been rapidly popularized due to its advantages of reliable operation, convenient installation, large energy saving, easy maintenance and low investment. For some speed regulation accuracy, the requirements for speed regulation are not high and the speed regulation range is not wide. , and infrequent speed regulation of wound motors, such as large and medium wound asynchronous motors of fans, pumps and other equipment, the use of liquid speed regulation effect is remarkable.