Because of their characteristic long time operation, the most common application for industrial motors is in liquid delivering pumps. Thus it becomes an important field for energy saving and reduction of carbon emissions. According to estimations, about 85% of the equipment’s cost is used to pay for energy expenses during a pump’s lifetime. Thus choosing a high efficiency pump can reduce costs. The efficiency of each transmission components defines the overall efficiency of the pump system, and the key technologies for the high efficiency motor are variable frequency drive and high efficiency head. When using a permanent magnet motor it must be paired with variable frequency drives. Through this pairing, the efficiency of the pump system can be enhanced greatly (example shown below). The efficiency of industrial motor series by Chicony Power has surpassed IEC IE4 level, and can effectively increase pump efficiency.
Fans and blowers for gas are the second most common application for industrial motors. Thus it is also an important field for energy saving and reduction of carbon emissions. The main function of fans and blowers is to supply and extract air, for heat exchange devices (such as the radiator fans in cooling towers). The main components in a fan system include: propeller blades, wind tunnel, air volume control device, motor and driving control. The operating efficiency of the motor at different speeds will directly affect the fan’s performance and operation costs. By using a permanent magnet motor coupled with a variable frequency drive, the applied variable frequency drive will slowly increase the motor’s speed during start up, greatly reducing starting current, increases the equipment’s service lifetime. Adjusting air volume by changing the motor speed is a much more efficient method compared to using physical air dampers to control air volume. The combination of permanent magnet motor with variable frequency drive provides the highest efficiency and energy saving at any working speed.
|Type of Motor||Equipment Costs|
full load (%)
|Total Costs for|
10 Yrs (USD$)
|High efficiency Motor||1,828||91.7||6000||15,888||160,703|
Air compressors are mechanical devices that increase the pressure of gas by changing the gas volume or changing the gas velocity. There are four main types: the reciprocating compressor, the rotary compressor, the screw compressor and the centrifugal compressor. According to estimations, about 75% of the equipment’s cost is used to pay for energy expenses during a compressor’s lifetime, thus high efficiency is critical.
By coupling a permanent magnet motor with a variable frequency drive, the efficiency of the air compressor can be increased significantly. Variable frequency air compressors have the highest operation efficiency with large energy savings; Starting current can be significantly reduced, increasing the air compressor’s service lifetime.
The function of a vacuum pump is to extract the air from an enclosed space creating a vacuum. They are being used extensively in pharmaceutical, food, chemical, and semiconductor industries. According to the vacuum level that can be achieved, vacuum pumps can be classified into three categories: normal vacuum, high vacuum and ultra-high vacuum.
The efficiency of the permanent magnet motors used is much higher than that of traditional induction motors. Moreover, the instantaneous output is larger (rated at 1.5x), speed response is faster. Device must be coupled with a variable frequency drive, for adjusting speed according to the system requirements.
Commercial HVAC/R make up a large proportion of the energy used by the population. These systems require fans and pumps. If those could be replaced for variable speed fans and pumps, there could be a large decrease in energy needs.
For a cooling tower as example; a permanent magnet motor coupled with a variable frequency drive is installed. The transmission mechanism can be replaced for a direct junction transmission, simplifying the transmission system, increasing the system’s reliability and efficiency, and the motor’s efficiency is also increased.
Applications of conveyor belts are extensive, such as in steel industry, mining, aeronautics, logistics and automated production lines. The advantage of using permanent magnet motors is the increased efficiency, and lower energy consumption. The instantaneous output of permanent magnet motors is high, and can overcome jamming in the conveyor, decreasing the possibilities of malfunction in the production line.
Additionally, permanent magnet motors can be coupled with encoders, enabling the monitoring of the actual positions of products on the conveyor, and complies with the requirements of high speed and high precision conveyors.