There are significant differences between magnetic levitation fans and Roots fans in multiple aspects:
1、 Structural Design
Magnetic levitation fan: Using magnetic levitation technology, no mechanical support is required. Through magnetic levitation, the fan rotor is separated from the friction with stationary components, achieving non-contact rotation. This design reduces the friction loss of the system, improves efficiency and reliability.
Roots blower: It uses dual blade impellers internally to achieve gas compression and transportation, and keeps the two rotors engaged through synchronous gears at the rotor shaft end. Its structure is relatively complex, but due to the tight fit between the internal screws and external accessories, the fan has low noise and runs smoothly.
2、 Energy efficiency ratio
Magnetic levitation fan: Due to the use of advanced magnetic levitation technology, it can significantly reduce energy consumption and increase efficiency. Usually, Birotz fans save 30-40% energy.
Roots blower: It is slightly inferior to magnetic levitation blower in terms of energy efficiency, especially in traditional designs where energy consumption is relatively high. However, there are also some energy-saving Roots blowers on the market, but their overall energy efficiency is still lower than that of magnetic levitation blowers.
3、 Noise level
Magnetic levitation fan: There is no contact friction during operation, so the noise level is relatively low, usually controlled below 80 decibels.
Roots blower: Due to the rotation of the impeller and the compression process of the gas, significant noise is generated during operation, typically around 110 decibels. Silencers and soundproof covers need to be installed to reduce noise.
4、 Maintenance cost
Magnetic levitation fan: does not require mechanical support and lubricating oil, has low friction loss, and therefore has lower maintenance costs. Simply replace the filter cotton regularly and perform simple operations.
Roots blower: After long-term operation, the internal gear transmission may experience wear and tear, requiring regular inspection and maintenance of components such as bearings, gears, belts, and lubricating oil. The maintenance cost is relatively high.
5、 Service life
Magnetic levitation fan: The lifespan can generally reach more than 20 years, and due to its non-contact friction design, the failure rate is relatively low.
Roots blower: The service life is generally 5-8 years and requires regular maintenance and replacement of components.
6、 Application scope
Magnetic levitation fan: widely used in occasions with high requirements for gas compression and transportation efficiency, such as sewage treatment plants, food processing plants, pharmaceutical plants, etc. Meanwhile, due to its characteristic of not requiring lubricating oil, it is also suitable for situations where clean and pollution-free air needs to be transported.
Roots blower: Due to its simple structure, convenient manufacturing, and affordable price, it is widely used in gas transportation and pressurization systems for low-pressure applications such as aquaculture oxygenation and cement transportation. In addition, it can also be used as a vacuum pump and has applications in fields such as chemical engineering and metallurgy.
7、 Price
Magnetic levitation fan: With high technological content and relatively high research and production costs, the initial purchase price is relatively expensive.
Roots blower: The price is relatively affordable and suitable for small and medium-sized enterprises to use.
